Jet breakouts and photospheric emissions in rotating collapsing massive stars

Hiroki Nagakura, Hirotaka Ito, Kenta Kiuchi, Shoichi Yamada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publicationAIP Conference Proceedings
    Pages334-337
    Number of pages4
    Volume1358
    DOIs
    Publication statusPublished - 2011
    EventGamma Ray Bursts 2010, GRB 2010 - Annapolis, MD
    Duration: 2010 Nov 12010 Nov 4

    Other

    OtherGamma Ray Bursts 2010, GRB 2010
    CityAnnapolis, MD
    Period10/11/110/11/4

    Fingerprint

    massive stars
    injection
    shock waves
    time measurement
    propagation
    gravitational collapse
    stellar winds
    photosphere
    relativistic effects
    optical thickness
    light curve
    envelopes

    Keywords

    • Gamma-ray burst

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Nagakura, H., Ito, H., Kiuchi, K., & Yamada, S. (2011). Jet breakouts and photospheric emissions in rotating collapsing massive stars. In AIP Conference Proceedings (Vol. 1358, pp. 334-337) https://doi.org/10.1063/1.3621800

    Jet breakouts and photospheric emissions in rotating collapsing massive stars. / Nagakura, Hiroki; Ito, Hirotaka; Kiuchi, Kenta; Yamada, Shoichi.

    AIP Conference Proceedings. Vol. 1358 2011. p. 334-337.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Nagakura, H, Ito, H, Kiuchi, K & Yamada, S 2011, Jet breakouts and photospheric emissions in rotating collapsing massive stars. in AIP Conference Proceedings. vol. 1358, pp. 334-337, Gamma Ray Bursts 2010, GRB 2010, Annapolis, MD, 10/11/1. https://doi.org/10.1063/1.3621800
    Nagakura H, Ito H, Kiuchi K, Yamada S. Jet breakouts and photospheric emissions in rotating collapsing massive stars. In AIP Conference Proceedings. Vol. 1358. 2011. p. 334-337 https://doi.org/10.1063/1.3621800
    Nagakura, Hiroki ; Ito, Hirotaka ; Kiuchi, Kenta ; Yamada, Shoichi. / Jet breakouts and photospheric emissions in rotating collapsing massive stars. AIP Conference Proceedings. Vol. 1358 2011. pp. 334-337
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