Challenging the Forward Shock Model with the 80 Ms Follow up of the X-ray Afterglow of Gamma-Ray Burst 130427A

Journal
Date Issued
2017
Author(s)
De Pasquale, Massimiliano
•
Page, Mathew
•
Kann, David
•
Oates, Samantha
•
Schulze, Steve
•
Zhang, Bing
•
Cano, Zach
•
Gendre, Bruce
•
Malesani, Daniele
•
•
Gehrels, Neil
•
Troja, Eleonora
•
•
Boër, Michel
•
DOI
Abstract
GRB 130427A was the most luminous gamma-ray burst detected in the last 30 years. With an isotropic energy output of 8.5 × 10 53 erg and redshift of 0.34, it combined very high energetics with a relative proximity to Earth in an unprecedented way. Sensitive X-ray observatories such as XMM-Newton and Chandra have detected the afterglow of this event for a record-breaking baseline longer than 80 million seconds. The light curve displays a simple power-law over more than three decades in time. In this presentation, we explore the consequences of this result for a few models put forward so far to interpret GRB 130427A, and more in general the implication of this outcome in the context of the standard forward shock model.
Volume
5
Issue
1
Start page
6
Uri
Url
Issn Identifier
2075-4434
Ads BibCode
2017Galax...5....6D
Rights
open.access
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