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1 results

  • Properties of X-ray emission of an aspherical shock breakout

  • Yukari Ohtani, Akihiro Suzuki, Toshikazu Shigeyama, Masaomi Tanaka
  • Journal:
    Proceedings of the International Astronomical Union / Volume 12 / Issue S331 / February 2017
    Published online by Cambridge University Press:
    17 October 2017, pp. 51-56
    Print publication:
    February 2017
    • Article
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  • We investigate the relation between the emission properties of supernova shock breakout in the circumstellar matter (CSM) and the behavior of the shock. Using a Monte-Carlo method, we examine how the light curve and spectrum depends on the asphericity of the shock and bulk-Compton scattering, and compare the results with the observed properties of X-ray outburst (XRO) 080109/SN 2008D. We found that the rise and decay time of the X-ray light curve do not significantly depend on the degree of shock asphericity and the viewing angle in a steady and spherically symmetric CSM. The observed X-light curve and spectrum of XRO 080109 can be reproduced by considering the shock with a radial velocity of 60% of the speed of light, and the wind mass loss rate is about 5 × 10−4M⊙.