IWAMOTO Koichi

Department of PhysicsProfessor

Research Keyword

  • atomic processes
  • interstellar space
  • gamma-ray bursts
  • radiative transfer
  • supernovae
  • Cosmic Ray Physics and Astrophysics
  • 宇宙線
  • Nuclear Physics
  • Elementary Particles Physics

Field Of Study

  • Natural sciences, Astronomy, Astronomy
  • Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics, Elementary Particles Physics, Nuclear Physics, Cosmic Ray Physics and Astrophysics

Educational Background

  • 1997
    The University of Tokyo, Graduate School of Science, Department of Astronomy
  • 1992
    The University of Tokyo, Faculty of Science, Department of Geophysics

Paper

  • Laboratory Astrophysics Experiments of Collisionless Shock by Supersonic Collision of Plasmoids
    Tomohiko Asai; Daichi Kobayashi; Taishi Seki; Takamasa Kikuchi; Hiroshi Hasebe; Koichi Iwamoto; Shinichiro Onuki; Seiya Kishimoto; Tsutomu Takahashi
    Journal of Research Institute of Science and Technology, College of Science and Technology,, Feb. 2024, Refereed, Not invited
  • Impact of New Gamow-Teller Strengths on Explosive Type Ia Supernova Nucleosynthesis
    Mori; Kanji; Famiano; Michael; A.; Kajino; Toshitaka; Suzuki; Toshio; Hidaka; Jun; Honma; M.; Iwamoto; Koichi; Nomoto; Ken'ichi; Otsuka; Takaharu
    The Astrophysical Journal, Dec. 2016, Refereed, Not invited
  • Gravitational-Wave Memory from the Relativistic Jet of Gamma-Ray Bursts
    Shota Akiba; Megumi Nakada; Chiyo Yamaguchi; Koichi Iwamoto
    Publications of the Astronomical Society of Japan,, Jun. 2013, Refereed, Not invited
    Corresponding
  • Observational Characteristics and Asphericity of Overluminous Type Ia Supernovae
    Keiichi Maeda; Koichi Iwamoto
    Monthly Notices of the Royal Astronomical Society, Mar. 2009, Refereed, Not invited
  • Neutrino Emission from Type Ia Supernovae
    Takashi Kunugise; Koichi Iwamoto
    Publications of the Astronomical Society of Japan, Dec. 2007, Refereed, Not invited
    Corresponding
  • SN1998bw and Hypernovae
    in "Lecture Notes in Physics 598, Supernovae and Gamma-Ray Bursts", 2003, Not refereed, Invited
    Lead
  • The Type Ic Hypernova SN 2002ap
    The Astrophysical Journal Letters, 2002, Refereed, Not invited
  • Effects of relativistic expansion on late-time supernova 5 light curves
    K Iwamoto
    Publications of the Astronomical Society of Japan, 2002, Refereed, Not invited
    Lead
  • Can differences in the nickel abundance in Chandrasekhar-mass models explain the relation be1 tween the brightness and decline rate of normal Type Ia supernovae?
    PA Mazzali; K Nomoto; E Cappellaro; T Nakamura; H Umeda; K Iwamoto
    The Astrophysical Journal, 2001, Refereed, Not invited
  • Light Curve and spectral models for the hypernova SN 2 1998bw associated with GRB980425
    T Nakamura; PA Mazzali; K Nomoto; K Iwamoto
    The Astrophysical Journal, 2001, Refereed, Not invited
  • Explosive nucleosynthesis in hypernovae
    T Nakamura; H Umeda; K Iwamoto; K Nomoto; MA Hashimoto; WR Hix; FK Thielemann
    The Astrophysical Journal, 2001, Refereed, Not invited
  • Radiation hydrodynamics of SN 1987A. I. Global analysis of the light curve for the first 4 months
    S Blinnikov; P Lundqvist; O Bartunov; K Nomoto; K Iwamoto
    ASTROPHYSICAL JOURNAL, Apr. 2000, Refereed, Not invited
  • The peculiar type Ic supernova 1997ef : another hypernova
    K Iwamoto; T Nakamura; K Nomoto; PA Mazzali; IJ Danziger; P Garnavich; R Kirshner; S Jha; D Balam; J Thorstensen
    The Astrophysical Journal, 2000, Refereed, Not invited
    Lead
  • The role of electron captures in Chandrasekhar-mass models for type Ia supernovae
    F Brachwitz; DJ Dean; WR Hix; K Iwamoto; K Langanke; G Martinez-Pinedo; K Nomoto; MR Strayer; FK Thielemann; H Umeda
    The Astrophysical Journal, 2000, Refereed, Not invited
  • A Spectroscopic Analysis of the Energetic Type Ic Hypernova SN 1997ef
    Paolo A. Mazzali; Koichi Iwamoto; Ken'ichi Nomoto
    The Astrophysical Journal, 2000, Refereed, Not invited
  • Nucleosynthesis in Chandrasekhar mass models for type IA supernovae and constraints on progenitor systems and burning-front propagation
    K Iwamoto; F Brachwitz; K Nomoto; N Kishimoto; H Umeda; WR Hix; FK Thielemann
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, Dec. 1999, Refereed, Not invited
    Lead
  • On the radio-to-X-ray light curves of SN 1998bw and GRB980425
    K Iwamoto
    The Astrophysical Journal Letters, 1999, Refereed, Not invited
    Lead
  • A Hypernova Model for the Supernova 1998bw Possibly Associated with GRB980415
    T.Nakamura; P.A.Mazzali; K.Nomoto; K.Iwamoto; H.Umeda
    Astronomische Nachrichten, 1999, Refereed, Not invited
  • A hypernova model for the peculiar type Ic supernova 1997ef
    K Nomoto; K Iwamoto; PA Mazzali; T Nakamura
    ASTRONOMISCHE NACHRICHTEN, 1999, Refereed, Not invited
  • A hypernova model for the supernova associated with the gamma-ray burst of 25 April 1998(共著)
    K Iwamoto; PA Mazzali; K Nomoto; H Umeda; T Nakamura; F Patat; IJ Danziger; TR Young; T Suzuki; T Shigeyama; T Augusteijn; Doublier, V; JF Gonzalez; H Boehnhardt; J Brewer; OR Hainaut; C Lidman; B Leibundgut; E Cappellaro; M Turatto; TJ Galama; PN Vreeswijk; C Kouveliotou; J van Paradijs; E Pian; E Palazzi; F Frontera
    Nature, 1998, Refereed, Not invited
    Lead
  • An unusual supernova in the error box of the gamma-ray burst of 25 April 1998(共著)
    TJ Galama; PM Vreeswijk; J van Paradijs; C Kouveliotou; T Augusteijn; H Bohnhardt; JP Brewer; Doublier, V; JF Gonzalez; B Leibundgut; C Lidman; OR Hainaut; F Patat; J Heise; J in't Zand; K Hurley; PJ Groot; RG Strom; PA Mazzali; K Iwamoto; K Nomoto; H Umeda; T Nakamura; TR Young; T Suzuki; T Shigeyama; T Koshut; M Kippen; C Robinson; P de Wildt; RAMJ Wijers; N Tanvir; J Greiner; E Pian; E Palazzi; F Frontera; N Masetti; L Nicastro; M Feroci; E Costa; L Piro; BA Peterson; C Tinney; B Boyle; R Cannon; R Stathakis; E Sadler; MC Begam; P Ianna
    Nature, 1998, Refereed, Not invited
  • The peculiar type (]G0002[) supernova 1997D : a case for a very low 56Ni mass
    M Turatto; PA Mazzali; TR Young; K Nomoto; K Iwamoto; S Benetti; E Cappellaro; IJ Danziger; DF de Mello; MM Phillips; NB Suntzeff; A Clocchiatti; A Piemonte; B Leibundgut; R Covarrubias; J Maza; J Sollerman
    Astrophysical Journal Letters, 1998, Refereed, Not invited
  • Type Ia Supernovae : their origin and possible applications in cosmology(共著)
    K Nomoto; K Iwamoto; N Kishimoto
    Science, 1997, Refereed, Not invited
  • Nucleosynthesis in Type Ia Supernovae
    K Nomoto; K Iwamoto; N Nakasato; FK Thielemann; F Brachwitz; T Tsujimoto; Y Kubo; N Kishimoto
    Nuclear Physics A, 1997, Not refereed, Not invited
  • Nucleosynthesis in SNe Ia as a function of the burning front propagation
    FK Thielemann; F Brachwitz; K Nomoto; K Iwamoto
    Nuclear Physics A, 1997, Not refereed, Not invited
  • Instabilities and mixing in SN 1993J(共著)
    Kohichi Iwamoto; Tlmothy R. Young; Naohito Nakasato; Toshlkazu Shlgeyama; KeN'Ichi Nomoto; Izumi Hachisu; Hldeyuki Said
    The Astrophysical Journal, 1996, Refereed, Not invited
    Lead
  • The evolution and explosion of massive binary stars and type Ib-Ic-IIb-IIL supernovae
    K NOMOTO; K IWAMOTO; T SUZUKI
    Physics Report, 1995, Refereed, Not invited
  • Theoretical Light Curves for the Thpe Ic Supernova 1994(]G0001[)(共著)
    K IWAMOTO; K NOMOTO; P HOFLICH; H YAMAOKA; T SHIGEYAMA
    The Astrophysical Journal Letters, 1994, Refereed, Not invited
    Lead
  • A carbon-oxygen star as progenitor of the Type Ic Supernova 1994(]G0001[)(共著)
    K NOMOTO; H YAMAOKA; EPJ VANDENHEUVEL; K IWAMOTO; S KUMAGAI; T SHIGEYAMA; OR POLS
    Nature, 1994, Refereed, Not invited
  • Type (]G0002[) Supernovae from 8-10 Mo asymptotic giant branch stars(共著)
    M HASHIMOTO; K IWAMOTO; K NOMOTO
    The Astrophysical Journal Letters, 1993, Refereed, Not invited

Lectures, oral presentations, etc.

  • 無限高階微分を含む場の理論のハミルトン形式の構築
    春日優弥、岩本弘一
    日本大学理工学部学術講演会, Nov. 2023, Not invited
  • Wheeler-DeWitt equation with quantum corrections and minisuperspace model
    Koichi Iwamoto
    日本物理学会第77回年次大会, Mar. 2022, 日本物理学会, Not invited
  • Steady Solutions of Relativistic Radiation Hydrodynamics
    Koichi Iwamoto
    日本物理学会2021年秋季大会, Sep. 2021, 日本物理学会, Not invited
  • 相対論的な平行平板状輻射流体の定常解
    岩本弘一
    日本天文学会2017年秋季年会, Sep. 2017, 日本天文学会, Not invited
  • The Structure and Radition Spectrum of AGN Jets
    岩本弘一、齋藤陽香
    日本天文学会2015年秋季年会, Sep. 2015, Not invited
  • 相対論的アウトフローの放射流体モデルIII
    中田めぐみ、岩本弘一
    日本天文学会2015年春季年会, Mar. 2015, 日本天文学会, Not invited
  • 'Ia型超新星における原子核・原子物理過程, 理研研究会「原子核の構造と反応:21世紀への課題と展望」'
    理化学研究所核理論グループ, Apr. 2000, Not invited
  • '*Deflagration-to-detonation transition *DDT and Variation in SN Ia Brightness, Cosmology with Type Ia Supernovae'
    シカゴ大学フェルミ研究所(アメリカ), Oct. 1998, Not invited
  • 'Supernovae and Gamma-ray Bursts, Workshop of Japan-Geramny, High-Energy Astrophysics'
    日本学術振興会, Oct. 1998, Not invited
  • 'Light Curre Modelling of the Type Ib/c Supernova 1997ef, Nuclear Astrophysics'
    マックスプランク天体物理学研究所(ドイツ), Mar. 1998, Not invited
  • 'Instabilities of Nuclear Flames in Thermonuclear Supernovae, supernovae'
    カリフォルニア大学サンタバーバラ校(UCSB)、理論物理学研究所(ITP) (アメリカ), Aug. 1997, Not invited
  • 'Ia型超新星の爆発メカニズム, 第7回理論天文学懇談会'
    国立天文台, Dec. 1994, Not invited

Courses

  • 物理数学I
    日本大学理工学部
  • 物理数学II
    日本大学理工学部
  • 量子力学I
    日本大学理工学部
  • 量子力学II
    日本大学理工学部
  • 物理数学演習
    日本大学理工学部
  • 統計物理学演習
    日本大学理工学部
  • 計算機演習
    日本大学理工学部
  • アルゴリズムとプログラミングI
    日本大学理工学部

Affiliated academic society

  • Astronomical Society of Japan
  • Physical Society of Japan

Research Themes

  • Experimental research of collisionless shock in an extremely high-beta magnetized plasma
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Apr. 2020 - Mar. 2025
    浅井 朋彦; 井 通暁; 長山 好夫; 高橋 俊樹; 岩本 弘一; 阿部 新助; 高橋 努
  • 超新星によるニュートリノ放射
    日本大学, 日本大学学術研究助成金・一般研究(個人), 2004 - 2004
  • 相対論的輻射流体コードの開発とそれを用いた相対論的ジェットの研究
    日本学術振興会, 科学研究費助成事業, 2003 - 2004
    岩本 弘一
  • 日震学に基づく太陽モデルの構築と太陽ニュートリノ絶対強度の決定
    日本学術振興会, 科学研究費助成事業, 2000 - 2003
    柴橋 博資; 斎尾 英行; 高田 将郎; 野本 憲一; 関井 隆; 尾崎 洋二; 鈴木 知治; 岩本 弘一
  • Ia型超新星による宇宙パラメータの決定およびハイパーノバとガンマ線バースト
    日本学術振興会, 科学研究費助成事業, 2000 - 2001
    岩本 弘一
  • Ia型超新星の爆発メカニズムと放射スペクトルの研究
    日本学術振興会, 科学研究費助成事業, 1998 - 1998
    岩本 弘一