MG14 - Talk detail |
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Participant |
Bernardini, Maria Grazia | |||||||
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Institution |
INAF - Osservatorio di Brera - via Emilio Bianchi 46 - Merate - Lombardia - Italy | |||||||
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Session |
NS5 |
Accepted |
Yes |
Order |
2 |
Time |
15:00 | 25' + 5' |
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Talk |
Oral abstract |
Title |
Gamma-Ray Bursts And Magnetars: Observational Signatures And Predictions | |||||
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Abstract |
Newly-born millisecond magnetars are competing with black holes as source of the gamma-ray burst (GRB) power, mainly with their rotational energy reservoir. In ten years of activity, Swift has provided compelling observational evidences supporting the magnetar central engine, as the presence of a plateau phase in the X-ray light curve and the precursor and flaring activity. We review the major observational evidences for the possible presence of a newly-born magnetar as the central engine for long GRBs. We then discuss about the possibility that all GRBs are powered by magnetars, and we propose a unification scheme that accommodates both magnetars and black holes, connected to the different properties and energetics of GRBs. |
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Pdf file |
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