期刊
ASTROPHYSICAL JOURNAL
卷 630, 期 2, 页码 L113-L115出版社
IOP PUBLISHING LTD
DOI: 10.1086/496881
关键词
accretion, accretion disks; black hole physics; gamma rays : bursts
Recent gamma-ray burst observations have revealed late-time, highly energetic events that deviate from the simplest expectations of the standard fireball picture. Instead, they may indicate that the central engine is active or restarted at late times. We suggest that fragmentation and subsequent accretion during the collapse of a rapidly rotating stellar core offers a natural mechanism for this.
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