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2021 Fiscal Year Annual Research Report

Study of nucleosynthesis in neutron star merger with optical-infrared follow-up observations of gravitational wave sources

Planned Research

Project AreaGravitational wave physics and astronomy: Genesis
Project/Area Number 17H06363
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

吉田 道利  国立天文台, ハワイ観測所, 教授 (90270446)

Co-Investigator(Kenkyū-buntansha) 冨永 望  国立天文台, 科学研究部, 教授 (00550279)
関口 雄一郎  東邦大学, 理学部, 准教授 (50531779)
川端 弘治  広島大学, 宇宙科学センター, 教授 (60372702)
伊藤 洋一  兵庫県立大学, 自然・環境科学研究所, 教授 (70332757)
田中 雅臣  東北大学, 理学研究科, 准教授 (70586429)
酒向 重行  東京大学, 大学院理学系研究科(理学部), 准教授 (90533563)
Project Period (FY) 2017-06-30 – 2022-03-31
Keywords光学赤外線天文学 / 重力波天体 / 突発天体 / 中性子星 / 元号制
Outline of Annual Research Achievements

観測的研究では、以下の活動を行った。重力波源S190510gに対し、すばる望遠鏡Hyper Suprime-Cam(HSC)を用いて行った追観測について査読論文としてまとめ出版した。木曽Tomo-e Gozenのサーベイデータから突発天体を探し出す際に必要となる広い天域のリファレンス画像セットの整備を実施し、重力波検出器からのアラートを自動処理するソフトウェアの高速化と高精度化の改修をおこなった。チベット阿里観測所内に設置したHinOTORI望遠鏡の試験観測を継続した。試験観測で得られた観測装置の結像性能や現地の大気吸収係数などの成果を投稿論文とし公表した。なゆた望遠鏡の可視光分光器MALLSの高分散分光モードで取得できる波長域を従来の約2倍に広げた。また広視野グリズム分光器に高効率のVPHグリズムを取り付けた。
さらに、第4期重力波観測(2022年12月開始予定)に向けて、HSCのデータ解析パイプラインの最新版を用いたデータ解析システムの構築を行った。また、かなた望遠鏡における自動観測・測光システムの安定化を行った。
理論的研究では、中性子星合体から1時間後のキロノバの性質を理解するため、高階電離のランタノイド元素の原子構造計算を行い、吸収係数の計算を行なった。その結果をもとに、赤道面から観測する場合を想定した輻射輸送シミュレーションを行い、中性子星合体からの放射スペクトルの予想を提供した。また、連星中性子星合体のダイナミクス解明を目的として、中性子星連星合体およびその後の進化を物理時間で1秒、一括して追跡する3次元の数値相対論シミュレーションをスーパーコンピュータ富岳を用いて行った。年度上半期に数値相対論的輻射磁気流体コードの富岳実機上での最適化作業を行い、下半期よりシミュレーションを開始した。計算は継続中であり、結果が得られ次第、論文として取りまとめる予定である。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

  • Research Products

    (41 results)

All 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (22 results) (of which Int'l Joint Research: 22 results,  Peer Reviewed: 22 results,  Open Access: 10 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] California Institute of Technology(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      California Institute of Technology
  • [Int'l Joint Research] Europiean Gravitational Observatory(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Europiean Gravitational Observatory
  • [Int'l Joint Research] 中国国家天文台/紫金山天文台(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      中国国家天文台/紫金山天文台
  • [Int'l Joint Research] Instiuto de Astrofisica de Canarias(スペイン)

    • Country Name
      SPAIN
    • Counterpart Institution
      Instiuto de Astrofisica de Canarias
  • [Journal Article] MUSE sneaks a peek at extreme ram-pressure stripping events V. Towards a complete view of the galaxy cluster A13672022

    • Author(s)
      Pedrini Alex、Fossati Matteo、Gavazzi Giuseppe、Fumagalli Michele、Boselli Alessandro、Consolandi Guido、Sun Ming、Yagi Masafumi、Yoshida Michitoshi
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 511 Pages: 5180~5197

    • DOI

      10.1093/mnras/stac345

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterisations of the HinOTORI telescope with a three-color imager at Ali Observatory in Western Tibet2022

    • Author(s)
      Liu W.、Utsumi Y.、Yao Y.Q.、Kawabata K.S.、Sasada M.、Yoshida M.、Yin J.、Lou Z.
    • Journal Title

      Journal of Instrumentation

      Volume: 17 Pages: P01022~P01022

    • DOI

      10.1088/1748-0221/17/01/P01022

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Calcium-rich Transient SN 2019ehk in a Star-forming Environment: Yet Another Candidate for a Precursor of a Double Neutron-star Binary2021

    • Author(s)
      Nakaoka Tatsuya、Maeda Keiichi、Yamanaka Masayuki、Tanaka Masaomi、Kawabata Miho、Moriya Takashi J.、Kawabata Koji S.、Tominaga Nozomu、Takagi Kengo、Imazato Fumiya、Morokuma Tomoki、Sako Shigeyuki、Ohsawa Ryou、Nagao Takashi、Jiang Ji-an、Burgaz Umut、他
    • Journal Title

      The Astrophysical Journal

      Volume: 912 Pages: 30~30

    • DOI

      10.3847/1538-4357/abe765

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Origins of the Long-term Variability of the Near-infrared Emission of the Black Hole X-Ray Binary GRS 1915+105 in the X-Ray Low Luminous State2021

    • Author(s)
      Imazato Fumiya、Sasada Mahito、Uemura Makoto、Fukazawa Yasushi、Takahashi Hiromitsu、Nakaoka Tatsuya、Akitaya Hiroshi、Kawabata Koji S.、Akimoto Masanori、Fujisawa Kenta
    • Journal Title

      The Astrophysical Journal

      Volume: 916 Pages: 114~114

    • DOI

      10.3847/1538-4357/ac07a3

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ASASSN-14ms: The Most Energetic Known Explosion of a Type Ibn Supernova and Its Physical Origin2021

    • Author(s)
      Wang Xiaofeng、Lin Weili、Zhang Jujia、Zhang Tianmeng、Cai Yongzhi、Zhang Kaicheng、Filippenko Alexei V.、Graham Melissa、Maeda Keiichi、Mo Jun、Xiang Danfeng、Xi Gaobo、Yan Shengyu、Wang Lifan、Wang Lingjun、Kawabata Koji、Zhai Qian
    • Journal Title

      The Astrophysical Journal

      Volume: 917 Pages: 97~97

    • DOI

      10.3847/1538-4357/ac0c17

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Kottamia Faint Imaging Spectro-Polarimeter (KFISP): opto-mechanical design, software control and performance analysis2021

    • Author(s)
      Azzam Yosry A.、Elnagahy F. I. Y.、Ali Gamal B.、Essam A.、Saad Somaya、Ismail Hamed、Zead I.、Ahmed Nasser M.、Yoshida Michitoshi、Kawabata Koji S.、Akitaya Hiroshi、Shokry A.、Hendy Y. H. M.、Takey Ali、Hamed G. M.、Mack Peter
    • Journal Title

      Experimental Astronomy

      Volume: 53 Pages: 45~70

    • DOI

      10.1007/s10686-021-09802-z

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] R-process enhancements of Gaia-Enceladus in GALAH DR32021

    • Author(s)
      Matsuno T.、Hirai Y.、Tarumi Y.、Hotokezaka K.、Tanaka M.、Helmi A.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 650 Pages: 110~119

    • DOI

      10.1051/0004-6361/202040227

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Signatures of r-process Elements in Kilonova Spectra2021

    • Author(s)
      Domoto Nanae、Tanaka Masaomi、Wanajo Shinya、Kawaguchi Kyohei
    • Journal Title

      The Astrophysical Journal

      Volume: 913 Pages: 26~26

    • DOI

      10.3847/1538-4357/abf358

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nebular Emission from Lanthanide-rich Ejecta of Neutron Star Merger2021

    • Author(s)
      Hotokezaka Kenta、Tanaka Masaomi、Kato Daiji、Gaigalas Gediminas
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 506 Pages: 5863~5877

    • DOI

      10.1093/mnras/stab1975

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extended Calculations of Energy Levels and Transition Rates for Singly Ionized Lanthanide Elements. II. Tb-Yb2021

    • Author(s)
      Radziute Laima、Gaigalas Gediminas、Kato Daiji、Rynkun Pavel、Tanaka Masaomi
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 257 Pages: 29~29

    • DOI

      10.3847/1538-4365/ac1ad2

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Theoretical investigation of energy levels and transition for Ce IV2021

    • Author(s)
      Rynkun P.、Banerjee S.、Gaigalas G.、Tanaka M.、Radziute L.、Kato D.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 658 Pages: A82~A82

    • DOI

      10.1051/0004-6361/202141513

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Discovery of the Fastest Early Optical Emission from Overluminous SN Ia 2020hvf: A Thermonuclear Explosion within a Dense Circumstellar Environment2021

    • Author(s)
      Jiang Ji-an、Maeda Keiichi、Kawabata Miho、Doi Mamoru、Shigeyama Toshikazu、Tanaka Masaomi、Tominaga Nozomu、Nomoto Ken’ichi、Niino Yuu、Sako Shigeyuki、Ohsawa Ryou、Schramm Malte、Yamanaka Masayuki、Kobayashi Naoto、Takahashi Hidenori、Nakaoka Tatsuya、Kawabata Koji S.、他
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 923 Pages: L8~L8

    • DOI

      10.3847/2041-8213/ac375f

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A VLA Survey of Late-time Radio Emission from Superluminous Supernovae and the Host Galaxies2021

    • Author(s)
      Hatsukade Bunyo、Tominaga Nozomu、Morokuma Tomoki、Morokuma-Matsui Kana、Matsuda Yuichi、Tamura Yoichi、Niinuma Kotaro、Motogi Kazuhiro
    • Journal Title

      The Astrophysical Journal

      Volume: 922 Pages: 17~17

    • DOI

      10.3847/1538-4357/ac20d5

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Origin of metals in old Milky Way halo stars based on GALAH and Gaia2021

    • Author(s)
      Ishigaki Miho N、Hartwig Tilman、Tarumi Yuta、Leung Shing-Chi、Tominaga Nozomu、Kobayashi Chiaki、Magg Mattis、Simionescu Aurora、Nomoto Ken’ichi
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 506 Pages: 5410~5429

    • DOI

      10.1093/mnras/stab1982

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Simulation of Superluminous Supernovae Using the M1 Approach for Radiation Transfer2021

    • Author(s)
      Urvachev Egor、Shidlovski Dmitry、Tominaga Nozomu、Glazyrin Semyon、Blinnikov Sergei
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 256 Pages: 8~8

    • DOI

      10.3847/1538-4365/ac0972

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The electron-capture origin of supernova 2018zd2021

    • Author(s)
      Hiramatsu Daichi、Howell D. Andrew、Van Dyk Schuyler D.、Goldberg Jared A.、Maeda Keiichi、Moriya Takashi J.、Tominaga Nozomu、Nomoto Ken’ichi、他
    • Journal Title

      Nature Astronomy

      Volume: 5 Pages: 903~910

    • DOI

      10.1038/s41550-021-01384-2

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Variability of Late-time Radio Emission in the Superluminous Supernova PTF10hgi2021

    • Author(s)
      Hatsukade B.、Tominaga N.、Morokuma T.、Morokuma-Matsui K.、Tamura Y.、Niinuma K.、Hayashi M.、Matsuda Y.、Motogi K.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 911 Pages: L1~L1

    • DOI

      10.3847/2041-8213/abef03

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Regular radial velocity variations in nine G- and K-type giant stars: Eight planets and one planet candidate2021

    • Author(s)
      Teng Huan-Yu、Sato Bun’ei、Takarada Takuya、Omiya Masashi、Harakawa Hiroki、Izumiura Hideyuki、Kambe Eiji、Takeda Yoichi、Yoshida Michitoshi、Itoh Yoichi、Ando Hiroyasu、Kokubo Eiichiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Pages: 92~127

    • DOI

      10.1093/pasj/psab112

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Polarimetric signature of the oceans as detected by near-infrared Earthshine observations2021

    • Author(s)
      Takahashi J.、Itoh Y.、Matsuo T.、Oasa Y.、Bach Y. P.、Ishiguro M.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 653 Pages: A99~A99

    • DOI

      10.1051/0004-6361/202039331

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optical Spectroscopic Monitoring Observations of a Young Binary Z CMa2021

    • Author(s)
      Akimoto Hinako、Itoh Yoichi
    • Journal Title

      International Journal of Astronomy and Astrophysics

      Volume: 11 Pages: 406~421

    • DOI

      10.4236/ijaa.2021.113019

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An Hα/X-ray orphan cloud as a signpost of intracluster medium clumping2021

    • Author(s)
      Ge Chong、Luo Rongxin、Sun Ming、Yagi Masafumi、Jachym Pavel、Boselli Alessandro、Fossati Matteo、Nulsen Paul E J、Sarazin Craig、Edge Tim、Gavazzi Giuseppe、Gaspari Massimo、Koda Jin、Komiyama Yutaka、Yoshida Michitoshi
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 505 Pages: 4702~4716

    • DOI

      10.1093/mnras/stab1569

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A universal correlation between warm and hot gas in the stripped tails of cluster galaxies2021

    • Author(s)
      Sun Ming、Ge Chong、Luo Rongxin、Yagi Masafumi、Jachym Pavel、Boselli Alessandro、Fossati Matteo、Nulsen Paul E. J.、Yoshida Michitoshi、Gavazzi Giuseppe
    • Journal Title

      Nature Astronomy

      Volume: 6 Pages: 270~274

    • DOI

      10.1038/s41550-021-01516-8

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 広島大学宇宙科学センターの活動進捗2021

    • Author(s)
      川端弘治
    • Organizer
      せいめい望遠鏡ユーザーズミーティング
  • [Presentation] 東広島天文台の軌跡とこれから2021

    • Author(s)
      川端弘治
    • Organizer
      第3回新天体捜索者会議
  • [Presentation] Modeling Kilonova Emission from Neutron Star Mergers2021

    • Author(s)
      Tanaka, Masaomi
    • Organizer
      IAU Symposium 363 Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution
    • Int'l Joint Research / Invited
  • [Presentation] 突発天体と可視光・赤外線観測2021

    • Author(s)
      田中雅臣
    • Organizer
      日本物理学会 2021年秋季大会 シンポジウム「ニュートリノ・重力波時代のマルチメッセンジャー天文学の展望」
    • Invited
  • [Presentation] Kilonova2021

    • Author(s)
      田中雅臣
    • Organizer
      Extreme Outflows in Astrophysical Transients
    • Invited
  • [Presentation] Neutron Stars, black holes and gravitational waves2021

    • Author(s)
      Sekiguchi, Yuichiro
    • Organizer
      International School for Strageness Nuclear Physics 2021
    • Int'l Joint Research / Invited
  • [Presentation] On kilonova AT 2017gfo - Current status and future prospects -2021

    • Author(s)
      関口雄一郎
    • Organizer
      J-GEM キックオフワークショップ
    • Invited
  • [Presentation] Follow-up survey for GW event S200224ca by Subaru/HSC and GTC/OSIRIS2021

    • Author(s)
      Ohgami, Takayuki
    • Organizer
      Gravitational wave physics and astronomy: Genesis, Area Workshop
    • Int'l Joint Research
  • [Presentation] なゆた望遠鏡の運用2021

    • Author(s)
      伊藤洋一
    • Organizer
      なゆた望遠鏡ユーザーズミーティング
  • [Presentation] Annual Report of Subaru Telescope2021

    • Author(s)
      Yoshida, Michitoshi
    • Organizer
      Subaru Users Meeting 2021
    • Int'l Joint Research / Invited
  • [Presentation] Subaru Telescope Update 20212021

    • Author(s)
      Yoshida, Michitoshi
    • Organizer
      Keck Science Meeting 2021
    • Int'l Joint Research / Invited
  • [Presentation] すばる2と2030年代のすばる2021

    • Author(s)
      吉田道利
    • Organizer
      光赤天連シンポジウム2021
    • Invited
  • [Presentation] Overview of Subaru Telescope2021

    • Author(s)
      Yoshida, Michitoshi
    • Organizer
      SUPER-IRNET Symposium
    • Int'l Joint Research / Invited
  • [Book] マルチメッセンジャー天文学が捉えた新しい宇宙の姿 宇宙の物質の起源に迫る2021

    • Author(s)
      田中 雅臣
    • Total Pages
      274
    • Publisher
      講談社
    • ISBN
      4065261341
  • [Remarks] 重力波物理学・天文学:創世記

    • URL

      https://gw-genesis.scphys.kyoto-u.ac.jp/ilias/ilias.php?ref_id=1&cmdClass=ilrepositorygui&cmdNode=wc&baseClass=ilrepositorygui

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Published: 2022-12-28  

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