Delayed X-ray afterglows from obscured gamma-ray bursts in star-forming regions

Peter Mészáros, Andrei Gruzinov

    Research output: Contribution to journalArticle

    Abstract

    For gamma-ray bursts occurring in dense star-forming regions, the X-ray afterglow behavior minutes to days after the trigger may be dominated by the small-angle scattering of the prompt X-ray emission off dust grains. We give a simple illustrative model for the X-ray light curves at different X-ray energies and discuss possible implications. A bump followed by a steeper decay in soft X-rays is predicted for bursts that are heavily obscured in the optical.

    Original languageEnglish (US)
    Pages (from-to)L35-L37
    JournalAstrophysical Journal
    Volume543
    Issue number1 PART 2
    DOIs
    StatePublished - Nov 1 2000

    Keywords

    • Gamma rays: bursts
    • Radiation mechanisms: thermal

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

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