Yamashita Takuji 山下拓時

Researcher Number	20800759
Other IDs
Affiliation (based on the past Project Information) *help	2020 – 2023: 国立天文台, ハワイ観測所, 特任研究員
Review Section/Research Field	Principal Investigator Basic Section 16010:Astronomy-related Except Principal Investigator Basic Section 16010:Astronomy-related
Keywords	Principal Investigator すばる望遠鏡 / 電波銀河 / 超巨大ブラックホール / 銀河天文学 / 光赤外線 / 大規模データ / 赤外線 / 電波 / ブラックホール / 活動銀河核 / 銀河 … More Except Principal Investigator … More 多波長観測 / 電波銀河 / 可視光 / 電波 / 可視光線 / ブラックホール / すばる望遠鏡 / eROSITA / 赤外線 / X線 / 活動銀河核 / 超巨大ブラックホール Less

Unraveling the Nature of Radio Jets Governing the Formation of Massive GalaxiesPrincipal Investigator
- Principal Investigator
  
  Yamashita Takuji
- Project Period (FY)
  2021 – 2022
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  National Astronomical Observatory of Japan
Rapid supermassive black hole growth revealed by multi-wavelength surveys
- Principal Investigator
  
  Ichikawa Kohei
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  Waseda University
  Tohoku University

All 2023 2022 2021

All Journal Article Presentation

[Journal Article] Massive Molecular Gas Companions Uncovered by Very Large Array CO(1-0) Observations of the z = 5.2 Radio Galaxy TN J0924-22012023
- Author(s)
  Lee Kianhong、Kohno Kotaro、Hatsukade Bunyo、Egusa Fumi、Yamashita Takuji、Schramm Malte、Ichikawa Kohei、Imanishi Masatoshi、Izumi Takuma、Nagao Tohru、Toba Yoshiki、Umehata Hideki
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 944 Issue: 1 Pages: 35-35
- DOI
  10.3847/1538-4357/acaf58
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03632, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-20K14531, KAKENHI-PROJECT-17H06130, KAKENHI-PROJECT-23K22537, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-23K20240
[Journal Article] eROSITA Final Equatorial-Depth Survey (eFEDS). eFEDS X-ray view of WERGS radio galaxies selected by the Subaru/HSC and VLA/FIRST survey2023
- Author(s)
  Ichikawa Kohei、Yamashita Takuji、Merloni Andrea、Li Junyao、Liu Teng、Salvato Mara、Akiyama Masayuki、Arcodia Riccardo、Dwelly Tom、Chen Xiaoyang、Imanishi Masatoshi、Inayoshi Kohei、Kawaguchi Toshihiro、Kawamuro Taiki、et al.
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 672 Pages: A171-A171
- DOI
  10.1051/0004-6361/202244271
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K03632, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-19KK0076, KAKENHI-PROJECT-21H04494, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-21H04496, KAKENHI-PROJECT-23K22537, KAKENHI-PROJECT-23K25911
[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The most overdense region at <i>z</i> ? 5 inhabited by a massive radio galaxy2022
- Author(s)
  Uchiyama Hisakazu、Yamashita Takuji、Nagao Tohru、Ono Yoshiaki、Toshikawa Jun、Ichikawa Kohei、Kawakatu Nozomu、Kajisawa Masaru、Toba Yoshiki、Matsuoka Yoshiki、Kubo Mariko、Imanishi Masatoshi、Ito Kei、Kawaguchi Toshihiro、Lee Chien-Hsiu、Saito Tomoki
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 74 Issue: 6 Pages: 27-32
- DOI
  10.1093/pasj/psac075
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-21K03632, KAKENHI-PROJECT-22K03670, KAKENHI-PROJECT-22K14075, KAKENHI-PROJECT-21H04490, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-22KJ0730, KAKENHI-PROJECT-21K13968, KAKENHI-PROJECT-17H04830, KAKENHI-PROJECT-21H04494, KAKENHI-PROJECT-23K22537, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-20K14530
[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z = 0.3?1.42022
- Author(s)
  Uchiyama Hisakazu、Yamashita Takuji、Nagao Tohru、Ichikawa Kohei、Toba Yoshiki、Ishikawa Shogo、Kubo Mariko、Kajisawa Masaru、Kawaguchi Toshihiro、Kawakatu Nozomu、Lee Chien-Hsiu、Noboriguchi Akatoki
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 934 Issue: 1 Pages: 68-68
- DOI
  10.3847/1538-4357/ac77ee
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-22K14075, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-21K13968, KAKENHI-PROJECT-23K22537, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-20K14530
[Journal Article] Detection of Extended Millimeter Emission in the Host Galaxy of 3C 273 and Its Implications for QSO Feedback via High Dynamic Range ALMA Imaging2022
- Author(s)
  Shinya Komugi, Yoshiki Toba, Yoshiki Matsuoka, Toshiki Saito, Takuji Yamashita
- Journal Title
  
  Astrophysical Journal
  
  Volume: 930 Issue: 1 Pages: 1-7
- DOI
  10.3847/1538-4357/ac616e
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K04015, KAKENHI-PROJECT-21K13968, KAKENHI-PROJECT-17H04830, KAKENHI-PROJECT-21H04494, KAKENHI-PROJECT-23K22537
[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed Out by High-z Radio Galaxies at z ? 42022
- Author(s)
  Uchiyama Hisakazu、Yamashita Takuji、Toshikawa Jun、Kashikawa Nobunari、Ichikawa Kohei、Kubo Mariko、Ito Kei、Kawakatu Nozomu、Nagao Tohru、Toba Yoshiki、Ono Yoshiaki、Harikane Yuichi、Imanishi Masatoshi、Kajisawa Masaru、Lee Chien-Hsiu、Liang Yongming
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 926 Issue: 1 Pages: 76-76
- DOI
  10.3847/1538-4357/ac441c
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04490, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-19K03918, KAKENHI-PROJECT-21K03632, KAKENHI-PROJECT-21K13968, KAKENHI-PROJECT-21K03628, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-19K14759
[Journal Article] Extreme Nature of Four Blue-excess Dust-obscured Galaxies Revealed by Optical Spectroscopy2022
- Author(s)
  Noboriguchi Akatoki, Nagao Tohru, Toba Yoshiki, Ichikawa Kohei, Kajisawa Masaru, Kato Nanako, Kawaguchi Toshihiro, Matsuhara Hideo, Matsuoka Yoshiki, Onishi Kyoko, Onoue Masafusa, Tamada Nozomu, Terao Koki, Terashima Yuichi, Ueda Yoshihiro, Yamashita Takuji
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 941 Issue: 2 Pages: 195-195
- DOI
  10.3847/1538-4357/aca403
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-20K04014, KAKENHI-PROJECT-17H04830, KAKENHI-PROJECT-23K22537, KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-20H01946
[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IV. Rapidly Growing (Super)Massive Black Holes in Extremely Radio-loud Galaxies2021
- Author(s)
  Ichikawa Kohei、Yamashita Takuji、Toba Yoshiki、Nagao Tohru、Inayoshi Kohei、Charisi Maria、He Wanqiu、Wagner Alexander Y. et al.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 921 Issue: 1 Pages: 51-51
- DOI
  10.3847/1538-4357/ac1b26
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H01939, KAKENHI-PROJECT-20H01946, KAKENHI-PROJECT-19K03862, KAKENHI-PROJECT-20K14529, KAKENHI-PROJECT-20H01949, KAKENHI-PROJECT-19K14759
[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): Co-evolution of Radio Galaxies and the Surrounding Galaxies at Various Cosmic Epochs2023
- Author(s)
  Hisakazu Uchiyama, Takuji Yamashita, et al.
- Organizer
  Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] The Nature of New z~4 High-z Radio Galaxies from HSC-SSP and VLA/FIRST2023
- Author(s)
  Yuta Yamamoto, Tohru Nagao, Hisakazu Uchiyama, Takuji Yamashita, Yoshiki Toba, Mariko Kubo, Akatoki Noboriguchi, Yoshiaki Ono, Yuichi Harikane, and the WERGS team
- Organizer
  Subaru Users Meeting FY2022
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] 高赤方偏移電波銀河の分光追観測2022
- Author(s)
  山下拓時, WERGS コラボレーション
- Organizer
  日本天文学会2022年秋季年会
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] GREX-PLUSによる電波銀河観測2022
- Author(s)
  山下拓時
- Organizer
  GREX-PLUS サイエンス検討会 FY2021
- Invited
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): z = 0.3 － 1.4 の電波銀河周辺環境の統計的理解2022
- Author(s)
  内山久和 (愛媛大), 山下拓時 (国立天文台), 長尾透, 久保真理子, 鍛冶澤賢 (愛媛大), 市川幸平, 登口暁 (東北大), 鳥羽儀樹 (京都大), 石川将吾 (国立天文台), 川口俊宏 (尾道大), 川勝望 (呉高専), Chien-Hsiu Lee (NOIRLab), and WERGS members
- Organizer
  日本天文学会2022年春季年会
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] WERGS project status and follow-up observations2022
- Author(s)
  Takuji Yamashita, Wanqiu He, Kohei Ichikawa, Bovornpratch Vijarnwannaluk, Hisakazu Uchiyama, Tohru Nagao, Yuta Yamamoto, and WERGS collaboration
- Organizer
  Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] 赤方偏移 4 における遠方電波銀河の探査と性質調査2022
- Author(s)
  山本優太, 長尾透, 久保真理子, 内山久和, 山下拓時, 鳥羽儀樹, 登口暁, 播金優一, 小野宜昭
- Organizer
  日本天文学会2022年秋季年会
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): z = 4.72 の電波銀河周辺環境2022
- Author(s)
  内山久和, 山下拓時, 長尾透, 鍛冶澤賢, 松岡良樹, 久保真理子, 小野宜昭, 利川潤, 市川幸平, 川勝望, 鳥羽儀樹, 今西昌俊, 伊藤慧, 川口俊宏, Chien-Hsiu Lee, 斎藤智樹
- Organizer
  日本天文学会2022年秋季年会
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] A new z~4 radio galaxy survey with HSC-SSP and VLA/FIRST2022
- Author(s)
  Yuta Yamamoto, Tohru Nagao, Kubo Mariko, Hisakazu Uchiyama, Takuji Yamashita, Yoshiki Toba, Akatoki Noboriguchi, Yuichi Harikane, Yoshiaki Ono
- Organizer
  Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] Radio galaxy catalog in the Subaru/HSC Joint catalog field2022
- Author(s)
  Kohei Ichikawa, Itsna Khoirul Fitriana, Takuji Yamashita, Hikaru Fukuchi, Masayuki Akiyama, Yu-Yen Chang, Andrew Battisti, Elisabete da Cunha, WERGS team, HSC-Joint catalog team
- Organizer
  Tracing the SMBH growth: outlook beyond the HSC-SSP, and future collaborations
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): z ~ 4 の暗い電波銀河周辺環境の統計的理解2021
- Author(s)
  内山久和 (愛媛大), 山下拓時 (国立天文台), 利川潤 (Bath univ.), 柏川伸成 (東京大), 市川幸平 (東北大), 久保真理子, 長尾透, 鍛冶澤賢 (愛媛大), 鳥羽儀樹 (京都大), 伊藤慧, Yongming Liang (総研大), 川勝望 (呉高専), 小野宜昭, 播金優一 (宇宙線研), 今西昌俊 (国立天文台), Chien-Hsiu Lee (NOIRLab)
- Organizer
  日本天文学会2021年秋季年会
- Data Source
  KAKENHI-PROJECT-21K13968
[Presentation] Radio galaxies in the early universe found in Subaru HSC-SSP2021
- Author(s)
  Takuji Yamashita
- Organizer
  ALMA-J Seminar
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13968

1. Ichikawa Kohei (40756293)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
2. KAWAKATU Nozomu

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
3. NAGAO Toru

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
4. 今西昌俊

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
5. 小麥真也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
6. 久保真理子

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
7. 内山久和

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
8. 柏川伸成

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
9. 利川潤

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Yamashita Takuji 山下 拓時

Research Projects

Research Products

Co-Researchers

Unraveling the Nature of Radio Jets Governing the Formation of Massive GalaxiesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Rapid supermassive black hole growth revealed by multi-wavelength surveys

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Massive Molecular Gas Companions Uncovered by Very Large Array CO(1-0) Observations of the z = 5.2 Radio Galaxy TN J0924-22012023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] eROSITA Final Equatorial-Depth Survey (eFEDS). eFEDS X-ray view of WERGS radio galaxies selected by the Subaru/HSC and VLA/FIRST survey2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IX. The most overdense region at <i>z</i> ? 5 inhabited by a massive radio galaxy2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z = 0.3?1.42022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Detection of Extended Millimeter Emission in the Host Galaxy of 3C 273 and Its Implications for QSO Feedback via High Dynamic Range ALMA Imaging2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VI. Distant Filamentary Structures Pointed Out by High-z Radio Galaxies at z ? 42022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Extreme Nature of Four Blue-excess Dust-obscured Galaxies Revealed by Optical Spectroscopy2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). IV. Rapidly Growing (Super)Massive Black Holes in Extremely Radio-loud Galaxies2021

Author(s)

Journal Title

DOI

Data Source

[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): Co-evolution of Radio Galaxies and the Surrounding Galaxies at Various Cosmic Epochs2023

Author(s)

Organizer

Data Source

[Presentation] The Nature of New z~4 High-z Radio Galaxies from HSC-SSP and VLA/FIRST2023

Author(s)

Organizer

Data Source

[Presentation] 高赤方偏移電波銀河の分光追観測2022

Author(s)

Organizer

Data Source

[Presentation] GREX-PLUSによる電波銀河観測2022

Author(s)

Organizer

Data Source

[Presentation] A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS): z = 0.3 － 1.4 の電波銀河周辺環境の統計的理解2022

Author(s)

Organizer

Data Source

[Presentation] WERGS project status and follow-up observations2022

Author(s)

Organizer

Data Source

Yamashita Takuji 山下拓時