OHSAWA Ryou 大澤亮

… Alternative Names

Ohsawa Ryou 大澤亮

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Researcher Number	40748696
Other IDs	https://orcid.org/0000-0001-5797-6010
Affiliation (Current)	2024: 国立天文台, JASMINEプロジェクト, 助教
Affiliation (based on the past Project Information) *help	2023: 国立天文台, JASMINEプロジェクト, 助教 2018 – 2021: 東京大学, 大学院理学系研究科(理学部), 特任助教
Review Section/Research Field	Principal Investigator Basic Section 17010:Space and planetary sciences-related Except Principal Investigator Basic Section 16010:Astronomy-related
Keywords	Principal Investigator 分光学 / 惑星間塵 / 動画天文学 / 広視野カメラ / 広視野動画観測 / 惑星間空間ダスト / 流星 Except Principal Investigator 始原天体 / 広視野高速CMOSカメラ / 高速CMOSカメラ … More / 重ね合わせ法 / 高速移動天体 / 太陽系小天体 / 地球接近天体 Less

Elucidation of the origin and evolution of small near-Earth objects by wide-field high-speed survey and immediate follow-up observations
- Principal Investigator
  
  奥村真一郎
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  Research for Spaceguard Center, Japan Spaceguard Association
Investigation of Compositions of Insterplanetary Dust by Spectroscopic Video ObservationPrincipal Investigator
- Principal Investigator
  
  Ohsawa Ryou
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 17010:Space and planetary sciences-related
- Research Institution
  The University of Tokyo

All 2024 2023 2020 2019 2018

All Journal Article Presentation

[Journal Article] Intermediate-luminosity Type IIP SN 2021gmj: a low-energy explosion with signatures of circumstellar material2024
- Author(s)
  Yuta Murai, Masaomi Tanaka, Miho Kawabata et al. (including Kohki Uno)
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 528 Issue: 3 Pages: 4209-4227
- DOI
  10.1093/mnras/stae170
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22KJ1986, KAKENHI-PROJECT-22K03676, KAKENHI-PROJECT-23K03469, KAKENHI-PROJECT-21K13966, KAKENHI-PROJECT-20H00174, KAKENHI-PROJECT-20H00179, KAKENHI-PROJECT-21H04491
[Journal Article] A search for extragalactic fast optical transients in the Tomo-e Gozen high-cadence survey2023
- Author(s)
  Oshikiri Kakeru、Tanaka Masaomi、Tominaga Nozomu、Morokuma Tomoki、Takahashi Ichiro、Tampo Yusuke、Hamidani Hamid、Arima Noriaki、Arimatsu Ko、Kasuga Toshihiro、Kobayashi Naoto、Kondo Sohei、Mori Yuki、Niino Yuu、Ohsawa Ryou、Okumura Shin-ichiro、Sako Shigeyuki、Takahashi Hidenori
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 527 Issue: 1 Pages: 334-345
- DOI
  10.1093/mnras/stad3184
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03469, KAKENHI-PROJECT-22KJ1698, KAKENHI-PROJECT-20H00179, KAKENHI-PROJECT-21H04491, KAKENHI-PROJECT-23H00127
[Journal Article] Evidence for a rapid decrease of Pluto’s atmospheric pressure revealed by a stellar occultation in 20192020
- Author(s)
  K. Arimatsu, G. L. Hashimoto, M. Kagitani, T. Sakanoi, Y. Kasaba, R. Ohsawa, S. Urakawa
- Journal Title
  
  Astronomy & Astrophysics
  
  Volume: 638 Pages: L5-L5
- DOI
  10.1051/0004-6361/202037762
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13599, KAKENHI-PROJECT-18K13606
[Journal Article] Relationship between radar cross section and optical magnitude based on radar and optical simultaneous observations of faint meteors2020
- Author(s)
  R. Ohsawa, A. Hirota, K. Morita, S. Abe, D. Kastinen, J. Kero, C. Szasz, Y. Fujiwara, T. Nakamura, K. Nishimura, S. Sako, J. Watanabe, et al.
- Journal Title
  
  Planetary and Space Science
  
  Volume: 194 Pages: 105011-105011
- DOI
  10.1016/j.pss.2020.105011
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599, KAKENHI-PLANNED-17H06363, KAKENHI-PROJECT-16H06341, KAKENHI-PROJECT-18H01272, KAKENHI-PROJECT-18K13606, KAKENHI-PROJECT-20H00179, KAKENHI-ORGANIZER-17H06357, KAKENHI-PROJECT-18H01261, KAKENHI-PROJECT-23K20254
[Journal Article] New Constraint on the Atmosphere of (50000) Quaoar from a Stellar Occultation2019
- Author(s)
  Ko Arimatsu, Ryou Ohsawa, George L. Hashimoto, Seitaro Urakawa, Jun Takahashi, Miyako Tozuka, Yoichi Itoh, Misato Yamashita, et al.
- Journal Title
  
  The Astronomical Journal
  
  Volume: 158 Issue: 6 Pages: 236-236
- DOI
  10.3847/1538-3881/ab5058
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599, KAKENHI-PROJECT-18K13606, KAKENHI-PLANNED-17H06363, KAKENHI-PUBLICLY-18H04575, KAKENHI-PROJECT-16H06341, KAKENHI-PROJECT-16H02158, KAKENHI-PROJECT-18H01261, KAKENHI-PROJECT-18H01272, KAKENHI-ORGANIZER-17H06357, KAKENHI-PLANNED-18H05440
[Journal Article] An optical search for transients lasting a few seconds2019
- Author(s)
  Michael W. Richmond, Masaomi Tanaka, Tomoki Morokuma, Shigeyki Sako, Ryou Ohsawa, Noriaki Arima, Nozomu Tominaga, Mamoru Doi, et al.
- Journal Title
  
  Publications of the Astronomical Society of Japan
  
  Volume: 72 Issue: 1 Pages: 3-3
- DOI
  10.1093/pasj/psz120
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599, KAKENHI-PROJECT-18K13606, KAKENHI-PLANNED-17H06363, KAKENHI-PUBLICLY-18H04575, KAKENHI-PROJECT-16H06341, KAKENHI-PROJECT-16H02158, KAKENHI-PROJECT-18H01261, KAKENHI-PROJECT-18H01272, KAKENHI-PROJECT-17J01884, KAKENHI-ORGANIZER-17H06357, KAKENHI-PLANNED-18H05440
[Journal Article] Luminosity function of faint sporadic meteors measured with a wide-field CMOS mosaic camera Tomo-e PM2019
- Author(s)
  Ohsawa Ryou, Toshikazu Shigeyama (26/37) et al.
- Journal Title
  
  Planetary and Space Science
  
  Volume: 165 Pages: 281-292
- DOI
  10.1016/j.pss.2018.09.006
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16K05287, KAKENHI-PROJECT-17K05381, KAKENHI-PROJECT-17K05395, KAKENHI-PROJECT-18K13599, KAKENHI-PROJECT-18K13606, KAKENHI-PROJECT-18H01261, KAKENHI-PROJECT-18H01272, KAKENHI-PROJECT-15H05440, KAKENHI-PUBLICLY-18H04575, KAKENHI-PROJECT-16H02158, KAKENHI-PLANNED-17H06363
[Presentation] Near-Earth Object observation activities Near-Earth Object observation activities for Planetary Defense in Japan2023
- Author(s)
  Shin-ichiro Okumura, Kota Nishiyama, Seitaro Urakawa, Tokuhiro Nimura, Tomoko Fujiwara, Kazuko Ando, Daisuke Kuroda, Ryou Ohsawa, Jin Beniyama, Shigeyuki Sako, Toshifumi Yanagisawa
- Organizer
  Asia-Pacific Regional IAU Meeting 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K03469
[Presentation] 東京大学木曽シュミット望遠鏡搭載広視野動画カメラTomo-e Gozenと地球接近小惑星探索2023
- Author(s)
  高橋英則、土居守、小林尚人、酒向重行、大澤亮、新納悠、瀧田怜、近藤荘平、森由貴、田中雅臣、諸隈智貴、冨永望、池田思朗、山本泰生、奥村真一郎、紅山仁、津々木里咲
- Organizer
  2023年度日本地球惑星科学連合大会
- Data Source
  KAKENHI-PROJECT-23K03469
[Presentation] 美星スペースガードセンターを中心とするNEO観測活動2023
- Author(s)
  奥村真一郎, 西山広太, 浦川聖太郎, 二村徳宏, 藤原智子, 黒田大介, 安藤和子, 柳沢俊史, 大澤亮
- Organizer
  2023年度日本地球惑星科学連合大会
- Data Source
  KAKENHI-PROJECT-23K03469
[Presentation] 木曽観測所Tomo-e Gozenと重ね合わせによる微小地球接近天体の観測2023
- Author(s)
  奥村真一郎, 柳沢俊史, 大澤亮, 酒向重行, 紅山仁, 高橋英則, 吉田二美, 吉川真, 浦川聖太郎, 阿部新助
- Organizer
  第67回宇宙科学技術連合講演会
- Data Source
  KAKENHI-PROJECT-23K03469
[Presentation] Near-Earth Asteroid Survey with Tomo-e Gozen2020
- Author(s)
  Ryou Ohsawa, Jin Beniyama, Shigeyuki Sako, Seitaro Urakawa, Shin-ichiro Okumura, Jun-ichi Watanabe, Makoto Yoshikawa, Tomoki Morokuma
- Organizer
  JpGU-AGU Joint Meeting 2020: Virtual
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] 京都大学 MU レーダと東京大学木曽観測所 {Tomo-e~Gozen} による微光流星同時観測2019
- Author(s)
  大澤亮, 弘田旭, 森田晃平, 阿部新助, Daniel Kastinen, Johan Kero, 藤原康徳, 中村卓司, 西村耕司, 酒向重行, 渡部潤一
- Organizer
  日本惑星科学会 2019 年秋季講演会
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] Radar and optical simultaneous observations of faint meteors with MU radar and Tomo-e Gozen2019
- Author(s)
  Ryou Ohsawa, Akira Hirota, Shinsuke Abe, Daniel Kastinen, Johan Kero, Shigeyuki Sako, Jun-ichi Watanabe
- Organizer
  Japan Geoscience Union Meeting 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] Radar and optical simultaneous observations of faint meteors with MU radar and Tomo-e Gozen2019
- Author(s)
  Ryou Ohsawa, Akira Hirota, Kohei Morita, Shinsuke Abe, Daniel Kastinen, Johan Kero, Takuji Nakamura, Koji Nishimura, Shigeyuki Sako, and Jun-ichi Watanabe
- Organizer
  Meteoroids 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] Optical Observations of Faint Meteors with a Wide-Field CMOS Camera Tomo-e Gozen2018
- Author(s)
  Ryou Ohsawa, Shigeyuki Sako, Fumihiko Usui, Yuki Sarugaku, Mikiya Sato, Yasunori Fujiwara, Takafumi Ootsubo, Shinsuke Abe, Akira Hirota, Ko Arimatsu, Toshihiro Kasuga, Jun-ichi Watanabe, and Tomo-e Gozen Science Group
- Organizer
  45th Annual European Meeting on Atmospheric Studies by Optical Methods
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] All Sky Survey and Meteor Observations with Tomo-e Gozen2018
- Author(s)
  Ryou Ohsawa
- Organizer
  9th Workshop on Catastrophic Disruption in the Solar System
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] 東京大学木曽観測所広視野 CMOS モザイクカメラ Tomo-e Gozen による人工天体の観測2018
- Author(s)
  大澤亮, 酒向重行, 小島悠人, 奥村真一郎, 浦川聖太郎, 柳澤俊史, 吉川真, Tomo-e Gozen サイエンスグループ
- Organizer
  第 8 回スペースデブリワークショップ
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13599
[Presentation] Video Observations of Faint Meteors with Tomo-e PM2018
- Author(s)
  Ryou Ohsawa, et al.
- Organizer
  日本地球惑星科学連合 2018 年大会
- Data Source
  KAKENHI-PROJECT-18K13599

1. 奥村真一郎 (40344270)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
2. 柳沢俊史 (20371106)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
3. 酒向重行 (90533563)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
4. 吉田二美 (20399306)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 吉川真 (70311173)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
6. 茂山俊和

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

OHSAWA Ryou 大澤 亮

Ohsawa Ryou 大澤 亮

Research Projects

Research Products

Co-Researchers

Elucidation of the origin and evolution of small near-Earth objects by wide-field high-speed survey and immediate follow-up observations

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Investigation of Compositions of Insterplanetary Dust by Spectroscopic Video ObservationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Intermediate-luminosity Type IIP SN 2021gmj: a low-energy explosion with signatures of circumstellar material2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A search for extragalactic fast optical transients in the Tomo-e Gozen high-cadence survey2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Evidence for a rapid decrease of Pluto’s atmospheric pressure revealed by a stellar occultation in 20192020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Relationship between radar cross section and optical magnitude based on radar and optical simultaneous observations of faint meteors2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] New Constraint on the Atmosphere of (50000) Quaoar from a Stellar Occultation2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] An optical search for transients lasting a few seconds2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Luminosity function of faint sporadic meteors measured with a wide-field CMOS mosaic camera Tomo-e PM2019

Author(s)

Journal Title

DOI

Data Source

[Presentation] Near-Earth Object observation activities Near-Earth Object observation activities for Planetary Defense in Japan2023

Author(s)

Organizer

Data Source

[Presentation] 東京大学木曽シュミット望遠鏡搭載広視野動画カメラTomo-e Gozenと地球接近小惑星探索2023

Author(s)

Organizer

Data Source

[Presentation] 美星スペースガードセンターを中心とするNEO観測活動2023

Author(s)

Organizer

Data Source

[Presentation] 木曽観測所Tomo-e Gozenと重ね合わせによる微小地球接近天体の観測2023

Author(s)

Organizer

Data Source

[Presentation] Near-Earth Asteroid Survey with Tomo-e Gozen2020

Author(s)

Organizer

Data Source

[Presentation] 京都大学 MU レーダと東京大学木曽観測所 {Tomo-e~Gozen} による微光流星同時 観測2019

Author(s)

Organizer

Data Source

[Presentation] Radar and optical simultaneous observations of faint meteors with MU radar and Tomo-e Gozen2019

Author(s)

Organizer

Data Source

OHSAWA Ryou 大澤亮

Ohsawa Ryou 大澤亮

[Presentation] 京都大学 MU レーダと東京大学木曽観測所 {Tomo-e~Gozen} による微光流星同時観測2019