Properties of X-ray emission of an aspherical shock breakout

Yukari Ohtani; Akihiro Suzuki; Toshikazu Shigeyama; Masaomi Tanaka

doi:10.1017/S1743921317004872

Properties of X-ray emission of an aspherical shock breakout

Yukari Ohtani, Akihiro Suzuki, Toshikazu Shigeyama, Masaomi Tanaka

SCI - Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	51-56
Number of pages	6
Journal	Proceedings of the International Astronomical Union
Volume	12
Issue number	S331
DOIs	https://doi.org/10.1017/S1743921317004872
Publication status	Published - 2017 Feb 1

Keywords

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

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title = "Properties of X-ray emission of an aspherical shock breakout",

abstract = "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⊙.",

keywords = "methods: numerical, Radiative transfer, Scattering, Supernovae: general, Supernovae: individual (SN 2008D), X-rays: individual (XRO 080109)",

author = "Yukari Ohtani and Akihiro Suzuki and Toshikazu Shigeyama and Masaomi Tanaka",

note = "Publisher Copyright: {\textcopyright} 2017 International Astronomical Union.",

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doi = "10.1017/S1743921317004872",

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TY - JOUR

T1 - Properties of X-ray emission of an aspherical shock breakout

AU - Ohtani, Yukari

AU - Suzuki, Akihiro

AU - Shigeyama, Toshikazu

AU - Tanaka, Masaomi

PY - 2017/2/1

Y1 - 2017/2/1

N2 - 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⊙.

AB - 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⊙.

KW - methods: numerical

KW - Radiative transfer

KW - Scattering

KW - Supernovae: general

KW - Supernovae: individual (SN 2008D)

KW - X-rays: individual (XRO 080109)

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VL - 12

SP - 51

EP - 56

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S331

ER -

Properties of X-ray emission of an aspherical shock breakout

Abstract

Keywords

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