Gamma-ray bursts studied with multi-dimensional radiation hydrodynamics and nucleosynthesis calculations

• Project/Area Number: 15H05440
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Konan University
• Principal Investigator: 冨永 望 甲南大学, 理工学部, 教授 (00550279)
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Granted (Fiscal Year 2018)
• Budget Amount: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000); Fiscal Year 2018: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2017: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2016: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
• Keywords: 輻射輸送 / ガンマ線バースト / 元素合成 / 超新星爆発 / 輻射流体計算

Outline of Annual Research Achievements

本研究課題はガンマ線バーストの起源を探るため、多次元多波長相対論的輻射流体計算コードの開発、超新星爆発・ガンマ線バーストの観測的研究、元素合成計算の観測的対応として金属欠乏星の有用性の検証を進めている。平成29年度には以下のような研究を行った。
１．ガンマ線バーストのうち継続時間の短いタイプの起源は中性子星連星の合体と考えられている。2017年8月17日にAdvanced LIGOおよびAdvanced Virgoによって検出された中性子星連星合体からの重力波に対して、すばる望遠鏡HSCやその他の中小口径望遠鏡を用いた追観測を行い、中性子星連星合体の電磁波対応天体SSS17aを発見し、その他に電磁波対応天体の可能性の高い天体が存在しないことを示し、その性質が理論的に予言されていたキロノバ（マクロノバ）と一致することを明らかにした。
２．雇用する研究員が中心となって、低質量初代星が形成された場合に、これまで全く考えられていなかった低質量初代星からの輻射および星風を初めて考慮した結果、金属の低質量初代星表面への降着が阻害され、低質量初代星は金属量0の星として観測されることを示した。
３．雇用する研究員が中心となって、ガンマ線バースト残光などにおいて実現されていると考えられている無衝突衝撃波を地上の高強度レーザーを用いて再現することを目的として、大阪大学において無衝突垂直衝撃波のレーザー実験を行っている。今年度の実験により雰囲気ガスの電離には成功し、アルミプラズマとの衝突を観測することができた。
４．特に金属量の少ない金属欠乏星について、冷却に重要なダストの種類が異なる二種類があり、炭素ダストによる冷却が支配的な炭素組成の高い金属欠乏星とシリケイトダストによる冷却が支配的な炭素組成の低い金属欠乏星が存在することを示した。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

球面調和関数を用いて光子の散乱を解き離散座標を用いて光子輸送を計算するSpherical Harmonic Discrete Ordinate Method (SHDOM)という手法を採用した多次元多波長相対論的輻射輸送計算コードを開発している。軸対称円柱座標系に拡張した同コードを用いた計算結果が一般に高エネルギー実験との比較で使用されている電子ガンマ線シャワーソフトウェアと一致すること、また相対論的速度を持つ媒質中の非等方・非弾性散乱を含む輻射輸送について、我々の開発した相対論的光子輸送計算コードと一致することを確認した。さらに、実際に相対論的流体計算の結果に基づいて多波長輻射輸送計算を行い、黒体輻射スペクトル持って生成された光子がコンプトン散乱を通じて高エネルギーまでローレンツブーストされることを確認した。
以上の理論的研究に加えて、開発している計算コードと比較可能な観測を取得するための体制およびデータ解析システムの構築を進め、実際に重力波源、高速電波バーストの観測を遂行することができた。特に、中性子星合体からの重力波の追観測に成功し、電磁波対応天体の発見およびその素性の解明に貢献した。また、大阪大学において行っている実験についても雰囲気ガスの電離には成功し実験と計算コードの比較に向けて道を開くことができた。

Strategy for Future Research Activity

相対論的流体計算コードによって得られた流体構造を背景とした軸対称円柱座標系多次元多波長相対論的輻射輸送計算コードを用いた輻射輸送計算によって、電子の熱運動を考慮する必要があることが明らかとなった。そのため、電子の熱運動を解析的に考慮する方法を用いて、軸対称円柱座標系多次元多波長相対論的輻射輸送計算コードの改良を行い、光度曲線、スペクトルを提出する。このうち、特にスペクトルについて提出した理論モデルと現実のガンマ線バーストとの比較を行い、ガンマ線バーストの観測から求められる流体構造を明らかにする。さらに、平成29年度までに行った相対論的流体計算結果に基づいた輻射輸送計算の経験を活かし、多次元多波長相対論的輻射輸送計算コードと相対論的流体計算コードの融合を進める。開発している多次元多波長相対論的輻射流体・元素合成計算コードの適用天体を増やし、比較可能な観測データを取得するためのガンマ線バースト・超新星爆発・重力波源・高速電波バーストの追観測体制の構築を推し進める。また、元素合成計算と比較可能な観測データとして金属欠乏星に注目し、その元素組成からガンマ線バースト・超新星爆発の爆発メカニズムや親星に迫る方策を検討する。

Research Products

• [Int'l Joint Research] ITEP(ロシア)
• [Int'l Joint Research] ITEP(ロシア)
• [Int'l Joint Research] ITEP(ロシア)
• [Int'l Joint Research] Universidad de Chile/Universidad Andres Bello/European Southern Observatory(チリ)
• [Int'l Joint Research] NRI of Astronomy and Geophysics(エジプト)
• [Int'l Joint Research] CEA Saclay(フランス)
• [Int'l Joint Research] NASA Goddard Space Flight Center(アメリカ)
• [Int'l Joint Research]
• [Journal Article] Subaru Hyper Suprime-Cam Survey for an optical counterpart of GW170817‡ (2018)
  • Author(s): Tominaga Nozomu , Tanaka Masaomi , Morokuma Tomoki , Utsumi Yousuke , Yamaguchi Masaki S , Yasuda Naoki , Tanaka Masayuki , Yoshida Michitoshi , Fujiyoshi Takuya , Furusawa Hisanori , et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: 28-28
  • DOI: 10.1093/pasj/psy007
  • NAID: 120006537077
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Search for Thermal X-ray Features from the Crab nebula with Hitomi Soft X-ray Spectrometer (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: 14-14
  • DOI: 10.1093/pasj/psx072
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Intermediate-mass Elements in Young Supernova Remnants Reveal Neutron Star Kicks by Asymmetric Explosions (2018)
  • Author(s): Katsuda Satoru、Morii Mikio、Janka Hans-Thomas、Wongwathanarat Annop、Nakamura Ko、Kotake Kei、Mori Koji、M?ller Ewald、Takiwaki Tomoya、Tanaka Masaomi、Tominaga Nozomu、Tsunemi Hiroshi
  • Journal Title: Intermediate-mass Elements in Young Supernova Remnants Reveal Neutron Star Kicks by Asymmetric Explosions Volume: 856 Pages: 1-18
  • DOI: 10.3847/1538-4357/aab092
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam SSP Survey: Overview and survey design (2018)
  • Author(s): Aihara Hiroaki、Arimoto Nobuo、Armstrong Robert、 et al. (including Imanishi M.)
  • Journal Title: PASJ Volume: 70 Pages: 1-14
  • DOI: 10.1093/pasj/psx066
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A challenge to identify an optical counterpart of the gravitational wave event GW151226 with Hyper Suprime-Cam (2018)
  • Author(s): Utsumi Yousuke , Tominaga Nozomu , Tanaka Masaomi , Morokuma Tomoki , Yoshida Michitoshi , Asakura Yuichiro , Finet Francois , Furusawa Hisanori , Kawabata Koji S , Liu Wei , et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Pages: 1-1
  • DOI: 10.1093/pasj/psx125
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Kilonova from post-merger ejecta as an optical and near-Infrared counterpart of GW170817 (2017)
  • Author(s): Tanaka Masaomi , Utsumi Yousuke , Mazzali Paolo A. , Tominaga Nozomu , Yoshida Michitoshi , Sekiguchi Yuichiro , Morokuma Tomoki , Motohara Kentaro , Ohta Kouji , Kawabata Koji S. , et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 102-102
  • DOI: 10.1093/pasj/psx121
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] J-GEM observations of an electromagnetic counterpart to the neutron star merger GW170817 (2017)
  • Author(s): Utsumi Yousuke , Tanaka Masaomi , Tominaga Nozomu , Yoshida Michitoshi , Barway Sudhanshu , Nagayama Takahiro , Zenko Tetsuya , Aoki Kentaro , Fujiyoshi Takuya , Furusawa Hisanori , et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 101-101
  • DOI: 10.1093/pasj/psx118
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] SN 2016jhj at redshift 0.34: extending the Type II supernova Hubble diagram using the standard candle method (2017)
  • Author(s): de Jaeger T. , Galbany L. , Filippenko A. V. , Gonzalez-Gaitan S. , Yasuda N. , Maeda K. , Tanaka M. , Morokuma T. , Moriya T. J. , Tominaga N. , et al.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 472 Pages: 4233-4243
  • DOI: 10.1093/mnras/stx2300
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Classification of extremely metal-poor stars: absent region in A(C)?[Fe/H] plane and the role of dust cooling (2017)
  • Author(s): Chiaki Gen、Tominaga Nozomu、Nozawa Takaya
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 472
  • DOI: 10.1093/mnrasl/slx163
  • Peer Reviewed / Open Access
• [Journal Article] OISTER optical and near-infrared monitoring observations of peculiar radio-loud active galactic nucleus SDSS J110006.07+442144.3 (2017)
  • Author(s): T. Morokuma, M. Tanaka, Y. Tanaka, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 82-103
  • DOI: 10.1093/pasj/psx075
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A hybrid type Ia supernova with an early flash triggered by helium-shell detonation (2017)
  • Author(s): Jiang Ji-an、Shigeyama Toshikazu (他、25人中4番目）
  • Journal Title: Nature Volume: 550 Pages: 80-83
  • DOI: 10.1038/nature23908
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multi-messenger Observations of a Binary Neutron Star Merger (2017)
  • Author(s): Abbott B. P., Abbott, R., Abbott, T. D., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R. X., Adya, V. B., Affeldt, C., Afrough, M., Agarwal, B., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. D., Aiello, L., Ain, A., Ajith, P. 他 Negoro, H. 含む 3656 名
  • Journal Title: Astrophysical Journal Letters Volume: 848
  • DOI: 10.3847/2041-8213/aa91c9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Blocking Metal Accretion onto Population III Stars by Stellar Wind (2017)
  • Author(s): Tanaka Shuta J.、Chiaki Gen、Tominaga Nozomu、Susa Hajime
  • Journal Title: The Astrophysical Journal Volume: 844 Pages: 137-137
  • DOI: 10.3847/1538-4357/aa7e2c
  • Peer Reviewed / Open Access
• [Journal Article] A new, faint population of X-ray transients (2017)
  • Author(s): Bauer, F.E., et al. (12/25 authors)
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 467 Pages: 4841-4857
  • DOI: 10.1093/mnras/stx417
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Light-curve and spectral properties of ultrastripped core-collapse supernovae leading to binary neutron stars (2017)
  • Author(s): Moriya, Takashi J.; Mazzali, Paolo A.; Tominaga, Nozomu; Hachinger, Stephan; Blinnikov, Sergei I.; Tauris, Thomas M.; Takahashi, Koh; Tanaka, Masaomi; Langer, Norbert; Podsiadlowski, Philipp
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 466 Pages: 2085-2098
  • DOI: 10.1093/mnras/stw3225
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Broad-lined supernova 2016coi with a helium envelope (2017)
  • Author(s): Masayuki Yamanaka et al. (including Nozomu Tominaga)
  • Journal Title: The Astrophysical Journal Volume: 837 Pages: 1-1
  • DOI: 10.3847/1538-4357/aa5f57
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] J-GEM follow-up observations of the gravitational wave source GW151226 (2017)
  • Author(s): Yoshida, Michitoshi他
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 9-9
  • DOI: 10.1093/pasj/psw113
  • NAID: 120006537079
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Machine-learning selection of optical transients in the Subaru/Hyper Suprime-Cam survey (2016)
  • Author(s): Morii, M., Ikeda, S., Tominaga, N., Tanaka, M., Morokuma, T., Ishiguro, K., Yamato, J., Ueda, N., Suzuki, N., Yasuda, N., Yoshida, N.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 1-8
  • DOI: 10.1093/pasj/psw096
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Optical and radio astrometry of the galaxy associated with FRB 150418 (2016)
  • Author(s): C. G. Bessa et al. (including N. Tominaga)
  • Journal Title: Monthly Notices of the Royal Astronomical Society: Letters, Volume: 463
  • DOI: 10.1093/mnrasl/slw151
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] OISTER optical and near-infrared observations of the super-Chandrasekhar supernova candidate SN 2012dn: Dust emission from the circumstellar shell (2016)
  • Author(s): Yamanaka, M., Maeda, K., Tanaka, M. , Tominaga, N., Kawabata, K. S., et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 68-68
  • DOI: 10.1093/pasj/psw047
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] J-GEM follow-up observations to search for an optical counterpart of the first gravitational wave source GW150914 (2016)
  • Author(s): T Morokuma, M Tanaka, Y Asakura, F Abe, PJ. Tristram, Y Utsumi, M Doi, K Fujisawa, R Itoh, Y Itoh, K S. Kawabata, N Kawai, D Kuroda, K Matsubayashi, Yoshihiko Saito, Yoichi Yatsu, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68
  • DOI: 10.1093/pasj/psw061
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Where are the Low-mass Population III Stars? (2016)
  • Author(s): Ishiyama, T., Sudo, K., Yokoi, S., Hasegawa, K., Tominaga, N., Susa, H.
  • Journal Title: The Astrophysical Journal Volume: 826
  • DOI: 10.3847/0004-637x/826/1/9
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] An effective selection method for low-mass active black holes and first spectroscopic identification (2016)
  • Author(s): Morokuma, Tominaga, Tanaka, Yasuda, Furusawa, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 2016arXiv160302302M Pages: 1-10
  • DOI: 10.1093/pasj/psw033
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Multicolor light curves simulations of Population III core-collapse supernovae: from shock breakout to 56Co decay. (2016)
  • Author(s): Alexey Tolstov, Ken'ichi Nomoto, Nozomu Tominaga,Miho N. Ishigaki, Sergey Blinnikov, Tomoharu Suzuki
  • Journal Title: Astrophysical Journal Volume: 821
  • DOI: 10.3847/0004-637x/821/2/124
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Rapidly Rising Transients from the Subaru Hyper Suprime-Cam Transient Survey (2016)
  • Author(s): Tanaka, M., Tominaga, N., Morokuma, T., Yasuda, N., Furusawa, H., Baklanov, P. V., Blinnikov, S. I., Moriya, T. J., Doi, M., Jiang, J., Kato, T., Kikuchi, Y., Kuncarayakti, H., Nagao, T., Nomoto, K., & Taniguchi, Y.
  • Journal Title: Astrophysical Journal Volume: 819 Pages: 5-5
  • DOI: 10.3847/0004-637x/819/1/5
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The host galaxy of a fast radio burst (2016)
  • Author(s): E. Keane et al. (41人中18番目)
  • Journal Title: Nature Volume: 530 Pages: 453-456
  • DOI: 10.1038/nature17140
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evidence for Thermal X-Ray Line Emission from the Synchrotron-dominated Supernova Remnant RX J1713.7-3946 (2015)
  • Author(s): Katsuda, Satoru; Acero, Fabio; Tominaga, Nozomu; Fukui, Yasuo; Hiraga, Junko S.; Koyama, Katsuji; Lee, Shiu-Hang; Mori, Koji; Nagataki, Shigehiro; Ohira, Yutaka; and 7 coauthors
  • Journal Title: Astrophysical Journal Volume: 814 Pages: 1-11
  • DOI: 10.1088/0004-637x/814/1/29
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The rise-time of Type II supernovae (2015)
  • Author(s): Gonzalez-Gaitan, S.; Tominaga, N.; Molina, J.; Galbany, L.; Bufano, F.; Anderson, J. P.; Gutierrez, C.; Förster, F.; Pignata, G.; Bersten, M.; Howell, D. A.; Sullivan, M.; Carlberg, R.; de Jaeger, T.; Hamuy, M.; Baklanov, P. V.; Blinnikov, S. I.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 451 Pages: 2212-2229
  • DOI: 10.1093/mnras/stv1097
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Time-dependent Multi-group Multi-dimensional Relativistic RadiativeTransfer Code Based on the Spherical Harmonic Discrete Ordinate Method (2015)
  • Author(s): Tominaga, Nozomu; Shibata, Sanshiro; Blinnikov, Sergei I.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 219
  • DOI: 10.1088/0067-0049/219/2/38
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] How much can 56Ni be synthesized by the magnetar model for long gamma-ray bursts and hypernovae? (2015)
  • Author(s): Suwa, Yudai; Tominaga, Nozomu
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 451 Pages: 282-287
  • DOI: 10.1093/mnras/stv901
  • NAID: 120005676699
  • Peer Reviewed
• [Journal Article] Nuclear composition of magnetized gamma-ray burst jets (2015)
  • Author(s): 柴田三四郎、冨永望
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 印刷中
  • DOI: 10.1093/pasj/psv020
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] OISTER Optical and Near-Infrared Observations of Type Iax Supernova 2012Z (2015)
  • Author(s): Yamanaka, M., Maeda, K., Kawabata, K., Tanaka, M., Tominaga, N., Akitaya, H.,･･･Oasa, Y. et al.
  • Journal Title: The Astrophysical Journal Volume: 806 Pages: 191-191
  • DOI: 10.1088/0004-637x/806/2/191
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Properties of Relativistic Outflows with Turbulent Magnetic Field and Its Dissipation (2018)
  • Author(s): S. J. Tanaka
  • Organizer: Dawn of a new era for black hole jets in active galaxies
  • Int'l Joint Research
• [Presentation] GW170817の電磁波追観測 Electromagnetic follow-up observations of GW170817 (2018)
  • Author(s): 冨永望
  • Organizer: 日本物理学会2018年春季年会
  • Invited
• [Presentation] GW170817: すばる望遠鏡HSCを用いた可視光対応天体の探索 (2018)
  • Author(s): 冨永望
  • Organizer: 日本天文学会春季年会
• [Presentation] 磁場散逸を含んだ相対論的磁気流体流れの減速について (2017)
  • Author(s): 田中周太, 當真賢二, 冨永望
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
• [Presentation] 超新星残骸観測から探る超新星爆発 (2017)
  • Author(s): 冨永望
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
  • Invited
• [Presentation] 重力波源の可視光追観測 (2017)
  • Author(s): 冨永望
  • Organizer: 連星中性子星・ブラックホールを含む重力波源の電磁波対応天体
  • Place of Presentation: 京都大学
  • Year and Date: 2017-03-06
  • Invited
• [Presentation] HSC Transient Survey (2017)
  • Author(s): 冨永望
  • Organizer: マルチメッセンジャー天文学研究会
  • Place of Presentation: 千葉大学
  • Year and Date: 2017-03-02
  • Invited
• [Presentation] On the Radio-emitting Particles of the Crab Nebula: Stochastic Acceleration Model (2017)
  • Author(s): S. J. Tanaka
  • Organizer: Pulsar Astrophysics: The Next Fifty Years (IAU Symposium 337)
  • Int'l Joint Research
• [Presentation] Confinement of Pulsar Wind Nebulae by Their Supernova Remnants and Magnetic Dissipa- tion (2017)
  • Author(s): S. J. Tanaka
  • Organizer: Physics of Neutron Stars 2017
  • Int'l Joint Research
• [Presentation] Blocking metal accretion onto population III stars by stellar wind (2017)
  • Author(s): S. J. Tanaka
  • Organizer: OMEG2017
  • Int'l Joint Research
• [Presentation] Induced Compton Scattering off Anisotropic Radiation (2017)
  • Author(s): S. J. Tanaka
  • Organizer: Sixth International Conference on High Energy Density Physics (ICHED 2017)
  • Int'l Joint Research
• [Presentation] Supernova Nucleosynthesis (2017)
  • Author(s): Nozomu Tominaga
  • Organizer: OMEG2017
  • Int'l Joint Research / Invited
• [Presentation] Supernova nucleosynthesis and extremely metal-poor stars (2017)
  • Author(s): Nozomu Tominaga
  • Organizer: A Celebration of CEMP and a Gala of GALAH 2017
  • Int'l Joint Research / Invited
• [Presentation] Search for an optical/NIR counterpart of GW170817 (2017)
  • Author(s): Nozomu Tominaga
  • Organizer: Gravitational wave physics and astronomy: Genesis
  • Int'l Joint Research / Invited
• [Presentation] Searches for Electromagnetic Counterparts of Gravitational Waves (2017)
  • Author(s): Nozomu Tominaga
  • Organizer: Neutron Star Mergers and Galactic Chemical Evolution
  • Int'l Joint Research / Invited
• [Presentation] Transient Survey with Subaru/Hyper Suprime- Cam (2016)
  • Author(s): 冨永望
  • Organizer: Gravitational-Wave Astrophysics in the High Event Rate Regime
  • Place of Presentation: 東京大学
  • Year and Date: 2016-12-05
  • Int'l Joint Research / Invited
• [Presentation] Search for optical counterparts of gravitational waves (2016)
  • Author(s): 冨永望
  • Organizer: Compact stars and gravitational waves
  • Place of Presentation: 京都大学
  • Year and Date: 2016-10-31
  • Int'l Joint Research / Invited
• [Presentation] パルサー星雲における二次フェルミ加速モデル (2016)
  • Author(s): 田中周太
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] Development of a multidimensional relativisticradiative transfer code (2016)
  • Author(s): 冨永望
  • Organizer: FRONTIERS OF NONLINEAR PHYSICS 2016
  • Place of Presentation: Nizhny Novgorod, Russia
  • Year and Date: 2016-07-17
  • Int'l Joint Research / Invited
• [Presentation] A Stochastic Acceleration Model of Radio Emission from Pulsar Wind Nebulae (2016)
  • Author(s): 田中周太
  • Organizer: Supernova Remnants: An Odyssey in Space After Steller Death
  • Place of Presentation: ギリシャ、クレタ島、ハニア (Chania, Crete, Greece)
  • Year and Date: 2016-06-06
  • Int'l Joint Research
• [Remarks] Supernova survey with Subaru/Hyper Suprime-Cam
  • URL: http://tpweb2.phys.konan-u.ac.jp/~tominaga/HSC-SN/index.html