Jet breakouts and photospheric emissions in rotating collapsing massive stars

Hiroki Nagakura*, Hirotaka Ito, Kenta Kiuchi, Shoichi Yamada

*この研究の対応する著者

研究成果: Conference contribution

抄録

We numerically investigated the gravitational collapse of a rapidly rotating massive star and the subsequent propagation of relativistic jets, varying the timing of jet injection. In this study, we pay particular attention to observational consequences of the difference in the timing of jet injection. In order to discuss them, the light curve of photospheric emissions is also calculated by the post process. In calculating optical depths to find the location of the photosphere, we take into account the relativistic effect such as the time retardation accurately. We find that, as a consequence of rotating massive star collapse, the centrifugal shock wave (CSW) is formed, then it propagates outwards and breaks out of the envelope into the stellar wind. Which of the jet and CSW breaks out earlier depends on the timing of jet injection. If the CSW breakout occurs first owing to later jet injection, the jet propagation and subsequent photospheric emissions are affected substantially.

本文言語English
ホスト出版物のタイトルGamma Ray Bursts 2010, GRB 2010
ページ334-337
ページ数4
DOI
出版ステータスPublished - 2011 9 12
イベントGamma Ray Bursts 2010, GRB 2010 - Annapolis, MD, United States
継続期間: 2010 11 12010 11 4

出版物シリーズ

名前AIP Conference Proceedings
1358
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

ConferenceGamma Ray Bursts 2010, GRB 2010
国/地域United States
CityAnnapolis, MD
Period10/11/110/11/4

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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