NAGAI HIROSHI 永井洋

… Alternative Names

NAGAI Hiroshi 永井洋

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Researcher Number	00455198
Other IDs
Affiliation (Current)	2025: 国立天文台, アルマプロジェクト, 准教授
Affiliation (based on the past Project Information) *help	2023: 国立天文台, アルマプロジェクト, 准教授 2018 – 2022: 国立天文台, アルマプロジェクト, 特任准教授 2014 – 2017: 国立天文台, チリ観測所, 特任准教授 2014 – 2016: 国立天文台, チリ観測所, 准教授 2013: 国立天文台, チリ観測所, 助教 … More 2012: 国立天文台, チリ観測所, 特任助教 2012: 国立天文台, チリ観測所, 研究員 2011: 国立天文台, ALMA推進室, 研究員 2010: 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 研究員 2009: 国立天文台, VSOP-2推進室, 研究員 Less
Review Section/Research Field	Principal Investigator Basic Section 16010:Astronomy-related / Astronomy Except Principal Investigator Astronomy / Basic Section 16010:Astronomy-related
Keywords	Principal Investigator 電波観測 / アルマ望遠鏡 / VLBI / ALMA / ブラックホール降着流 / 活動銀河核 / 分子線観測 / 銀河団コア / BCGs / 核周領域 … More / ALMA望遠鏡 / AGNフィードバック / 銀河団 / 巨大質量ブラックホール / ミリ波サブミリ波偏波観測 / 質量降着現象 / 超巨大ブラックホール / アルマ / ブラックホール質量降着流 / 偏波観測 … More Except Principal Investigator ブラックホール / 電波 / VLBI / ジェット / 活動銀河核 / 電波天文学 / 銀河 / 磁場 / 時間変動 / 多波長偏光観測 / 活動銀河核ジェット / 磁場構造 / 偏光 / 国際情報交換（米国） / 国際情報交換：アメリカ合衆国 / イメージング / サブミリ波 / 超長基線電波干渉計 / 活動銀河中心核 / 韓国：イタリア / 韓国: イタリア / 相対論的ジェット / 位置天文 / 位置天文学 / 降着円盤 / 位相補償 / 電波干渉計 / 干渉計 / 天文学 / 活動銀河 / 観測技術 / 天文 / アウトフロー Less

Clarifying magnetic fields in AGN jets by radio and optical polarimetry together with VLBI images
- Principal Investigator
  
  Kameno Seiji
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  National Astronomical Observatory of Japan
Cold Accretion from the Core of Galaxy Clusters to Super Massive Black Holes and Its Relation with AGN ActivityPrincipal Investigator
- Principal Investigator
  
  Nagai Hiroshi
- Project Period (FY)
  2018 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  National Astronomical Observatory of Japan
Probing Black Hole Accretion in Low Luminosity AGNs using ALMA PolarimetryPrincipal Investigator
- Principal Investigator
  
  Nagai Hiroshi
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Astronomy
- Research Institution
  National Astronomical Observatory of Japan
Precise measurements of black holes for studies of active galactic nuclei
- Principal Investigator
  
  DOI AKIHIRO
- Project Period (FY)
  2012 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Astronomy
- Research Institution
  Japan Aerospace EXploration Agency
日韓ＶＬＢＩ網で探る巨大ブラックホールからの相対論的ジェット噴流
- Principal Investigator
  
  紀基樹
- Project Period (FY)
  2012 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  Japan Aerospace Exploration Agency
Development of new imaging tehchnique for sub-mm VLBI
- Principal Investigator
  
  HONMA Mareki
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  National Astronomical Observatory of Japan
Observational Studies of the active galactic nuclei with rapidly growing black holes by direct imaging using VLBI
- Principal Investigator
  
  DOI Akihiro
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  Japan Aerospace Exploration Agency

[Journal Article] The Relationships between Active Galactic Nucleus Power and Molecular Gas Mass within 500 pc of the Center of Elliptical Galaxies2024
- Author(s)
  Fujita Yutaka、Izumi Takuma、Nagai Hiroshi、Kawakatu Nozomu、Kawanaka Norita
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 964 Issue: 1 Pages: 29-29
- DOI
  10.3847/1538-4357/ad28c0
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-22K03624, KAKENHI-PROJECT-22K03686, KAKENHI-PROJECT-23K03462, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-21H04496
[Journal Article] Cold gas in the heart of Perseus A2023
- Author(s)
  Morganti Raffaella、Murthy Suma、Oosterloo Tom、Blanchard Jay、Cook Claire、Paragi Zsolt、Orienti Monica、Nagai Hiroshi、Schulz Robert
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 678 Pages: A42-A42
- DOI
  10.1051/0004-6361/202347117
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Journal Article] The correlation between the 500?pc scale molecular gas masses and AGN powers for massive elliptical galaxies2023
- Author(s)
  Fujita Yutaka、Izumi Takuma、Kawakatu Nozomu、Nagai Hiroshi、Hirasawa Ryo、Ikeda Yu
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 75 Issue: 5 Pages: 925-936
- DOI
  10.1093/pasj/psad050
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-23K03462, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-21H04496
[Journal Article] X-Ray Polarization Observations of BL Lacertae2022
- Author(s)
  Middei Riccardo、Liodakis Ioannis、Perri Matteo、Uemura Makoto、他144名
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 942 Issue: 1 Pages: 10-23
- DOI
  10.3847/2041-8213/aca281
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03616, KAKENHI-PROJECT-19H00696, KAKENHI-PROJECT-21H04916, KAKENHI-PROJECT-21H01137, KAKENHI-PROJECT-19K03902
[Journal Article] Collimation of the Relativistic Jet in the Quasar 3C 2732022
- Author(s)
  Okino Hiroki、Akiyama Kazunori、Asada Keiichi、Gomez Jose L.、Hada Kazuhiro、Honma Mareki、Krichbaum Thomas P.、Kino Motoki、Nagai Hiroshi、Bach Uwe、Blackburn Lindy、Bouman Katherine L.、et al.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 940 Issue: 1 Pages: 65-65
- DOI
  10.3847/1538-4357/ac97e5
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-21H04488, KAKENHI-PROJECT-22H00157
[Journal Article] Massive Molecular Gas as a Fuel Tank for Active Galactic Nuclei Feedback in Central Cluster Galaxies2022
- Author(s)
  Yutaka Fujita, Nozomu Kawakatu Nozomu, and Hiroshi Nagai
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 924 Issue: 1 Pages: 24-24
- DOI
  10.3847/1538-4357/ac31a6
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03647, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03628
[Journal Article] Diffuse Synchrotron Emission Associated with the Starburst in the Circumnuclear Disk of NGC 12752021
- Author(s)
  Nagai H.、Kawakatu N.
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 914 Issue: 1 Pages: L11-L11
- DOI
  10.3847/2041-8213/ac03ba
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03628
[Journal Article] First M87 Event Horizon Telescope Results. VII. Polarization of the Ring2021
- Author(s)
  Akiyama Kazunori et al. including Hiroshi Nagai
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 910 Issue: 1 Pages: L12-L12
- DOI
  10.3847/2041-8213/abe71d
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18KK0090, KAKENHI-PROJECT-19KK0081, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-19H01943, KAKENHI-PROJECT-18K03656
[Journal Article] Morphological Transition of the Compact Radio Lobe in 3C 84 via the Strong Jet-Cloud Collision2021
- Author(s)
  Kino Motoki、Niinuma Kotaro、Kawakatu Nozomu、Nagai Hiroshi、Giovannini Gabriele、Orienti Monica、Wajima Kiyoaki、D’Ammando Filippo、Hada Kazuhiro、Giroletti Marcello、Gurwell Mark
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 920 Issue: 1 Pages: L24-L24
- DOI
  10.3847/2041-8213/ac24fa
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18KK0090, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-19H01943, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-21H04488
[Journal Article] The Explosion in Orion-KL as Seen by Mosaicking the Magnetic Field with ALMA2021
- Author(s)
  Cortes Paulo C.、Le Gouellec Valentin J. M.、Hull Charles L. H.、Girart Josep M.、Louvet Fabien、Fomalont Edward B.、Kameno Seiji、Moellenbrock George A.、Nagai Hiroshi、Nakanishi Kouichiro、Villard Eric
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 907 Issue: 2 Pages: 94-94
- DOI
  10.3847/1538-4357/abcafb
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K03712
[Journal Article] Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole2020
- Author(s)
  Psaltis Dimitrios et al. including Hiroshi Nagai
- Journal Title
  
  Physical Review Letters
  
  Volume: 125 Issue: 14 Pages: 141104-141113
- DOI
  10.1103/physrevlett.125.141104
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18K03656
[Journal Article] Verification of Radiative Transfer Schemes for the EHT2020
- Author(s)
  Gold Roman et al. including Hiroshi Nagai
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 897 Issue: 2 Pages: 148-148
- DOI
  10.3847/1538-4357/ab96c6
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18K03656
[Journal Article] Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution2020
- Author(s)
  Kim Jae-Young et al. including Hiroshi Nagai
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 640 Pages: A69-A69
- DOI
  10.1051/0004-6361/202037493
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-19H01943, KAKENHI-PROJECT-18K03656
[Journal Article] ALMA observations of PSR B1259?63/LS 2883 in an inactive period: Variable circumstellar disk?2020
- Author(s)
  Fujita Yutaka、Nagai Hiroshi、Akahori Takuya、Kawachi Akiko、Okazaki Atsuo T
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 72 Issue: 5
- DOI
  10.1093/pasj/psaa067
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03647, KAKENHI-PROJECT-18K03709
[Journal Article] SYMBA: An end-to-end VLBI synthetic data generation pipeline2020
- Author(s)
  Roelofs F.、Janssen M.、Natarajan I.、Deane R.、Davelaar J.、Olivares H.、Porth O.、Paine S. N.、Bouman K. L.、Tilanus R. P. J.、van Bemmel I. M.、Falcke H.、Kawashima T.、 et al.
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 636 Pages: A5-A5
- DOI
  10.1051/0004-6361/201936622
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18K03656
[Journal Article] Herschel SPIRE Discovery of Far-infrared Excess Synchrotron Emission from the West Hot Spot of the Radio Galaxy Pictor A2020
- Author(s)
  Isobe Naoki、Sunada Yuji、Kino Motoki、Koyama Shoko、Tashiro Makoto、Nagai Hiroshi、Pearson Chris
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 899 Issue: 1 Pages: 17-17
- DOI
  10.3847/1538-4357/ab9d1c
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18K03656
[Journal Article] Characterizing the Accuracy of ALMA Linear-polarization Mosaics2020
- Author(s)
  Hull Charles L. H.、Cortes Paulo C.、Gouellec Valentin J. M. Le、Girart Josep M.、Nagai Hiroshi、Nakanishi Kouichiro、Kameno Seiji、Fomalont Edward B.、Brogan Crystal L.、Moellenbrock George A.、Paladino Rosita、Villard Eric
- Journal Title
  
  Publications of the Astronomical Society of the Pacific
  
  Volume: 132 Issue: 1015 Pages: 094501-094501
- DOI
  10.1088/1538-3873/ab99cd
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-20K14527, KAKENHI-PROJECT-18K03712
[Journal Article] Jansky VLA observations of synchrotron emitting optical hotspots of 3C 227 and 3C 445 radio galaxies2020
- Author(s)
  Orienti M、Migliori G、Brunetti G、Nagai H、D’Ammando F、Mack K-H、Prieto M A
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 494 Issue: 2 Pages: 2244-2253
- DOI
  10.1093/mnras/staa777
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Journal Article] Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope2020
- Author(s)
  Wielgus Maciek et al. including Hiroshi Nagai
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 901 Issue: 1 Pages: 67-67
- DOI
  10.3847/1538-4357/abac0d
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18KK0090, KAKENHI-PROJECT-19KK0081, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-19H01943, KAKENHI-PROJECT-18K03656
[Journal Article] THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope2020
- Author(s)
  Broderick Avery E. et al. including Hiroshi Nagai
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 897 Issue: 2 Pages: 139-139
- DOI
  10.3847/1538-4357/ab91a4
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18K13594, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18K03656
[Journal Article] The ALMA Discovery of the Rotating Disk and Fast Outflow of Cold Molecular Gas in NGC 12752019
- Author(s)
  Nagai H.、Onishi K.、Kawakatu N.、Fujita Y.、Kino M.、Fukazawa Y.、Lim J.、Forman W.、Vrtilek J.、Nakanishi K.、Noda H.、Asada K.、Wajima K.、Ohyama Y.、David L.、Daikuhara K.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 883 Issue: 2 Pages: 193-193
- DOI
  10.3847/1538-4357/ab3e6e
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03647, KAKENHI-PROJECT-18K03656, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-19K14763
[Journal Article] Revealing the Broad Line Region of NGC 1275: The Relationship to Jet Power2018
- Author(s)
  Punsly Brian、Marziani Paola、Bennert Vardha N.、Nagai Hiroshi、Gurwell Mark A.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 869 Issue: 2 Pages: 143-143
- DOI
  10.3847/1538-4357/aaec75
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-15K17619
[Journal Article] VERA monitoring of the radio jet 3C?84 in the period of 2007?2013: Detection of non-linear motion2018
- Author(s)
  Hiura Koichiro、Nagai Hiroshi、Kino Motoki、Niinuma Kotaro、Sorai Kazuo、Chida Hikaru、Akiyama Kazunori、D’Ammando Filippo、Giovannini Gabriele、Giroletti Marcello、Hada Kazuhiro、Honma Mareki、Koyama Shoko、Orienti Monica、Orosz Gabor、Sawada-Satoh Satoko
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 70 Issue: 5
- DOI
  10.1093/pasj/psy078
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03656, KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-18K13592
[Journal Article] Evidence of Jet?Clump Interaction: A Flip of the Radio Jet Head of 3C 842018
- Author(s)
  Kino M.、Wajima K.、Kawakatu N.、Nagai H.、Orienti M.、Giovannini G.、Hada K.、Niinuma K.、Giroletti M.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 864 Issue: 2 Pages: 118-118
- DOI
  10.3847/1538-4357/aad6e3
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03656, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-16K17670, KAKENHI-PROJECT-18K13592
[Journal Article] A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii2018
- Author(s)
  Giovannini, G., 他計25名（M. Honma 14番目）
- Journal Title
  
  Nature Astronomy
  
  Volume: in press Issue: 6 Pages: 472-477
- DOI
  10.1038/s41550-018-0431-2
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-25120007, KAKENHI-INTERNATIONAL-15K21718, KAKENHI-PROJECT-18K03656, KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-18K13592
[Journal Article] Parabolic Jets from the Spinning Black Hole in M872018
- Author(s)
  Nakamura Masanori、Asada Keiichi、Hada Kazuhiro、Pu Hung-Yi、Noble Scott、Tseng Chihyin、Toma Kenji、Kino Motoki et al.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 868 Issue: 2 Pages: 146-146
- DOI
  10.3847/1538-4357/aaeb2d
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03656, KAKENHI-PROJECT-18K03709, KAKENHI-PROJECT-18KK0090, KAKENHI-ORGANIZER-17H06357, KAKENHI-PROJECT-18H03721, KAKENHI-PROJECT-18H01245
[Journal Article] Discovery of a new subparsec counterjet in NGC 1275: the inclination angle and the environment2017
- Author(s)
  Y. Fujita, & H. Nagai
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society, Letters
  
  Volume: 465 Issue: 1 Pages: L94-L98
- DOI
  10.1093/mnrasl/slw217
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K05080, KAKENHI-PROJECT-15K17619
[Journal Article] Enhanced Polarized Emission from the One-parsec-scale Hotspot of 3C 84 as a Result of the Interaction with the Clumpy Ambient Medium2017
- Author(s)
  Nagai H.、Fujita Y.、Nakamura M.、Orienti M.、Kino M.、Asada K.、Giovannini G.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 849 Issue: 1 Pages: 52-52
- DOI
  10.3847/1538-4357/aa8e43
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-15K05080
[Journal Article] Fossil shell emission in dying radio loud AGNs2016
- Author(s)
  Kino, Motoki, Ito, Hirotaka, Kawakatu, Nsonomu, Orienti, Monica, Nagai, Hiroshi, Wajima, Kiyoaki, Itoh, Ryo
- Journal Title
  
  Astronomische Nachrichten
  
  Volume: 337 Issue: 1-2 Pages: 47-52
- DOI
  10.1002/asna.201512263
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25800099, KAKENHI-PROJECT-24340042
[Journal Article] Discovery of off-axis jet structure of TeV blazar Mrk501 with mm-VLBI2016
- Author(s)
  Koyama, S., Kino, M., Giroletti, M., Doi, A., Giovannini, G., Orienti, M., Hada, K., Ros, E., Niinuma, K., Nagai, H., Savolainen, T., Krichbaum, T. P., Perez-Torres, M. A.
- Journal Title
  
  Astronomy and Astrophysics
  
  Volume: 586 Pages: 113-122
- DOI
  10.1051/0004-6361/201526541
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800109, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042
[Journal Article] Nature of radio feature formed by re-started jet activity in 3C 84 and its relation with γ-ray emissions2016
- Author(s)
  Nagai, H., Chida, H., Kino, M., Orienti, M., D'Ammando, F., Giovannini, G., Hiura, K.
- Journal Title
  
  Astronomische Nachrichten
  
  Volume: 337 Issue: 1-2 Pages: 69-72
- DOI
  10.1002/asna.201512267
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-24340042
[Journal Article] ALMA Science Verification Data: Millimeter Continuum Polarimetry of the Bright Radio Quasar 3C 2862016
- Author(s)
  Nagai, H., Nakanishi, K., Paladino, R., Hull, C. L. H., Cortes, P., Moellenbrock, G., Fomalont, E., Asada, K., Hada, K.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 未定
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Journal Article] ALMA Science Verification Data: Millimeter Continuum Polarimetry of the Bright Radio Quasar 3C 2862016
- Author(s)
  Nagai, H., Nakanishi, K., Paladino, R., Hull, C. L. H., Cortes, P., Moellenbrock, G., Fomalont, E., Asada, K., Hada, K.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 824 Issue: 2 Pages: 132-141
- DOI
  10.3847/0004-637x/824/2/132
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800109, KAKENHI-PROJECT-15K17619
[Journal Article] Submillimeter Polarization Observation of the Protoplanetary Disk around HD 1425272016
- Author(s)
  Kataoka, A., Tsukagoshi, T., Momose, M., Nagai, H., Muto, T., Dullemond, C. P., Pohl, A., Fukagawa, M., Shibai, H., Hanawa, T., & Murakawa, K.
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 831 Issue: 2 Pages: 6-12
- DOI
  10.3847/2041-8205/831/2/l12
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-23103004, KAKENHI-WRAPUP-16H01702, KAKENHI-PROJECT-15K05017, KAKENHI-PROJECT-15K17606, KAKENHI-PROJECT-15K17619, KAKENHI-PROJECT-26800106
[Journal Article] High-sensitivity 86GHz(3.5mm) VLBI observations of M87: Deep imaging of the jet base at a resolution of 10 Schwarzschild radii2016
- Author(s)
  Hada, K., Kino, M., Doi, A., Nagai, H., Honma, M., Akiyama, K., Tazaki, F., Lico, R., Giroletti, M., Giovannini, G., Orienti, M., Hagiwara, Y.,
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 817 Issue: 2 Pages: 131-147
- DOI
  10.3847/0004-637x/817/2/131
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800109, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PLANNED-25120007
[Journal Article] VLBI observations of bright AGN jets with the KVN and VERA Array (KaVA): Evaluation of imaging capability2015
- Author(s)
  Niinuma, Kotaro; Lee, Sang-Sung; Kino, Motoki; Sohn, Bong Won; Akiyama, Kazunori et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 66 Issue: 6 Pages: 103-118
- DOI
  10.1093/pasj/psu104
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540242, KAKENHI-PROJECT-26800109, KAKENHI-PLANNED-25120007
[Journal Article] Apparent Inward Motion of the Parsec-Scale Jet in the BL Lac Object OJ287 during the 2011-2012 γ-ray Flares2015
- Author(s)
  Sawada-Satoh, S.; Akiyama, K.; Niinuma, K.; Nagai, H.; Kino, M.; D'Ammando, F.; Koyama, S.; Hada, K.; Orienti, M.; Honma, M.; Shibata, K. M.
- Journal Title
  
  Publications of The Korean Astronomical Society
  
  Volume: 30 Issue: 2 Pages: 429-432
- DOI
  10.5303/pkas.2015.30.2.429
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] 230GHz VLBI observations of M87: Event-horizon-scale structure during an enhanced very-high-energy gamma-ray state in 20122015
- Author(s)
  Akiyama, K., Lu, R.-S, Fish, V. L., Doeleman, S. S., Broderick, A. E., Dexter, J., Hada, K. and 41 co-authors
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 807 Issue: 2 Pages: 150-160
- DOI
  10.1088/0004-637x/807/2/150
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800109, KAKENHI-PLANNED-25120007, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042
[Journal Article] Magnetization degree at the jet base of M87 derived from the event horizon telescope data: testing magnetically driven jet paradigm2015
- Author(s)
  Kino, M.; Takahara, F.; Hada, K.; Akiyama, K.; Nagai, H.; Sohn, B. W.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 803 Issue: 1 Pages: 30-30
- DOI
  10.1088/0004-637x/803/1/30
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-24340042, KAKENHI-PLANNED-25120007
[Journal Article] Discovery of a wandering radio jet base after a large X-ray flare in the blazar Markarian 4212015
- Author(s)
  Niinuma, K., Kino, M., Doi, A., Hada, K., Nagai, H., Koyama, S.
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 807 Issue: 1 Pages: 14-18
- DOI
  10.1088/2041-8205/807/1/l14
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800109, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042
[Journal Article] Probing Precise Location of Radio Core in TeV Blazar Mrk 501 with VERA at 43 GHz2015
- Author(s)
  Koyama, Shoko; Kino, Motoki; Doi, Akihiro; Niinuma, Kotaro; Hada, Kazuhiro; Nagai, Hiroshi; Honma, Mareki; Akiyama, Kazunori; Giroletti, Marcello; Giovannini, Gabriele; Orienti, Monica; Isobe, Naoki; Kataoka, Jun; Paneque, David; Kobayashi, Hideyuki; Asada, Keiichi
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 未定 Issue: 4
- DOI
  10.1093/pasj/psu144
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-26800109, KAKENHI-PLANNED-25120007, KAKENHI-PROJECT-24340042
[Journal Article] Discovery of Sub- to Superluminal Motions in the M87 Jet: An Implication of Acceleration from Sub-relativistic to Relativistic Speeds2014
- Author(s)
  Asada, Keiichi; Nakamura, Masanori; Doi, Akihiro; Nagai, Hiroshi; Inoue, Makoto
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: Volume 781, Issue 1 Issue: 1 Pages: L2-L2
- DOI
  10.1088/2041-8205/781/1/l2
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] A Strong Radio Brightening at the Jet Base of M 87 during the Elevated Very High Energy Gamma-Ray State in 20122014
- Author(s)
  Hada, K.; Giroletti, M.; Kino, M.; Giovannini, G.; D'Ammando, F.; Cheung, C. C.; Beilicke, M.; Nagai, H.; Doi, A.; Akiyama, K.; Honma, M.; Niinuma, K.; Casadio, C.; Orienti, M.; Krawczynski, H.; Gomez, J. L.; Sawada-Satoh, S.; Koyama, S.; Cesarini, A.; Nakahara, S.; Gurwell, M. A.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 788 Issue: 2 Pages: 165-177
- DOI
  10.1088/0004-637x/788/2/165
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540242, KAKENHI-PLANNED-25120007, KAKENHI-PROJECT-26800109
[Journal Article] Limb-brightened Jet of 3C 84 Revealed by the 43 GHz Very-Long-Baseline-Array Observation2014
- Author(s)
  Nagai, H.; Haga, T.; Giovannini, G.; Doi, A.; Orienti, M.; D'Ammando, F.; Kino, M.; Nakamura, M.; Asada, K.; Hada, K.; Giroletti, M.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 785 Issue: 1 Pages: 53-58
- DOI
  10.1088/0004-637x/785/1/53
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240, KAKENHI-PROJECT-26800109
[Journal Article] ALMA Continuum Spectrum of the M87 Nucleus. Quasi-simultaneous continuum observations at bands-3,6,7, and 92013
- Author(s)
  Doi, A., Hada, K., Nagai, H., Kino, M., Honma, M., Akiyama, K., Oyama and T., Kono, Y.
- Journal Title
  
  EPJ Web of Conferences
  
  Volume: 61 Pages: 8008-8008
- DOI
  10.1051/epjconf/20136108008
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24540240
[Journal Article] Probing the Radio Counterpart of Gamma-ray Flaring Region in 3C 842013
- Author(s)
  Nagai, H., Orienti, M., Kino, M., Doi, A., Giovannini, G., Asada, K., D'Ammando, F., Haga, T., Giroletti, M., Hada, K.
- Journal Title
  
  The European Physical Journal Web of Conferences
  
  Volume: 61 Pages: 040081-040085
- DOI
  10.1051/epjconf/20136104008
- Data Source
  KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24540240
[Journal Article] Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020+4320: Recently Restarted Jet Activity?2013
- Author(s)
  Doi, Nagai, et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65
- NAID
  40020043265
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] Very Long Baseline Array Multi-frequency Polarimetric Imaging of Radio-loud Broad Absorption Line Quasars2013
- Author(s)
  Hayashi, Takayuki J.; Doi, Akihiro; Nagai, Hiroshi
- Journal Title
  
  The Astrophysical Journal
  
  Volume: Volume 772, Issue 1 Issue: 1 Pages: 4-4
- DOI
  10.1088/0004-637x/772/1/4
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] The Innermost Collimation Structure of the M87 Jet Down to ~10 Schwarzschild Radii2013
- Author(s)
  Hada, K., Kino, M., Doi, A., Nagai, H., Honma, M., Hagiwara, Y., Giroletti, M., Giovannini, G., Kawaguchi, N.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 775 Issue: 1 Pages: 70-76
- DOI
  10.1088/0004-637x/775/1/70
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240, KAKENHI-PROJECT-24540242, KAKENHI-PLANNED-25120007
[Journal Article] The GENJI Programme: Gamma-Ray Emitting Notable AGN Monitoring by Japanese VLBI2013
- Author(s)
  Nagai, Hiroshi; Kino, Motoki; Niinuma, Kotaro; Akiyama, Kazunori; Hada, Kazuhiro; Koyama, Shoko; Orienti, Monica; Hiura, Koichiro; Sawada-Satoh, Satoko; Honma, Mareki; Giovannini, Gabriele; Giroletti, Marcello; Shibata, Katsunori; Sorai, Kazuo
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: Vol.65, No.2
- NAID
  40020043151
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] VERA monitoring of a blazar OJ 2872013
- Author(s)
  Sawada-Satoh, S., Akiyama, K., Kino, M., Nagai, H. and Niinuma, K.
- Journal Title
  
  EPJ Web of Conferences
  
  Volume: 61 Pages: 8007-8007
- DOI
  10.1051/epjconf/20136108007
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-24540240
[Journal Article] Evidence for a Nuclear Radio Jet and its Structure down to lsim100 Schwarzschild Radii in the Center of the Sombrero Galaxy (M 104, NGC 4594)2013
- Author(s)
  Hada, K., Doi, A., Nagai, H., Inoue, M., Honma, M., Giroletti, M., Giovannini, G.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 779 Issue: 1 Pages: 6-18
- DOI
  10.1088/0004-637x/779/1/6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540242, KAKENHI-PLANNED-25120007
[Journal Article] Radio and γ-ray follow-up of the exceptionallyhigh-activity state of PKS 1510-089 in 20112013
- Author(s)
  Monika Orienti
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 428 Issue: 3 Pages: 2418-2429
- DOI
  10.1093/mnras/sts201
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-12J07566, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240
[Journal Article] The GENJI Programme: Gamma-Ray Emitting Notable AGN Monitoring by Japanese VLBI Program2013
- Author(s)
  Nagai, Kino, Hada, et al
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] VLBI Imagings of a Kilo-Parsec Knot in 3C 3802013
- Author(s)
  Koyama, S., Kino, M., Nagai, H., Hada, K., Kameno, S., Kobayashi , H.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65 Issue: 2 Pages: 29-35
- DOI
  10.1093/pasj/65.2.29
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-13J03094, KAKENHI-PROJECT-23540268, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240
[Journal Article] Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020+4320: Recently Restarted Jet Activity?2013
- Author(s)
  Doi, Akihiro; Murata, Yasuhiro; Mochizuki, Nanako; Takeuchi, Hiroshi; Asada, Keiichi; Hayashi, Takayuki J.; Nagai, Hiroshi; Shibata, Katsunori M.; Oyama, Tomoaki; Jike, Takaaki; Fujisawa, Kenta; Sugiyama, Koichiro; Ogawa, Hideo; Kimura, Kimihiro; Honma, Mareki; Kobayashi, Hideyuki; Koyama, Shoko
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: Vol.65, No.3
- NAID
  40020043265
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020+4320: Recently Restarted Jet Activity?2013
- Author(s)
  Doi A., Murata Y., Mochizuki N., Takeuchi H., Asada K., Hayashi TJ., Nagai H., Shibata KM., Oyama T., Jike T., et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65 Issue: 3
- DOI
  10.1093/pasj/65.3.57
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24540242
[Journal Article] VLBI Imagings of Kilo-parsec Knot in 3C 3802013
- Author(s)
  Koyama, Kino, Nagai, Hada, et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65
- NAID
  40020043197
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] Very Long Baseline Array Imaging of Parsec-scale Radio Emissions in Nearby Radio-quiet Narrow-line Seyfert 1 Galaxies2013
- Author(s)
  Doi, Nagai, Hagiwara, et al
- Journal Title
  
  Astrophysical Journal
  
  Volume: 765 Issue: 1 Pages: 69-69
- DOI
  10.1088/0004-637x/765/1/69
- NAID
  120005373241
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] The GENJI Programme: Gamma-Ray Emitting Notable AGN Monitoring by Japanese VLBI2013
- Author(s)
  Nagai, Hiroshi; Kino, Motoki; Niinuma, Kotaro; Akiyama, Kazunori; Hada, Kazuhiro; Koyama, Shoko; Orienti, Monica; Hiura, Koichiro; Sawada-Satoh, Satoko; Honma, Mareki et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 65
- NAID
  40020043151
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24540240
[Journal Article] Kiloparsec-scale Radio Structures 1n Narrow-line Seyfert 1 Galaxies2012
- Author(s)
  Doi, Kino, Nagai, et al.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 760 Issue: 1 Pages: 41-41
- DOI
  10.1088/0004-637x/760/1/41
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] "Possible Detection of Apparent Superluminal Inward Motion in Markarian 421 after the Giant X-Ray Flare in 2010 February2012
- Author(s)
  K. Niinuma, M. Kino, H. Nagai, N. Isobe, K. E. Gabanyi, K. Hada, S. Koyama, K. Asada, T. Oyama, and K. Fujisawa
- Journal Title
  
  Astrophysical Journal
  
  Volume: 759 Issue: 2 Pages: 84-84
- DOI
  10.1088/0004-637x/759/2/84
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22740120, KAKENHI-PROJECT-22740130, KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240
[Journal Article] VLBI Observations of the Jet in M 87 during the Very High Energy y-Ray Flare in 2010 April2012
- Author(s)
  Hada, Kino, Nagai, Doi, Hagiwara, et al.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 760 Issue: 1 Pages: 52-57
- DOI
  10.1088/0004-637x/760/1/52
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042, KAKENHI-PROJECT-24540240, KAKENHI-PROJECT-24540242
[Journal Article] VLBI and single-dish monitoring of 3C 84 for the period 2009-20112012
- Author(s)
  Nagai, Kino, Doi, et al.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 423
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24340042
[Journal Article] Very Long Baseline Array Imaging of Parsec? scale Jet Structures in Radio-loud Narrow-line Seyfert1Galaxies2011
- Author(s)
  Doi, Asada, Nagai
- Journal Title
  
  ApJ
  
  Volume: Vol.738 Issue: 2 Pages: 126-126
- DOI
  10.1088/0004-637x/738/2/126
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540250
[Journal Article] Millimeter Radio Continuum Emissions as the Activity of Supermassive Black Holes in Nearby Early-type Galaxies and Low-luminosity Active Galactic Nuclei2011
- Author(s)
  Doi, A., et al.
- Journal Title
  
  The Astronomical Journal
  
  Volume: 142 Issue: 5 Pages: 167-167
- DOI
  10.1088/0004-6256/142/5/167
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20001003, KAKENHI-PROJECT-21540250, KAKENHI-PROJECT-23540268
[Journal Article] Globale-VLBI observations of the gamma? ray narrow line Seyfert1PMN J0948+00222011
- Author(s)
  Giroletti, Doi, Nagai, et al
- Journal Title
  
  A & A
  
  Volume: Vol.528 Pages: 11-14
- DOI
  10.1051/0004-6361/201116639
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540250
[Journal Article] VLBI Monitoring of 3C 84 (NGC 1275) in Early Phase of the 2005 Outburst2010
- Author(s)
  Nagai, Hiroshi ; Suzuki, Kenta ; Asada, Keiichi ; Kino, Motoki ; Kameno, Seiji ; Doi, Akihiro, et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 62, No2 Pages: 11-15
- NAID
  10026714344
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540250
[Journal Article] VLBI Monitoring of3C 84(NGC1275) in Early Phase of the2005Outburst2010
- Author(s)
  Nagai, Doi, Fujisawa, et al.
- Journal Title
  
  PASJ
  
  Volume: Vol.62, No.2 Pages: 11-15
- URL
  http://ads.nao.ac.jp/abs/2010PASJ.62L.11N
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540250
[Journal Article] Multiwavelength Monitoring of the Enigmatic Narrow? Line Seyfert1PMN J0948+0022in2009March-July2009
- Author(s)
  Abdo, Doi, Nagai, et al.
- Journal Title
  
  ApJ
  
  Volume: Vol.707, Issue1 Issue: 1 Pages: 727-737
- DOI
  10.1088/0004-637x/707/1/727
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] NGC 1275におけるジェット・降着流～最近の進展を中心に～2024
- Author(s)
  永井　洋
- Organizer
  ブラックホール大研究会 ~星質量から超巨大ブラックホールまで~
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Fate of Cold Gas Accretion in a BCG: The Case of Perseus/NGC12752023
- Author(s)
  Hiroshi Nagai
- Organizer
  ALMA at 10 years: Past, Present, and Future
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Radio View of Circumnuclear Region from Centimeter to Millimeter2023
- Author(s)
  Hiroshi Nagai
- Organizer
  Black hole astrophysics with VLBI 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] 2型セイファート銀河NGC 5506におけるAGNアウトフローからの非熱的放射の検出2022
- Author(s)
  永井洋, 川勝望, 大西響子, 土居明広, 泉拓磨, 紀基樹, 磯部直樹, 中西康一郎, 笹田真人、Monica Orienti
- Organizer
  日本天文学会2022秋季年会
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Imaging Diffuse Synchrotron Emission Associated with Supernova Explosions in the Circumnuclear Disk of NGC 12752021
- Author(s)
  Hiroshi Nagai, Nozomu Kawakatu
- Organizer
  East Asia AGN Workshop 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] NGC 1275核周円盤における超新星爆発起源の電波放射の発見2021
- Author(s)
  永井　洋、川勝　望
- Organizer
  日本天文学会秋季年会2021
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] ALMA Sees the Heart of Perseus2020
- Author(s)
  Hiroshi Nagai
- Organizer
  East Asia ALMA Science WS 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] ALMAによるNGC1275 の分子ガス核周円盤と高速アウトフローの発見2019
- Author(s)
  永井　洋
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Review of AGN Observations with ALMA2018
- Author(s)
  Hiroshi Nagai
- Organizer
  East-Asia AGN Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] What does ALMA tell us about extragalactic magnetic field?2018
- Author(s)
  Hiroshi Nagai
- Organizer
  New Insights in Extragalactic Magnetic Fields, Focus Meeting 8 at the XXX IAU General
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] Inflow and Outflow (Jets) in NGC 12752018
- Author(s)
  Hiroshi Nagai
- Organizer
  IAU Symposium 342, Perseus in Sicily: from black hole to cluster outskirts
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Cold vs. Hot Accretion in BCG System?: Cold Gas Properties within 100-pc Circumnuclear Region of NGC 12752018
- Author(s)
  Hiroshi Nagai
- Organizer
  East-Asia ALMA Science Workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K03709
[Presentation] Accretion Flow Property of 3C 84: A View Through Faraday Rotation2017
- Author(s)
  Nagai, H.
- Organizer
  Polarised Emission from Astrophysical Jets
- Place of Presentation
  Ierapetra, Greece
- Year and Date
  2017-06-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] ファラデー回転で探るNGC1275の核周環境2017
- Author(s)
  永井　洋
- Organizer
  2017年日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] Accretion Flow Properties of NGC 12752017
- Author(s)
  Hiroshi Nagai
- Organizer
  Polarised Emission from Astrophysical Jets
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] ALMA Polarimetric Observations of Centaurus A2017
- Author(s)
  Hiroshi Nagai
- Organizer
  Submm/mm/cm QUESO Workshop 2017: Centimetre-Sub-Millimetre Q&U (and V) European Southern Observatory Workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] Recent VLBI Results of 3C84 and Prospects for mm VLBI with phased ALMA2016
- Author(s)
  Hiroshi Nagai
- Organizer
  ALMA workshop "Ultra-High Resolution Observation with Phased-ALMA”
- Place of Presentation
  Mitaka campus of National Astronomical Observatory of Japan
- Year and Date
  2016-01-13
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 電波銀河3C84 のシェルにおけるガンマ線、宇宙線生成について2016
- Author(s)
  紀基樹, 伊藤裕貴, 輪島清昭, 川勝望, M. Orienti, 永井洋, 伊藤亮介(
- Organizer
  日本天文学会2016年秋季年会
- Place of Presentation
  愛媛大学城北キャンパス
- Year and Date
  2016-09-14
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 位置天文で探るブレーザーMrk 501 のジェット軸から外れた構造の起源2016
- Author(s)
  小山翔子, 紀基樹, 土居明広, 新沼浩太郎, 永井洋, 秦和弘, E. Ros, M. Giroletti, G. Giovannini, M. Orienti
- Organizer
  日本天文学会2016年秋季年会
- Place of Presentation
  愛媛大学城北キャンパス
- Year and Date
  2016-09-14
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] アルマ偏波観測で探るCentaurus Aの質量降着流2016
- Author(s)
  永井洋
- Organizer
  2016年日本天文学会秋季年会
- Place of Presentation
  愛媛大学(愛媛県、松山)
- Year and Date
  2016-09-14
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] ALMAサブミリ波偏波観測で探るCentaurus Aの質量降着流2016
- Author(s)
  永井洋、浅田圭一、中村雅徳、中西康一
- Organizer
  日本天文学会2016年秋季年会
- Place of Presentation
  愛媛大学城北キャンパス
- Year and Date
  2016-09-14
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] Long-term Radio and Gamma-ray Properties of 3C 842015
- Author(s)
  永井　洋
- Organizer
  5th Workshop on Compact Steep Spectrum and GHz-Peaked Spectrum Radio Sources
- Place of Presentation
  Riccione, Italy
- Year and Date
  2015-05-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17619
[Presentation] EVN 及び VLBA を用いた M87 ジェットにおける活動的ノット HST-1 の長期運動モニター2015
- Author(s)
  秦和弘, M. Giroletti, G. Giovannini, C. Casadio, J. L. Gomez, C. C. Cheung, 紀基樹, 永井洋, 土居明広
- Organizer
  日本天文学会2015年秋季年会
- Place of Presentation
  甲南大学
- Year and Date
  2015-09-09
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] M87における2012年TeV $\gamma$線活動に同期したブラックホール近傍数10シュバルツシルト半径以内からの強い電波増光の検出2014
- Author(s)
  秦和弘, 永井洋, 秋山和徳, 本間希樹, 紀基樹, 土居明広, 新沼浩太郎, G.Giroletti, G.Giovannini, T.Cheung,M.Beilicke他
- Organizer
  日本天文学会
- Place of Presentation
  国際基督教大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] GENJIプログラム:VLBIモニター観測による電波銀河3C 84の長期変動2014
- Author(s)
  千田華,永井洋,本間希樹,西嶋恭司,ほか GENJIプログラムメンバー
- Organizer
  日本天文学会
- Place of Presentation
  国際基督教大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 多周波位相補償VLBI観測によるソンブレロ銀河(M104, NGC4594)中心核100シュバルツシルト半径スケールの構造探査2013
- Author(s)
  秦和弘, 土居明広, 永井洋, 井上允
- Organizer
  日本天文学会
- Place of Presentation
  東北大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] VLBA-43GHzで捉えたブレーザーMrk 501のジェット深部の微細構造2013
- Author(s)
  小山翔子,紀基樹,土居明広,永井洋,新沼浩太郎,秦和弘,M. Giroletti,G. Giovannini, M. Orienti
- Organizer
  日本天文学会
- Place of Presentation
  東北大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 多波長観測で探る中心エンジン・核周物質とジェットのトリガ2013
- Author(s)
  永井洋、土居明広
- Organizer
  日本天文学会春季年会
- Place of Presentation
  埼玉大学
- Year and Date
  2013-03-22
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] TeVブレーザーMrk 421の静穏期における電波コアのふらつき探査2013
- Author(s)
  新沼浩太郎, 紀基樹, 土居明広, 小山翔子,秦和弘, 永井洋, Lico R.
- Organizer
  日本天文学会
- Place of Presentation
  東北大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 電波銀河3C 84ジェットにおける二重稜線構造の発見2013
- Author(s)
  永井洋,羽賀隆史,Monica Orienti,紀基樹,土居明広,秦和弘,浅田圭一,Gabriele Giovannini,Marcello Giroletti
- Organizer
  日本天文学会
- Place of Presentation
  東北大学
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] ガンマ線フレーザーMrk 501の電波コア絶対位置ふらつき探索2012
- Author(s)
  小山翔子、紀基樹、土居明広、永井洋、新沼浩太郎、秦和弘
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 狭輝線セイファート1型銀河の電波銀河の発見2012
- Author(s)
  土居明広,永井洋, et al
- Organizer
  日本天文学会,春季年会
- Place of Presentation
  龍谷大学
- Year and Date
  2012-03-19
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] 狭輝線セイファート1型銀河のカンマ線放射、キロパーセクスケール電波放射、ブラックホール質量の関連2012
- Author(s)
  土居明広、紀基樹、永井洋
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] GEN JIプログラム:3C 454. 3の2010年11月のy線フレア後の電波帯での多周波ライトカーブ2012
- Author(s)
  秋山和徳、永井洋、紀基樹、新沼浩太郎、秦和弘、小山翔子
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] GEN JIプログラム(II) : VERAを用いた高頻度活動銀河核ジェットモニター観測2012
- Author(s)
  永井洋、紀基樹、新沼浩太郎、秦和弘、小山翔子
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 多周波VLBIによる電波銀河M87の中心エンジン近傍10-100シュバルツシルト半径領域におけるジェット形状探査2012
- Author(s)
  秦和弘,紀基樹,永井洋,土居明広,萩原喜昭
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 活動銀河核ジェットの高エネルギー放射領域の探査とALMA偏光観測への展望2012
- Author(s)
  永井洋
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  大分大学
- Year and Date
  2012-09-19
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] 降着円盤風を持つクェーサーに付随する非熱的ジェットの再帰的活動性2012
- Author(s)
  林隆之,土居明広,永井洋, et al
- Organizer
  日本天文学会,春季年会
- Place of Presentation
  龍谷大学
- Year and Date
  2012-03-20
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] 狭輝線セイファート1型銀河の電波銀河の発見2012
- Author(s)
  土居明広、柳楽央至、川勝望、紀基樹、永井洋、浅田圭一
- Organizer
  日本天文学会2012年春季年会
- Place of Presentation
  龍谷大学
- Year and Date
  2012-03-19
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] 降着円盤風を持つクェーサーに付随する非熱的ジェットの再帰的活動性2012
- Author(s)
  林隆之、土居明広、永井洋
- Organizer
  日本天文学会2012年春季年会
- Place of Presentation
  龍谷大学
- Year and Date
  2012-03-20
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] 電波で明るいBALクェーサーのVLBAによる多周波偏波観測2011
- Author(s)
  林隆之,土居明広,永井洋
- Organizer
  日本天文学会,春季年会
- Place of Presentation
  筑波大学
- Year and Date
  2011-03-19
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] Broad Absorption Line/Giga-hertz Peaked Spectrum クェーサー? : Japanese VLBI Network によるVLBI多周波観測2009
- Author(s)
  土居明広、望月奈々子、村田泰宏、浅田圭一、永井洋、本間希樹、藤澤健太、JVNチーム
- Organizer
  日本天文学会
- Place of Presentation
  山口大学
- Year and Date
  2009-09-14
- Data Source
  KAKENHI-PROJECT-21540250
[Presentation] ALMAによるkpcジェットからのミリ波サブミリ波放射の検出
- Author(s)
  永井洋, 紀基樹、小山翔子、Elisabetta Liuzzo
- Organizer
  日本天文学会
- Place of Presentation
  山形大学
- Year and Date
  2014-09-11 – 2014-09-13
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] VLBA+GBT＠86GHzによるM87ジェット生成領域の高分解能・高解像度
- Author(s)
  秦和弘, 紀基樹, 永井洋, 本間希樹, 秋山和徳, 田崎文得, 萩原喜昭, 土居明広, G.Giovannini, M.Giroletti
- Organizer
  日本天文学会
- Place of Presentation
  国際基督教大学
- Year and Date
  2015-03-19 – 2015-03-22
- Data Source
  KAKENHI-PROJECT-24340042
[Presentation] M87ジェット最深部のサブミリ波放射領域における磁場強度
- Author(s)
  紀基樹, 高原文郎, 秦和弘, 秋山和徳, 永井洋, B.W. Sohn
- Organizer
  日本天文学会
- Place of Presentation
  山形大学
- Year and Date
  2014-09-11 – 2014-09-13
- Data Source
  KAKENHI-PROJECT-24340042

1. DOI Akihiro (90403641)

# of Collaborated Projects: 3 results

# of Collaborated Products: 34 results
2. 紀基樹 (70531234)

# of Collaborated Projects: 3 results

# of Collaborated Products: 29 results
3. HAGIWARA Yoshiaki (60399300)

# of Collaborated Projects: 2 results

# of Collaborated Products: 4 results
4. 秦和弘 (60724458)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
5. FUJISAWA Kenta (70311181)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. HONMA Mareki (20332166)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
7. OYAMA Tomoaki (70425403)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
8. KAWABE Ryohei (10195141)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Kameno Seiji (20270449)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 澤田聡子 (00452631)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
11. 笹田真人 (10725352)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 植村誠 (50403514)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. 深沢泰司 (60272457)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. AKIYAMA Kazunori

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. TAZAKI Fumie

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. Nakanishi Kouichiro

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
17. Fujita Yutaka

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
18. Asada Keiichi

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
19. KAWAKATU Nozomu

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results
20. ISOBE Naoki

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
21. KAWASHIMA TOMOHISA

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
22. GIOVANNINI Gabriele

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
23. MURAKAWA KOJI

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
24. 藤沢健太

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
25. 百瀬宗武

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
26. 深川美里

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
27. 武藤恭之

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
28. 塚越崇

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

NAGAI HIROSHI 永井 洋

NAGAI Hiroshi 永井 洋

Research Projects

Research Products

Co-Researchers

Clarifying magnetic fields in AGN jets by radio and optical polarimetry together with VLBI images

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Cold Accretion from the Core of Galaxy Clusters to Super Massive Black Holes and Its Relation with AGN ActivityPrincipal Investigator

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Probing Black Hole Accretion in Low Luminosity AGNs using ALMA PolarimetryPrincipal Investigator

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Precise measurements of black holes for studies of active galactic nuclei

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日韓ＶＬＢＩ網で探る巨大ブラックホールからの相対論的ジェット噴流

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Research Institution

Development of new imaging tehchnique for sub-mm VLBI

Principal Investigator

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Observational Studies of the active galactic nuclei with rapidly growing black holes by direct imaging using VLBI

Principal Investigator

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[Journal Article] The Relationships between Active Galactic Nucleus Power and Molecular Gas Mass within 500 pc of the Center of Elliptical Galaxies2024

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DOI

Data Source

[Journal Article] Cold gas in the heart of Perseus A2023

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DOI

Data Source

[Journal Article] The correlation between the 500?pc scale molecular gas masses and AGN powers for massive elliptical galaxies2023

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DOI

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[Journal Article] X-Ray Polarization Observations of BL Lacertae2022

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DOI

Data Source

[Journal Article] Collimation of the Relativistic Jet in the Quasar 3C 2732022

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DOI

Data Source

[Journal Article] Massive Molecular Gas as a Fuel Tank for Active Galactic Nuclei Feedback in Central Cluster Galaxies2022

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DOI

Data Source

[Journal Article] Diffuse Synchrotron Emission Associated with the Starburst in the Circumnuclear Disk of NGC 12752021

Author(s)

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NAGAI HIROSHI 永井洋

NAGAI Hiroshi 永井洋