Expected Hard X-Ray and Soft Gamma-Ray from Supernovae

Authors

  • Keiichi Maeda Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Japan
  • Yukikatsu Terada Department of Physics, Saitama University, Japan
  • Aya Bamba Department of Physics and Mathematics, College of Science and Engineering, Aoyama Gakuin University, Japan

DOI:

https://doi.org/10.14311/APP.2014.01.0205

Abstract

High energy emissions from supernovae (SNe), originated from newly formed radioactive species, provide direct evidence of nucleosynthesis at SN explosions. However, observational diculties in the MeV range have so far allowed the signal detected only from the extremely nearby core-collapse SN 1987A. No solid detection has been reported for thermonuclear SNe Ia, despite the importance of the direct conrmation of the formation of 56Ni, which is believed to be a key ingredient in their nature as distance indicators. In this paper, we show that the new generation hard X-ray and soft gamma-ray instruments, on board Astro-H and NuStar, are capable of detecting the signal, at least at a pace of once in a few years, opening up this new window for studying SN explosion and nucleosynthesis.

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Published

2014-12-04

Issue

Vol. 1 No. 1 (2014): FRASCATI WORKSHOP 2013

Section

Articles

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