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

Authors

Massimiliano De Pasquale, University College LondonFollow
Matthew Page, University College LondonFollow
David Alexander Kann, Thüringer Landessternwarte TautenburgFollow
Samantha R. Oates, University of WarwickFollow
Steve Schulze, Universidad Católica de ChileFollow
Bing Zhang, University of Nevada, Las VegasFollow
Zach Cano, University of IcelandFollow
Bruce Gendre, University of Virgin IslandsFollow
Daniele Malesani, University of CopenhagenFollow
Andrea Rossi, Istituto Astrofisica Spaziale e Fisica Cosmica di Bologna (INAF)Follow
Neil Gehrels, NASA Goddard Space Flight CenterFollow
Eleonora Troja, NASA Goddard Space Flight CenterFollow
Luigi Piro, Institute of Space Astrophysics and PlanetologyFollow
Michel Boer, CNRS-ARTEMIS, Boulevard de l’ObservatoireFollow
Giulia Stratta, University of UrbinoFollow

Document Type

Article

Publication Date

1-16-2017

Publication Title

Galaxies

Volume

5

Issue

1

First page number:

1

Last page number:

7

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. © 2017 by the authors.

Keywords

Gamma-ray bursts; X-ray afterglows; GRB modeling

Disciplines

Astrophysics and Astronomy

File Format

pdf

File Size

433

Language

English

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.

Repository Citation

De Pasquale, M., Page, M., Kann, D. A., Oates, S. R., Schulze, S., Zhang, B., Cano, Z., Gendre, B., Malesani, D., Rossi, A., Gehrels, N., Troja, E., Piro, L., Boer, M., Stratta, G. (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), 1-7.
http://dx.doi.org/10.3390/galaxies5010006