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Challenging the forward shock model with the 80 Ms follow up of the X-ray afterglow of gamma-ray burst 130427A

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De Pasquale, Massimiliano, Page, Mathew, Kann, David, Oates, S. R., Schulze, Steve, Zhang, Bing, Cano, Zach, Gendre, Bruce, Malesani, Daniele, Rossi, Andrea, Gehrels, Neil, Troja, Eleonora, Piro, Luigi, Boër, Michel and Stratta, Giulia (2017) Challenging the forward shock model with the 80 Ms follow up of the X-ray afterglow of gamma-ray burst 130427A. Galaxies, 5 (1). 6. doi:10.3390/galaxies5010006 ISSN 2075-4434.

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Official URL: http://dx.doi.org/10.3390/galaxies5010006

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Abstract

GRB 130427A was the most luminous gamma-ray burst detected in the last 30 years. With an isotropic energy output of 8.5×1053 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.

Item Type: Journal Article
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title: Galaxies
Publisher: MDPI
ISSN: 2075-4434
Official Date: 16 January 2017
Dates:
DateEvent
16 January 2017Published
26 December 2016Accepted
Volume: 5
Number: 1
Article Number: 6
DOI: 10.3390/galaxies5010006
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)

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