Evolution of Iron Stars : Gravitational Contraction and the Decomposition of Iron

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概要

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• The evolution of iron stars in the phases of gravitational contraction and collapse is studied with an automatic computation method for the stellar masses 2.6Mxodoi and 10Mxodoi. The computation is made for the two alternative cases with and without neutrino production by electron-neutrino interaction. For the stages before the stars become unstable because of the iron-helium phase transition, the features of evolution are essentially the same as those of carbon stars which have previously been computed by Murai, Sugimoto, Ho^^-shi and Hayashi. Only for the cases with neutrinos, a further evolution has been computed until the central density becomes as high as 10^<11> g/cm^3. As soon as the iron-helium phase change occurs in the central region, the stars begin to collapse and the evolution becomes almost adiabatic. It is found that the collapse of the star of 2.6Mxodoi is initiated not by the instability due to electron capture, contrary to the conclusion of Savedoff, Van Horn and Vila, but by the iron-helium transition.

• 理論物理学刊行会の論文
• 1970-02-25

著者

• Nakazawa Kiyoshi

  Department of Cardiology, St. Marianna University School of Medicine

• HAYASHI Chushiro

  Department of Physics, Kyoto University

• Nakazawa Kiyoshi

  Department Of Physics Kyoto University

• Hayashi Chushiro

  Department Of Nuclear Science Kyoto University

• HOSHI Reiun

  Department of Physics, Rikkyo University

• Hoshi Reiun

  Department Of Physics Rikkyo University

• Hoshi Reiun

  Department Of Physics Kyoto University

• MURAI Tadayuki

  Department of Physics, Nagoya University

• Murai Tadayuki

  Department Of Physics Nagoya University

• Murai Tadayuki

  Department Of Physics Kyoto University

• Nakazawa Kiyoshi

  Department Of Applied Physics Tokyo Institute Of Technology

• HOSHI Reiun

  Department of Physics, Kyoto University

• HAYASHI Chushiro

  Department of Nuclear Science : Research Institute for Fundamental Physics Kyoto University : National Aeronautics and Space Administration

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