Properties of X-ray emission of an aspherical shock breakout

Yukari Ohtani, Akihiro Suzuki, Toshikazu Shigeyama, Masaomi Tanaka

Research output: Contribution to journalArticlepeer-review


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 × 10-4 M.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalProceedings of the International Astronomical Union
Issue numberS331
Publication statusPublished - 2017 Feb 1


  • methods: numerical
  • Radiative transfer
  • Scattering
  • Supernovae: general
  • Supernovae: individual (SN 2008D)
  • X-rays: individual (XRO 080109)


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