Gamma-Ray Bursts: Restarting the Engine | Zendy

A. R. King | Zendy; P. T. O’Brien | Zendy; M. R. Goad | Zendy; J. P. Osborne | Zendy; E. Olsson | Zendy; K. L. Page | Zendy

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Gamma-Ray Bursts: Restarting the Engine

Author(s) -

A. R. King,

P. T. O’Brien,

M. R. Goad,

J. P. Osborne,

E. Olsson,

K. L. Page

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/496881

Subject(s) - astrophysics , physics , fragmentation (computing) , gamma ray burst , accretion disc , accretion (finance) , astronomy , core (optical fiber) , computer science , optics , operating system

Recent gamma-ray burst observations have revealed late-time, highly energeticevents which deviate from the simplest expectations of the standard fireballpicture. Instead they may indicate that the central engine is active orrestarted at late times. We suggest that fragmentation and subsequent accretionduring the collapse of a rapidly rotating stellar core offers a naturalmechanism for this.Comment: 8 pages, 1 figure; accepted by ApJ Letter

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