Imai Hiroshi 今井裕

… Alternative Names

Researcher Number	70374155
Other IDs
External Links
Affiliation (Current)	2020: 鹿児島大学, 総合科学域総合教育学系, 准教授
Affiliation (based on the past Project Information) *help	2018 – 2019: 鹿児島大学, 総合科学域総合教育学系, 准教授 2015 – 2017: 鹿児島大学, 理工学域理学系, 准教授 2013 – 2014: 鹿児島大学, 理工学研究科, 准教授 2009 – 2010: Kagoshima University, 理工学研究科(理学系), 准教授 2007 – 2008: Kagoshima University, Facultyof Science, Associate Professor 2007: Kagoshima University, 鹿児島大学・理学部, 准教授 2004 – 2006: 鹿児島大学, 理学部, 助手
Review Section/Research Field	Principal Investigator Astronomy Except Principal Investigator Astronomy
Keywords	Principal Investigator 宇宙メーザー / 超長基線電波干渉法 / 年周視差計測 / 恒星質量放出 / 脈動変光星 / 恒星ジェット / 電波天文学 / 近巨星枝星 / 老星ジェット / 漸近巨星枝星 … More Except Principal Investigator VLBI / 相対VLBI / ブラックホール(進化, 連星) / ジェット / 活動銀河核 / 電波干渉計(VLBI, VERA, VSOP) / 質量降着 / プラックホール(進化,連星) / 電波干渉計(VLBI,VERA,VSOP) / ブラックホール(進化,連星) / 電波天文学 / 星形成 / 星間分子雲 / 原始星 / 水メーザー / 位置天文学 / 銀河天文学 / 原始 / Radio Astronomy / Star Formation / Molecular Cloud / Protostar / Water Maser / Astrometry / Galactic Astronomy / メーザー / 銀河中心 / 大気位相補償 / アンモニア分子 / Galactic Center / maser / phase-referncing VLBI / compensation of atmospheric phase fluctuations / dark matter Less

Exploration of synthesis and outward acceleration of circumstellar matter through simultaneous multiple-band high-resolution radio imagingPrincipal Investigator
- Principal Investigator
  
  IMAI Hiroshi
- Project Period (FY)
  2016 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
Large area sky surveys of hydroxyl maser sources and establishment of their high precision trigonometryPrincipal Investigator
- Principal Investigator
  
  IMAI Hiroshi
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
Surveys and high resolution imaging of jets from evolved starsPrincipal Investigator
- Principal Investigator
  
  IMAI Hiroshi
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
Search for binary black holes using interferometry
- Principal Investigator
  
  KAMENO Seiji
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
進化末期の恒星に見られるジェットの発現・成長過程の解明Principal Investigator
- Principal Investigator
  
  今井裕
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
Study of Galactic Center Region by Japanese VLBI Network
- Principal Investigator
  
  OMODAKA Tbshihiro
- Project Period (FY)
  2005 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Astronomy
- Research Institution
  Kagoshima University
Study of 3-D structure of Orion-Monoceros Molecular Cloud complex with high-precision VLBI
- Principal Investigator
  
  HIROTA Tomoya
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Astronomy
- Research Institution
  Nation Astronomical Observatory of Japan

[Book] Radio Astrometry towards the Nearby Universe with the SKA2016
- Author(s)
  Imai, Hiroshi, Burns, Ross A., Yamada, Yoshiyuki, Goda, Naoteru, Yano, Tahei, Orosz, Gabor, Niinuma, Kotaro, Bekki, Kenji
- Total Pages
  16
- Publisher
  eprint arXiv
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] RadioAstron probes the ultra-fine spatial structure in the H2O maser emission in the star forming region W49N2020
- Author(s)
  Shakhvorostova, N. N.; Sobolev, A. M.; Moran, J. M.; Alakoz, A. V.; Imai, H.; Avdeev, V. Y.
- Journal Title
  
  Advances in Space Research
  
  Volume: 65 Pages: 772-779
- DOI
  10.1016/j.asr.2019.05.011
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Accurate OH Maser Positions from the SPLASH Survey. III. The Final 96 deg^22020
- Author(s)
  Qiao, Hai-Hua; Breen, Shari L.; Gomez, Jose; F.; Dawson, J. R.; Walsh, Andrew J.; Green, James A.; Ellingsen, Simon P.; Imai, Hiroshi; Shen, Zhi-Qiang
- Journal Title
  
  The Astrophysical Journal Supplement Series
  
  Volume: 247 Pages: 5-5
- DOI
  10.3847/1538-4365/ab655d
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Shaping the Envelope of the Asymptotic Giant Branch Star W43A with a Collimated Fast Jet2020
- Author(s)
  Tafoya, Daniel; Imai, Hiroshi; Gomez, Jose; F.; Nakashima, Jun-ichi; Orosz, Gabor; Yung, Bosco H. K.
- Journal Title
  
  The Astrophysical Journal Letters
  
  Volume: 890
- DOI
  10.3847/2041-8213/ab70b8
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Development of a 22/43 GHz-band quasi-optical perforated plate and dual-band observation system of the Nobeyama 45 m telescope2020
- Author(s)
  Okada, Nozomi; Hashimoto, Ikumi; Kimura, Kimihiro; Manabe, Takeshi; Tokuda, Kazuki; Onishi, Toshikazu; Ogawa, Hideo; Imai, Hiroshi; Minamidani, Tetsuhiro
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 72 Pages: 7-7
- DOI
  10.1093/pasj/psz126
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Time variations of H2O and SiO masers in the proto-Planetary Nebula OH 231.8+4.22019
- Author(s)
  Kim, Jaeheon; Cho, S. -H.; Bujarrabal, V.; Imai, H.; Dodson, R.; Yoon, D. -H.; Zhang, B.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 488 Pages: 1427-1445
- DOI
  10.1093/mnras/stz1830
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Overall variation of the H2O masers around W Hydrae in 28 years2019
- Author(s)
  Imai, Hiroshi; Nakagawa, Akiharu; Takaba, Hiroshi
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 71 Pages: 126-126
- DOI
  10.1093/pasj/psz105
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Looking for new water-fountain stars2019
- Author(s)
  Uscanga, L.; Gomez, J. F.; Yung, B. H. K.; Imai, H.; Rizzo, J. R.; Suarez, O.; Miranda, L. F.; Trinidad, M. A.; Anglada, G.; Torrelles, J. M.
- Journal Title
  
  Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time. Proceedings of the International Astronomical Union
  
  Volume: 343 Pages: 527-528
- DOI
  10.1017/s1743921318007354
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Correlation between SiO v = 3 J = 1 → 0 maser excitation and the light curve of a long-period variable star2018
- Author(s)
  Oyadomari, M.; Imai, H.; Nagayama, T.i; Oyama, T.i; Matsumoto, N.; Nakashima, J.-I.; Cho, S.-H.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 70 Pages: 33-33
- DOI
  10.1093/pasj/psy021
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] A dearth of OH/IR stars in the Small Magellanic Cloud2018
- Author(s)
  Goldman, Steven R.; van Loon, Jacco Th.; Gomez, Jose, F.; Green, James A.; Zijlstra, Albert A.; Nanni, Ambra; Imai, Hiroshi; Whitelock, Patricia A.; Groenewegen, Martin A. T.; Oliveira, Joana M.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 473 Pages: 3835-3853
- DOI
  10.1093/mnras/stx2601
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Rapidly evolving episodic outflow in IRAS 18113-2503: clues to the ejection mechanism of the fastest water fountain2018
- Author(s)
  Orosz, G., Gomez, J.F., Imai, H., Tafoya, D., Torrelles, J.M., Burns, R.A., Frau, P., Guerrero, M.A, Miranda, L.F., Perez-Torres, M.A., Ramos-Larios, G., Rizzo, J.R., Suarez, O., Uscanga, L.,
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society: Letters
  
  Volume: 482
- DOI
  10.1093/mnrasl/sly177
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Sun-sized Water Vapor Masers in Cepheus A2018
- Author(s)
  Sobolev, A. M.; Moran, J. M.; Gray, M. D.; Alakoz, A.; Imai, H.; Baan, W. A.; Tolmachev, A. M.; Samodurov, V. A.; Ladeyshchikov, D. A.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 856
- DOI
  10.3847/1538-4357/aab096
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Astrometrically registered maps of H2O and SiO masers toward VX Sagittarii2018
- Author(s)
  Yoon, Dong-Hwan; Cho, Se-Hyung; Yun, Youngjoo; Choi, Yoon Kyung; Dodson, Richard; Rioja, Maria; Kim, Jaeheon; Imai, Hiroshi; Kim, Dongjin; Yang, Haneul; Byun, Do-Young
- Journal Title
  
  Nature Communications
  
  Volume: 9 Pages: 2534-2534
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Capabilities and prospects of the East Asia Very Long Baseline Interferometry Network2018
- Author(s)
  An, T.; Sohn, B. W.; Imai, H.
- Journal Title
  
  Nature Astronomy
  
  Volume: 2 Pages: 118-125
- DOI
  10.1038/s41550-017-0277-z
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Accurate OH Maser Positions. II. The Galactic Center Region2018
- Author(s)
  Qiao, H.-H., Walsh, A. J., Breen, S. L., Gomez, J. F., Dawson, J. R., Imai, H., Ellingsen, S. P., Ellingsen, S. P., Shen, Z.-Q.,
- Journal Title
  
  The Astrophysical Journal Supplement Series
  
  Volume: 239 Pages: 15-15
- DOI
  10.3847/1538-4365/aae580
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Do water fountains jets really indicate the onset of the morphological metamorphosis of circumstellar envelopes?2017
- Author(s)
  Yung, B.H.K., Nakashima, J.-I., Hsia, C.-H., Imai, H.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 465 Pages: 4482-4499
- DOI
  10.1093/mnras/stw2931
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Trigonometric distance and proper motions of H2O maser bowshocks in AFGL 51422017
- Author(s)
  Burns R. A.、Handa T.、Imai H.、Nagayama T.、Omodaka T.、Hirota T.、Motogi K.、van Langevelde H. J.、Baan W. A.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 467 Pages: 2367-2376
- DOI
  10.1093/mnras/stx216
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05398, KAKENHI-PROJECT-16H02167, KAKENHI-PROJECT-15H03646, KAKENHI-PROJECT-15K17613
[Journal Article] MultiView High Precision VLBI Astrometry at Low Frequencies2017
- Author(s)
  Rioja, M. J., Dodson, R., Orosz, G., Imai, H., Frey, S.
- Journal Title
  
  The Astronomical Journal
  
  Volume: 153
- DOI
  10.3847/1538-3881/153/3/105
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Astrometry of OH/IR Stars Using 1612 MHz Hydroxyl Masers. I. Annual Parallaxes of WX Psc and OH138.0+7.22017
- Author(s)
  Orosz, G.; Imai, H.; Dodson, R.; Rioja, M. J.; Frey, S.; Burns, R. A.; Etoka, S.; Nakagawa, A.; Nakanishi, H.; Asaki, Y.; Goldman, S. R.; Tafoya, D.
- Journal Title
  
  The Astronomical Journal
  
  Volume: 153 Pages: 1-13
- DOI
  10.3847/1538-3881/153/3/119
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167, KAKENHI-PROJECT-16K05306
[Journal Article] The wind speeds, dust content, and mass-loss rates of evolved AGB and RSG stars at varying metallicity2017
- Author(s)
  Goldman, S. R., van Loon, J. Th., Zijlstra, A. A., Green, J. A., Wood, P. R., Ambra, N., Imai, H., Whitelock, P. A., Matsuura, M., Groenewege, M. A., Gomez, J. F.
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 465 Pages: 403-433
- DOI
  10.1093/mnras/stw2708
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] SiO Masers around WX Psc Mapped with the KVN and VERA Array (KaVA)2016
- Author(s)
  Yun, Youngjoo; Cho, Se-Hyung; Imai, Hiroshi; and 59 coauthors
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 822
- DOI
  10.3847/0004-637x/822/1/3
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Molecular jet emission and a spectroscopic survey of S235AB2016
- Author(s)
  R. A. Burns, T. Handa, T. Hirota, K. Motogi, H. Imai and T. Omodaka
- Journal Title
  
  Astronomy and Astrophysics
  
  Volume: 586 A34 Pages: 1-5
- DOI
  10.1051/0004-6361/201527233
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17613, KAKENHI-PROJECT-25610043
[Journal Article] The first simultaneous mapping of four 7 mm SiO maser lines using the OCTAVE system2016
- Author(s)
  Oyama, T., Kono, Y., Suzuki, S., Kanaguchi, M., Nishikawa, T., Kawaguchi, N., Hirota, T., Nagayama, T., Kobayashi, H., Imai, H., Kuwahara, S., Kano, A., Oyadomari, M., Chong, S.-N.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 68
- DOI
  10.1093/pasj/psw099
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167, KAKENHI-PROJECT-15H03644
[Journal Article] Unusual Shock-excited OH maser emission in a Young Planetary Nebula2016
- Author(s)
  Qiao, H.-H., Walsh, A.J., Gómez, J.F., Imai, H., Green, J.A., Dawson, J.R., 8,9, Shen, Z.-Q., Ellingsen, S.P., Breen, Jones, P.A.,
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 817
- DOI
  10.3847/0004-637x/817/1/37
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Development of cross-correlation spectromery and the coherent structures of maser sources2016
- Author(s)
  Takefuji, K., Imai, H., Sekido, M.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 68
- DOI
  10.1093/pasj/psw077
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Measuring Magnetic Fields from Water Masers Associated with the Synchrotron Protostellar Jet in W3(H2O)2016
- Author(s)
  Goddi, C., Surcis, G., Moscadelli, L., Imai, H., Vlemmings, W.H.T., van Langevelde, H.J., Sanna, A.
- Journal Title
  
  Astronomy and Astrophysics
  
  Volume: 597
- DOI
  10.1051/0004-6361/201629321
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Journal Article] Sensitivity for 21 cm bispectrum from Epoch of Reionization2015
- Author(s)
  Shintaro Yoshiura, Hayato Shimabukuro, Keitaro Takahashi, Rieko Momose, Hiroyuki Nakanishi and Hiroshi Imai,
- Journal Title
  
  Monthly Notice of the Royal Astronomical Society
  
  Volume: 451 Pages: 266-274
- DOI
  10.1093/mnras/stv855
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26610048, KAKENHI-PROJECT-13J03015, KAKENHI-PROJECT-25610043, KAKENHI-PROJECT-26800104, KAKENHI-PROJECT-24340048
[Journal Article] Water Masers in W43A: Early Morphological Changes of a Future Planetary Nebula2015
- Author(s)
  Chong, S.-N., Imai, H., Diamond, P.J.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 67
- DOI
  10.1088/0004-637x/805/1/53
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Water Masers in W43A: Early Morphological Changes of a Future Planetary Nebula2015
- Author(s)
  Sze Ning Chong, Hiroshi Imai, Philip J. Diamond
- Journal Title
  
  Astrophysical Journal
  
  Volume: in press
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Outer rotation curve of the Galaxy with VERA. II. Annual parallax and proper motion of the star-forming region IRAS 21379+51062015
- Author(s)
  Nakanishi, H., Sakai, N., Kurayama, T., Matsuo, M., Imai, H., Burns, R.A., Ozawa, T., Honma, M.,
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 67 Pages: 68-68
- DOI
  10.1093/pasj/psv012
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25610043, KAKENHI-PROJECT-26800104
[Journal Article] A ‘Water Spout’ Maser Jet in the S235AB-MIR Massive Young Stellar Object2015
- Author(s)
  Burns, R.A., Imai, H., Handa, T., Omodaka, T., Nakagawa, A., Nagayama, T., Ueno, Y.
- Journal Title
  
  Monthly Notice of the Royal Astronomical Society
  
  Volume: 453
- DOI
  10.1093/mnras/stv1836
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Distance and Proper Motion Measurement of Water Masers in Sharpless 269 IRS 2w2014
- Author(s)
  Asaki, Y., Imai, H., Sobolev, A. M., Parfenov, S. Yu.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 787
- DOI
  10.1088/0004-637x/787/1/54
- NAID
  120005728605
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] SPLASH: the Southern Parkes Large-Area Survey in Hydroxyl - first science from the pilot region2014
- Author(s)
  Dowson, J. R., Fukui, Y. et al.
- Journal Title
  
  Monthly Notice of the Royal Astronomical Society
  
  Volume: 439 Pages: 1596-1614
- DOI
  10.1093/mnras/stu032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24224005, KAKENHI-PROJECT-25610043
[Journal Article] VERA and ALMA Observations of the H2O supermaser burst in Orion KL2014
- Author(s)
  Hirota, T., Tsuboi, M., Kurono, Y., Fujisawa, K., Honma, M., Kim, M.K., Imai, H., Yonekura, Y.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 66
- DOI
  10.1093/pasj/psu110
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Astrometry and Spatio-kinematics of H2O Masers in the Massive Star-forming Region NGC 6334I(North) with VERA2014
- Author(s)
  Chibueze, James O.; Omodaka, Toshihiro; Handa, Toshihiro; Imai, Hiroshi; Kurayama, Tomoharu; Nagayama, Takumi; Sunada, Kazuyoshi; Nakano, Makoto; Hirota, Tomoya; Honma, Mareki
- Journal Title
  
  Astrophysical Journal
  
  Volume: 784
- DOI
  10.1088/0004-637x/784/2/114
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] EXPLORATION OF A RELIC CIRCUMSTELLAR ENVELOPE IN THE "WATER FOUNTAIN" SOURCE IRAS 18286-09592013
- Author(s)
  Imai, Hiroshi; Nakashima, Jun-ichi; Yung, Bosco H. K.; Deguchi, Shuji; Kwok, Sun; Diamond, Philip J.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 47
- DOI
  10.1088/0004-637x/771/1/47
- NAID
  120005728602
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Distance and Proper Motion Measurement of the Red Supergiant, PZ Cas, in Very Long Baseline Interferometry H2O Maser Astrometry2013
- Author(s)
  Kusuno, K.; Asaki, Y.; Imai, H.; Oyama, T.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 774
- DOI
  10.1088/0004-637x/774/2/107
- NAID
  120005728604
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] The Spatiokinematical Structure of H2O and OH Masers in the "Water Fountain" Source IRAS 18460-01512013
- Author(s)
  Imai, Hiroshi; Deguchi, Shuji; Nakashima, Jun-ichi; Kwok, Sun; Diamond, Philip J.
- Journal Title
  
  Astrophysical Journal
  
  Volume: 773
- DOI
  10.1088/0004-637x/773/2/182
- NAID
  120005728603
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25610043
[Journal Article] Maser Properties of the Enigmatic IRAS Source 19312+19502011
- Author(s)
  Nakashima, Jun-ichi, Deguchi, Shuji, Imai, Hiroshi, Kemball, Athol, Lewis, B.Murray
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 728 Pages: 76-89
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Annual Parallax Distance and Kinematical Property of H_2O Masers in IRAS 19312+19502011
- Author(s)
  Imai H., Tafoya, D., Hirota, T., Honma, M., Miyaji, T.
- Journal Title
  
  Publ.Astron.Soc.Japan 63,No.1
  
  Pages: 81-87
- NAID
  10030384366
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Astrometry of H2O Masers in Nearby Star-Forming Regions with VERA-IV.L1448C2011
- Author(s)
  Hirota, Tomoya, Honma, Mareki, Imai, Hiroshi, Sunada, Kazuyoshi, Ueno, Yuji, Kobayashi, Hideyuki, Kawaguchi, Noriyuki
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 63 Pages: 1-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Measurement of the Distance and Proper Motions of the H_2O Masers in the Young Planetary Nebula K 3-352011
- Author(s)
  Tafoya, Daniel, Imai, Hiroshi, Gomez, Yolanda, Torrelles, Jose Maria, Patel, Nimesh, A., Anglada, Guilem., Miranda, Luis. F., Honma, Mareki, Hirota, Tomoya, Miyaji, Takeshi
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 63 Pages: 71-80
- NAID
  10030384331
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Astrometry of AGB Variables with VERA-Annual Parallax and the orbit of SY～Sculptoris in the Galaxy-2011
- Author(s)
  Nyu, Daisuke, Nakagawa, Akiharu, Matsui, Makoto, Imai, Hiroshi, et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 63 Pages: 63-70
- NAID
  10030384290
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Annual Parallax Distance and Kinematical Property of H_2O Masers in IRAS 19312+19502011
- Author(s)
  Imai, Hiroshi, Tafoya, Daniel, Hirota, Tomoya, Honma, Mareki, Miyaji, Takeshi
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 63 Pages: 81-87
- NAID
  10030384366
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Maser Properties of the Enigmatic IRAS Source 19312+19502011
- Author(s)
  Nakashima, J., Deguchi, S., Imai, H., Kemball, A., Lewis, B.M.
- Journal Title
  
  Astrophys.J. 728
  
  Pages: 76-89
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Measurement of the Distance and Proper Motions of the H_2O Masers in the Young Planetary Nebula K 3-352011
- Author(s)
  Tafoya, D., Imai, H., GOmez, Y., Torrelles, J.M., Patel, N.A., Anglada, G, Miranda, L.F., Honma, M., Hirota, T., Miyaji, T.
- Journal Title
  
  Publ.Astron.Soc.Japan 63,No.1
  
  Pages: 71-80
- NAID
  10030384331
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Astrometry of Galactic Star-Forming Region ON 2N with VERA : Estimation of the Galactic Constants2011
- Author(s)
  Ando, Kazuma, Nagayama, Takumi, Omodaka, Toshihiro, Handa, Toshihiro, Imai, Hiroshi, Nakagawa, Akiharu, Nakanishi, H., Honma, Mareki, Kobayashi, Hideyuki, Miyaji, Takeshi
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 63 Pages: 45-52
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] JVN mapping of SiO v=3 J=1-0 maser emission in W Hydrae2010
- Author(s)
  Hiroshi IMAI, Jun-ichi NAKASHIMA, Shuji DEGUCHI, AYA YAMAUCHI, Akiharu NAKAGAWA, Takumi NAGAYAMA
- Journal Title
  
  Publications of the Astronomical Society of Japan 62(in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Japanese VLBI Network Mapping of SiO_v=3 J=1-0 Maser Emission in W Hydrae2010
- Author(s)
  Imai, H., Nakashima, J., Deguchi, S., Yamauchi A., Nakagawa, A., Nagayama, T.
- Journal Title
  
  Publ.Astron.Soc.Japan 62,No.2
  
  Pages: 431-439
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] VERA observations of SiO maser emission from R Aquarii2010
- Author(s)
  Kamohara, R., Bujarrabal, V., Houma, M., Nakagawa, A., Matsumoto, N., Oyama, T., Imai, H., Shibata, K.M., Kobayashi, H., Sato, K., Ueno, Y.
- Journal Title
  
  Astronomy and Astrophysics A69
  
  Pages: 1-16
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] DISTANCE AND PROPER MOTION MEASUREMENT OF THE RED SUPERGIANT, SPERSEI, WITH VLBI H_2O MASER ASTROMETRY2010
- Author(s)
  Asaki, Yoshiharu, Deguchi, Shuji, Imai, Hiroshi, Hachisuka, Kazuya, Miyoshi, Makoto, Honma, Mareki
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 721 Pages: 266-277
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] CO J=3-2 Emission from the "Water Fountain" Sources IRAS 16342-3814 and IRAS 18286-09592009
- Author(s)
  Hiroshi IMAI, Jin-Hua He, Jun-ichi NAKASHIMA, Nobuharu UKITA, Shuji DEGUCHI, Nico KONING
- Journal Title
  
  Publications of the Astronomical Society of Japan 61
  
  Pages: 1365-1372
- NAID
  10026422026
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] CO J=3-2 Emission from the "Water Fountain" Sources IRAS 16342-3814 and IRAS 18286-09592009
- Author(s)
  Imai H., He, J.-H., Nakashima, J., Ukita, N., Deguchi, S., Koning, N.
- Journal Title
  
  Publ.Astron.Soc.Japan 61,No.6
  
  Pages: 1365-1372
- NAID
  10026422026
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Japanese VLBI Network Observations of SiO Masers in the M-Type Giant IRC -104142008
- Author(s)
  Ueda, K. Imai, H., et al.
- Journal Title
  
  Publications ofthe Astronomical Societyof Japan 60
  
  Pages: 1051-1056
- NAID
  10023954900
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] A Measurement of Proper Motions of SiO Maser Sources in the Galactic Center with the VLBA2008
- Author(s)
  Oyama, T., Miyoshi, M., Deguchi, S., Imai, H., Shen, Z. -Q.
- Journal Title
  
  Publication of the Astronomical Society of Japan 60
  
  Pages: 11-22
- NAID
  10023951160
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] A Bipolar Outflow of the M-Type Giant IRC -10414 Traced by H2O Maser Emission2008
- Author(s)
  Maeda, T., Imai, H., et al.
- Journal Title
  
  Publications of the Astronomical Societyof Japan 60
  
  Pages: 1057-1067
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] JVN observations of H_2O'masers around the evolved star IRAS 22480+60022008
- Author(s)
  Imai. H., Fujii, T., Omodaka, T., Deguchi, S
- Journal Title
  
  Publication of the Astronomical Society of Japan 60
  
  Pages: 55-62
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] First detection of CO lines in a water fountain star2008
- Author(s)
  He, J.-H., Imai, H., Hasegawa, T.I., Campbell, S.W., Nakashima, J.
- Journal Title
  
  Astron.Astrophys. 48
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] First detection of CO lines in a water fountain star2008
- Author(s)
  He, J. H., Imai, H., et al.
- Journal Title
  
  Astronomy and Astrophysics 488
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20540234
[Journal Article] Astrometry of H20 Masers in Nearby Star-Forming Regions with VERA-I. IRAS l6293-2422 in ρ Oph East2007
- Author(s)
  Imai. H. Nakashima K., et. al.
- Journal Title
  
  Publication of the Astronomical Society of Japan 59
  
  Pages: 1107-1113
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] A Pole-on Bipolar Outflow from the AGB Star WX Piscium2007
- Author(s)
  Inomata, N., Imai, H., Omodaka, T
- Journal Title
  
  Publication of the Astronomical Society of Japan 59
  
  Pages: 799-809
- NAID
  10023946682
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] The spatio-kinematical structure and distance of the pre-planetary nebula IRAS 19134+21312007
- Author(s)
  Imai H., Sahai, R., Morris M.
- Journal Title
  
  The Astrophysical Journal 669
  
  Pages: 424-434
- NAID
  120005728600
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] INWARD MOTIONS OF THE COMPACT SiO MASERS AROUND VX SAGITTARII2006
- Author(s)
  Chen, X., Shen, Z.-Q., Imai, H., Kamohara, R.
- Journal Title
  
  The Astrophysical Journal Vol.640
  
  Pages: 982-994
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] A Collimated Jet and an Infalling-Rotating Disk in G192.16-3.84 Traced by H2O Maser Emission2006
- Author(s)
  Imai H., Omodaka T., Hirota T., Umemoto T., Sorai K., Kondo T.
- Journal Title
  
  Publication of the Astronomical Society of Japan Vol.58,No.5
  
  Pages: 883-892
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] WATER MASER MOTIONS IN W3(OH) AND A DETERMINATION OF ITS DISTANCE2006
- Author(s)
  Hachisuka, Imai, H., (5番目) et al.
- Journal Title
  
  The Astrophysical Journal Vol.645
  
  Pages: 337-344
- Data Source
  KAKENHI-PROJECT-18740109
[Journal Article] The kinematics, physical condition and magnetic field of the W3 IRS5 region2005
- Author(s)
  H.Imai
- Journal Title
  
  Astronomy and Space Science 295
  
  Pages: 71-75
- Data Source
  KAKENHI-PROJECT-17340055
[Journal Article] A bioconically expanding flow in W43A traced by SiO maser emission2005
- Author(s)
  H.Imai
- Journal Title
  
  The Astrophysical Journal 622
- Data Source
  KAKENHI-PROJECT-17340055
[Journal Article] The kinematics of water masers in the stellar molecular outflow source, IRAS 19134+21312004
- Author(s)
  Imai, H. et al.
- Journal Title
  
  Astronomy and Astrophysics v.420
  
  Pages: 265-271
- Data Source
  KAKENHI-PROJECT-16540224
[Journal Article] The kinematics of water masers in the stellar molecular outflow source, IRAS 19134+21312004
- Author(s)
  Imai, H. et al.
- Journal Title
  
  Astronomy and Astrophysics 420
  
  Pages: 265-271
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540224
[Journal Article] The kinematics of water masers in the stellar molecular outfolw source, IRAS 19134+21312004
- Author(s)
  Imai, H. et al.
- Journal Title
  
  Astronomy and Astrophysics 420
  
  Pages: 265-271
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540224
[Presentation] 拡張相互相関分光法による 6.7GHz メタノールメーザー解析2019
- Author(s)
  岳藤一宏, 米倉覚則, 齋藤悠, 青木貴弘, 藤澤健太, 杉山孝一郎, 今井裕
- Organizer
  日本天文学会2019年秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山 45m 電波望遠鏡を使った AGB 星周縁の 12CO, 13CO 輝線の撮像2019
- Author(s)
  甘田渓, 深谷紗希子, 今井裕, 新永浩子, Peter Scicluna, Naomi Hirano, Francisca Kemper, Sundar Srinivasan, Sofia Wallstrom, Thavisha Dharmawardena and NESS Team
- Organizer
  日本天文学会2019年秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 「宇宙の間欠泉」から新たに出現した双極高速ジェットからの同時噴出ガス塊2019
- Author(s)
  今井裕, 宇野友理, 前山大地, 山口諒祐, 甘田渓, 濱江勇希, Ross Burns, Gabor Orosz, Jose Francisco Gomez, Daniel Tafoya, Lucero Uscanga
- Organizer
  日本天文学会2019年秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Current progress in ESTEMA and relevant EAVN commissioning2019
- Author(s)
  Hiroshi Imai
- Organizer
  12th East Asian VLBI Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Exploration of extended circumstellar matter around dying stars2018
- Author(s)
  Hiroshi Imai
- Organizer
  NOEMA/30m Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山45m電波望遠鏡における 22/43 GHz 帯同時観測評価2018
- Author(s)
  岡田望, 橋本育実, 保田大介, 木村公洋, 千葉正克, 真鍋武嗣, 大西利和, 小川英夫, 南谷哲宏, 宮本祐介, 宮澤和彦, 宮澤千栄子, 小山友明, 澤田-佐藤聡子, 岸本直子, 前山大地, 今井裕
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山45 m電波望遠鏡搭載同時観測用周波数フィルタの開発(II)2018
- Author(s)
  岡田望, 橋本育実, 保田大介, 高田勝太, 本間愛彩, 木村公洋, 千葉正克, 真鍋武嗣, 大西利和, 小川英夫, 南谷哲宏, 宮本祐介, 宮澤和彦, 宮澤千栄子, 小山友明, 岸本直子, 水窪耕兵, 澤田-佐藤聡子, 今井裕
- Organizer
  日本天文学会春季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 22/43 GHz帯フィルタによる野辺山45 m鏡二周波同時観測について　-フィルタ開発からコミッショニング観測まで-2018
- Author(s)
  岡田望 , 橋本育実 , 保田大介 , 木村公洋 , 千葉正克 , 真鍋武嗣 , 大西利和 , 小川英夫, 南谷哲宏 , 宮本祐介, 宮澤和彦, 宮澤千栄子, 小山友明, 澤田-佐藤聡子, 岸本直子, 前山大地 , 今井裕
- Organizer
  VLBI懇談会シンポジウム2018
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 22/43GHz 帯分離および43/86GHz 帯分離 Perforated Plate 型周波数フィルターの開発評価2018
- Author(s)
  木村公洋, 岡田望, 橋本育実, 小川英夫, 真鍋武嗣, 今井裕
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Status Reports on EAVN Evolved Stars Science Working Group and ESTEMA2018
- Author(s)
  Hiroshi Imai
- Organizer
  EAST ASIAN VLBI WORKSHOP 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山 45 m 電波望遠鏡搭載同時観測用周波数フィルタの開発2017
- Author(s)
  岡田望, 橋本育実, 高田勝太, 本間愛彩, 木村公洋, 千葉正克, 真鍋武嗣, 小川英夫, 大西利和, 南谷哲宏, 宮本祐介, 宮澤和彦, 宮澤千栄子, 岸本直子, 水窪耕兵, 澤田-佐藤聡子, 今井裕
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山 45 m 鏡搭載 20/40 GHz 帯同時観測用周波数フィルタの開発2017
- Author(s)
  岡田望, 橋本育実, 高田勝太, 本間愛彩, 高橋諒, 木村公洋, 千葉正克, 真鍋武嗣, 小川英夫, 大西利和, 南谷哲宏, 宮本祐介, 宮澤和彦, 齋藤正雄, 岸本直子, 水窪耕兵, 今井裕
- Organizer
  日本天文学会2017年春季年会
- Place of Presentation
  九州大学（福岡県福岡市）
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Towards decadal continuous viewing of circumstellar maser sources2017
- Author(s)
  Hiroshi Imai
- Organizer
  IAU Symposium 336
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Circumstellar, interstellar, and circumnuclear water masers as probes of fine structures of astrophysical objects2017
- Author(s)
  Hiroshi Imai
- Organizer
  Black Hole Astrophysics with VLBI: Past, Present, and Future
- Place of Presentation
  国立天文台三鷹（東京都三鷹市）
- Year and Date
  2017-03-27
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] 野辺山 45m 電波望遠鏡複周波数バンド同時観測プロジェクト (Hybrid Installa- tion Project in Nobeyama, Triple-band Oriented)2017
- Author(s)
  澤田-佐藤聡子, 今井裕, 半田利弘, 新永浩子, 水窪耕兵, 小川英夫, 真鍋武嗣, 木村公洋, 岡田望, 橋本育実, 南谷哲宏, 小山友明, 河野裕介, 砂田和良, 田村良明, 坂井伸行, 朝木義晴, 亀野誠二, 新沼浩太郎, 藤澤健太, 米倉覚則
- Organizer
  日本天文学会秋季年会
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] MultiView; a pilot study for precise VLBI astrometry at low frequencies using multiple calibrators2016
- Author(s)
  Gabor Orosz, Hiroshi Imai, Richard Dodson, Maria Rioja, Dieter Engeles, Sandra Etoka, Sandor Frey
- Organizer
  13th European VLBI Network Meeting
- Place of Presentation
  サンクトペテルブルク（ロシア）
- Year and Date
  2016-09-20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] SPLASH で検出された天の川銀河内 OH メーザー天体の統計的特徴2016
- Author(s)
  品野晃介, 今井裕 , Joanne Dawson, Andrew Walsh, ほか SPLASH チーム
- Organizer
  日本天文学会春季年会
- Place of Presentation
  首都大学東京（東京都八王子市）
- Year and Date
  2016-03-14
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Correlation of the relative SiO maser distributions with the stellar light curves2016
- Author(s)
  Miyako Oyadomari, Hiroshi Imai
- Organizer
  13th European VLBI Network Meeting
- Place of Presentation
  サンクトペテルブルク（ロシア）
- Year and Date
  2016-09-20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Radio Astrometry towards the Nearby Universe with the Square Kilometre Array2016
- Author(s)
  Hiroshi Imai, SKA-JP Astrometry Science Working Group
- Organizer
  Asia-Pacific Radio Science Conference 2016
- Place of Presentation
  ソウル（韓国）
- Year and Date
  2016-08-21
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Water fountain jets as seen by VLBI maser astrometry2016
- Author(s)
  Gabor Orosz, Hiroshi Imai, Daniel Tafoya, Jose Francisco Gomez, Olga Suarez, Ricardo Rizzo, Andres Perez Sanchez, Steve Goldman, Ross Burns
- Organizer
  SCHOCKS2016 Conference
- Place of Presentation
  トルン（ポーランド）
- Year and Date
  2016-09-14
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] "VLBI observations of circumstellar maser sources for exploration of stellar pulsation-driven shock waves "2016
- Author(s)
  Hiroshi Imai
- Organizer
  Blowing in the wind, Rencontres du Vietnam
- Place of Presentation
  クイニョン（ベトナム）
- Year and Date
  2016-08-07
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Water fountain jets as seen by VLBI maser astrometry2016
- Author(s)
  Gabor Orosz, Hiroshi Imai, Daniel Tafoya, Jose Francisco Gomez, Olga Suarez, Ricardo Rizzo, Andres Perez Sanchez, Steve Goldman, Ross Burns
- Organizer
  Blowing in the wind, Rencontres du Vietnam
- Place of Presentation
  クイニョン（ベトナム）
- Year and Date
  2016-08-07
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Planning VLBI in the SKA era2016
- Author(s)
  Hiroshi Imai, SKA-JP Astrometry Science Working Group
- Organizer
  Astronomy Development in Vietnam, Challenges and Opportunities
- Place of Presentation
  クイニョン（ベトナム）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] Wide-band VLBI observations of multiple SiO maser lines using the OCTAVE system2016
- Author(s)
  Hiroshi Imai, Tomoaki Oyama, Yusuke Kono, Tomoya Hirota, Takumi Nagayama, Syunsaki Suzuki, Masahiro Kanaguchi, Takashi Nishikawa, Noriyuki Kawaguchi, Hideyuki, Kobayashi (National Astronomical Observatory of Japan) Miyako Oyadomari, Sho Kuwahara, Amane Kano, Sze-Ning Chong
- Organizer
  Asia-Pacific Radio Science Conference 2016
- Place of Presentation
  ソウル（韓国）
- Year and Date
  2016-08-21
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02167
[Presentation] RadioAstron観測で検出された宇宙で最も輝度温度の高い水メーザー2016
- Author(s)
  今井裕, Alexey Alakoz, Andrey Sobolev, James M. Moran, Willem A. Baan, ほか
- Organizer
  日本天文学会春季年会
- Place of Presentation
  首都大学東京（東京都八王子市）
- Year and Date
  2016-03-16
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] SKA のよる電波源高精度位置計測に基づく天の川銀河・局所銀河群の動力学的構造の探求2015
- Author(s)
  今井裕, SKA-JP Astrometry sub-Working Group
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  甲南大学（兵庫県神戸市）
- Year and Date
  2015-09-11
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] The most compact H2O maser spots and their locations in W3 IRS52015
- Author(s)
  IMAI, H., ALAKOZ, A., SOBOLEV, A. M., MORAN, J. M., BAAN, W., VAN LANGEVELDE, H. J., HENKEL, C., KOSTENKO, Vladimir, RIZZO, Ricardo, GOMEZ, Jose; Francisco, COLOMER, Francisco, ELLINGSEN, Simon, PARFENOV, Sergey, RICHARDS, Anita M.S., VORONKOV, M., GRAY, M., BARTKIEWICZ, A., ASAKI, Y.
- Organizer
  Workshop on Results from High-Resolution VLBI
- Place of Presentation
  ボン（ドイツ）
- Year and Date
  2015-12-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] OH maser astrometry with the SKA2014
- Author(s)
  Hiroshi Imai
- Organizer
  Transformational Science with the SKA
- Place of Presentation
  南アフリカ、ステーレンボッシュ
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Consideration of OH maser astrometry with SKA2013
- Author(s)
  Hiroshi Imai
- Organizer
  SKA Science Workshop in East Asia 2013
- Place of Presentation
  名古屋大学
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Stellar Maser Astrophysics Explored with the East Asian VLBI Network2010
- Author(s)
  Hiroshi Imai
- Organizer
  8th East Asian Meeting on Astronomy
- Place of Presentation
  Hope Hotel(中国・上海市)
- Year and Date
  2010-10-14
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 惑星状星雲K3-35に付随する水メーザー源の年周視差計測2010
- Author(s)
  今井裕
- Organizer
  日本天文学会春季年会
- Place of Presentation
  広島大学
- Year and Date
  2010-03-24
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] GASKAP : The Galactic Australian SKA Pathfinder Survey2010
- Author(s)
  Hiroshi Imai, John Dickey, Steven Gibson, Jose Francisco G'omez, Paul Jones, Naomi M.McClure-Griffiths
- Organizer
  Asian-Pacific Radio Science Conference 2010
- Place of Presentation
  富山国際会議場(富山市)
- Year and Date
  2010-09-24
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] VLBI Mapping of Multiple Maser Lines with the East Asia VLBI Network2010
- Author(s)
  今井裕
- Organizer
  Asian-Pacific Radio Science Conference 2010
- Place of Presentation
  富山
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] VLBI Mapping of Multiple Maser Lines with the East Asia VLBI Network2010
- Author(s)
  Hiroshi Imai
- Organizer
  Asian-Pacific Radio Science Conference 2010
- Place of Presentation
  富山国際会議場(富山市)
- Year and Date
  2010-09-23
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] Astrometry from VERA to SKA2010
- Author(s)
  Hiroshi Imai
- Organizer
  Square Kilometer Array Japan Workshop 2010
- Place of Presentation
  国立天文台(三鷹市)
- Year and Date
  2010-11-04
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] JVN mapping of multi-transitions of SiO J=1-0 maser emission2010
- Author(s)
  Hiroshi Imai, Jun-ichi Nakashima, Shuji Deguchi, Akiharu Nakagawa, Takumi Nagayama, Aya Yamauchis
- Organizer
  East-Asia VLBI Network Workshop 2010
- Place of Presentation
  鹿児島大学(鹿児島市)
- Year and Date
  2010-04-22
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] VERAプロジェクトチーム"惑星状星雲K3-35にイ寸随する水メーザー源の年周視差計測2010
- Author(s)
  今井裕
- Organizer
  日本天文学会春季年会
- Place of Presentation
  広島
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 「宇宙の噴水」を含む後漸近巨星枝星水メーザー源のVERAアストロメトリ2009
- Author(s)
  今井裕, ほか
- Organizer
  日本天文学会春季年会
- Place of Presentation
  大阪府立大学
- Year and Date
  2009-03-26
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 一酸化珪素メーザーv=3 J=1-0輝線のVLBIによる初撮像2009
- Author(s)
  今井裕
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  山口大学
- Year and Date
  2009-09-15
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 一酸化珪素メーザー v=3 J=1-0輝線のVLBIによる初撮像2009
- Author(s)
  今井裕、出口修至、中川亜紀治、永山匠、山内彩
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  山口
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 「宇宙の噴水」天体からのCO J=3-2輝線の検出2008
- Author(s)
  今井裕, 出口修至, ほか
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  岡山理科大学
- Year and Date
  2008-09-11
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] OH maser envelopes of the 'water fountain' sources2008
- Author(s)
  今井裕
- Organizer
  9th European VLBI Network Symposium
- Place of Presentation
  イタリア・ボローニヤ
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] 「宇宙の噴水」天体からのCO J=3-2輝線の検出2008
- Author(s)
  今井裕、Jin-Hua He, 中島淳一、出口修至
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  岡山
- Data Source
  KAKENHI-PROJECT-20540234
[Presentation] Stellar molecular jets traced by water maser emission2007
- Author(s)
  Imai, Himshi
- Organizer
  East Asian Astronomer Meeting 2007
- Place of Presentation
  福岡国際会議場
- Data Source
  KAKENHI-PROJECT-18740109
[Presentation] Distance and kinematics of IRAS19134+2131 revealed by H_2O maser observations2007
- Author(s)
  Imai, H., Sahai, R., Morris, M.
- Organizer
  IAU Symposium 248
- Place of Presentation
  Shanghai Astronomical Observatory
- Data Source
  KAKENHI-PROJECT-18740109
[Presentation] NO3a 新しく見つかった2つの「宇宙の噴水」2007
- Author(s)
  今井裕, 出口修至, 中島淳一, Kwok, Sun
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  岐阜大学
- Data Source
  KAKENHI-PROJECT-18740109
[Presentation] VSOP-2 Key Science Program Proposal Deep Exploration of the Dynamics of the Milky Way Based on High Precision Water Maser Astrometry2007
- Author(s)
  Imai, H., and VSOP-2 Science Working Group
- Organizer
  Approaching Micro-aresecond Resolution with VSOP-2: Astrophysics and Technology
- Place of Presentation
  宇宙航空研究開発機構宇宙科学本部
- Data Source
  KAKENHI-PROJECT-18740109
[Presentation] Planning Large Programs of Stellar Maser Studies with KaVA
- Author(s)
  Se-Hyung Cho, Hiroshi Imai, KaVA Evolved Stars sub-Working Group
- Organizer
  12th Asia-Pacific Regional IAU Meeting
- Place of Presentation
  大田（韓国）
- Year and Date
  2014-08-19 – 2014-08-22
- Invited
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] OH masers in the Milky Way and Local Group galaxies in the SKA era
- Author(s)
  Etoka, S., Engels, D., Imai, H., Dawson, J., Ellingsen, S., Sjouwerman, L., van Langevelde, H.
- Organizer
  Advancing Astrophysics with the SKA
- Place of Presentation
  ナキソス（イタリア）
- Year and Date
  2014-06-09 – 2014-06-13
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Three-dimensional Tomography of the Galactic and Extragalactic Magnetoionic Medium with the SKA
- Author(s)
  Han, J. L., van Straten, W., Lazio, T. J. W., Deller, A., Sobey, C., Xu, J., Schnitzeler, D., Imai, H., Chatterjee, S., Macquart, J.-P., Kramer, M., Cordes, J.
- Organizer
  Advancing Astrophysics with the SKA
- Place of Presentation
  ナキソス（イタリア）
- Year and Date
  2014-06-09 – 2014-06-13
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Maser Astrometry with VLBI and the SKA
- Author(s)
  Green, J. A., van Lagnegelde, H. J., Brunthaler, A., Imai, H., Vlemmings, W. H. T., Ellingsen, S., Reid, M., Richards, A. M. S.
- Organizer
  Advancing Astrophysics with the SKA
- Place of Presentation
  ナキソス（イタリア）
- Year and Date
  2014-06-09 – 2014-06-13
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Very Long Baseline Interferometry with the SKA
- Author(s)
  Paragi, Z., Godfrey, L., Reynolds, C., Rioja, M., Deller, A., Zhang, B., Gurvits, L., Bietenholz, M., Szomoru, A., Bignall, H., Boven, P., Charlot, P., Dodson, R., Frey, S., Garrett, M., Imai, H., et al.
- Organizer
  Advancing Astrophysics with the SKA
- Place of Presentation
  ナキソス（イタリア）
- Year and Date
  2014-06-09 – 2014-06-13
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] Measuring Magnetic Fields Near and Far with the SKA via the Zeeman Effect
- Author(s)
  Robishaw, T., Green, J., A., Surcis, G., Vlemmings, W., Richards, A. M. S., Etoka, S., Bourke, T., Fish, V., Gray, M., Imai, H., Kramer, B., McBride, J., Momjian, E., Sarma, A., Zijlstra, A.
- Organizer
  Advancing Astrophysics with the SKA
- Place of Presentation
  ナキソス（イタリア）
- Year and Date
  2014-06-09 – 2014-06-13
- Data Source
  KAKENHI-PROJECT-25610043
[Presentation] SPLASH によるOHメーザー源探査の初期成果
- Author(s)
  今井裕、Joanne Dawson、Andrew Walsh、SPLASHチーム
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  山形大学（山形市）
- Year and Date
  2014-09-11 – 2014-09-13
- Data Source
  KAKENHI-PROJECT-25610043

1. OMODAKA Toshihiro (50129285)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. HIROTA Tomoya (10325764)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
3. ASAKI YOSHIHARU (00332148)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
4. KOBAYASHI Hideyuki (20211906)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. KAMENO Seiji (20270449)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. DEGUCHI Shuji (20197825)

# of Collaborated Projects: 1 results

# of Collaborated Products: 11 results
7. HONMA Mareki (20332166)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
8. NAKAGAWA Akiharu (60535631)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
9. NAKANISHI HIROYUKI (90419846)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
10. KAMEYA Osamu (70202025)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. HABE Tomoo (90180926)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. FUJISAWA Kenta (70311181)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. KAWAGUCHI Noriyuki (90214618)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 河野裕介 (00370106)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
15. 小川英夫 (20022717)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
16. 新永浩子 (20709589)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
17. NAKASHIMA Jun-ichi

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
18. UKITA Nobuharu

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
19. SAKAI Tsuyoshi

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. KWOK Sun

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. HE Jin-Hua

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
22. DIAMOND Philip J.

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. TAFOYA Daniel

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
24. TAKAHASHI Keitaro

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
25. OYAMA Tomoaki

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
26. SUZUKI SYUNSAKU

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
27. 元木業人

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
28. 福井康雄

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Imai Hiroshi 今井 裕

IMAI Hiroshi 今井 裕

Research Projects

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Co-Researchers

Exploration of synthesis and outward acceleration of circumstellar matter through simultaneous multiple-band high-resolution radio imagingPrincipal Investigator

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Large area sky surveys of hydroxyl maser sources and establishment of their high precision trigonometryPrincipal Investigator

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Surveys and high resolution imaging of jets from evolved starsPrincipal Investigator

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Search for binary black holes using interferometry

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進化末期の恒星に見られるジェットの発現・成長過程の解明Principal Investigator

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Study of Galactic Center Region by Japanese VLBI Network

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Study of 3-D structure of Orion-Monoceros Molecular Cloud complex with high-precision VLBI

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[Book] Radio Astrometry towards the Nearby Universe with the SKA2016

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[Journal Article] RadioAstron probes the ultra-fine spatial structure in the H2O maser emission in the star forming region W49N2020

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[Journal Article] Accurate OH Maser Positions from the SPLASH Survey. III. The Final 96 deg^22020

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[Journal Article] Shaping the Envelope of the Asymptotic Giant Branch Star W43A with a Collimated Fast Jet2020

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[Journal Article] Development of a 22/43 GHz-band quasi-optical perforated plate and dual-band observation system of the Nobeyama 45 m telescope2020

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[Journal Article] Time variations of H2O and SiO masers in the proto-Planetary Nebula OH 231.8+4.22019

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[Journal Article] Overall variation of the H2O masers around W Hydrae in 28 years2019

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Imai Hiroshi 今井裕

IMAI Hiroshi 今井裕