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

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
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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

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

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

year = "2017",

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doi = "10.1017/S1743921317004872",

language = "English",

volume = "12",

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journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

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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 - Radiative transfer

KW - Scattering

KW - Supernovae: general

KW - Supernovae: individual (SN 2008D)

KW - X-rays: individual (XRO 080109)

KW - methods: numerical

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DO - 10.1017/S1743921317004872

M3 - Article

AN - SCOPUS:85047118082

VL - 12

SP - 51

EP - 56

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

SN - 1743-9213

IS - S331

ER -

Properties of X-ray emission of an aspherical shock breakout

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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