Hypernovae : Their Properties and Gamma-Ray Burst Connection(Session 9 : Gamma-Ray Bursts : Afterglows and Acceleration)

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概要

• 論文の詳細を見る

• Natures of very energetic supernovae, i. e., hypernovae, are discussed. They are the explosive deaths of stars more massive than 〜 20 - 25M_<⊙>, probably being linked to enigmatic Gamma-Ray Bursts. Optical properties of hypernovae indicate that they are significantly aspherical, while so far no detailed modeling of such an explosion is available. We present light curves and late-phase spectra of aspherical supernova/hypernova models, showing that the optical observations of SNe 1998bw and 2002ap can be well accounted for. The abundance patterns of hypernovae are characterized by large ratios (Zn, Co)/Fe and small ratios (Mn, Cr)/Fe, indicating significant contribution to the early Galactic chemical evolution.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• TOMINAGA Nozomu

  Department of Astronomy, University of Tokyo

• MAEDA Keiichi

  Department of Earth Science and Astronomy, College of Arts and Science, University of Tokyo

• 野本 憲一

  Department Of Astronomy And Research Center For The Early Universe The University Of Tokyo

• Maeda K

  Department Of Earth Science And Astronomy College Of Arts And Science University Of Tokyo

• Maeda Keiichi

  Department Of Astronomy And Research Center For The Early Universe The University Of Tokyo

• Maeda Keiichi

  Research Institute For Fundamental Physics Kyoto University

• Tominaga Nozomu

  Department Of Astronomy University Of Tokyo

• UMEDA Hideyuki

  Department of Astronomy, School of Science, The University of Tokyo

• OHKUBO Takuya

  Department of Astronomy, University of Tokyo

• MAZZALI Paolo

  Reserch Center for the Early Universe, University of Tokyo

• Deng Jinsong

  Department Of Astronomy University Of Tokyo

• Maeda Kei-ichi

  Research Institute For Fundamental Physics Kyoto University

• Maeda Kei-ichi

  Department Of Physics Waseda University

• Maeda Kei-ichi

  Research Institute For Fundamental Physics Kyoto Unviersity

• Ohkubo Takuya

  Department Of Astronomy University Of Tokyo

• Umeda Hideyuki

  Department Of Astronomy Faculty Of Science The University Of Tokyo

• MAEDA Keiichi

  Department of Astronomy, University of Tokyo

• NOMOTO Ken'ichi

  Department of Astronomy, University of Tokyo

• NOMOTO Ken'Ichi

  Department of Physics, Ibaraki University : NASA-Goddard Space Flight Center

• NOMOTO Ken'ichi

  Department of Astronomy, University of Tokyo:Research Center for the Early Universe, University of Tokyo

• NOMOTO Ken'ichi

  Department of Physics, Ibaraki University

• MAZZALI Paolo

  Reserch Center for the Early Universe, University of Tokyo:INAF-Osservatorio Astronomico

• MAEDA Kei-ichi

  Research Institute for Fundamental Physics, Kyoto Unviersity ./ Department of Physics, Kyoto University

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