Ten years of Swift: A universal scaling for short and long gamma-ray bursts (EX,iso-Eγ,iso-Epk)

Elena Zaninoni*, Maria Grazia Bernardini, Raffaella Margutti, Lorenzo Amati

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

From the comprehensive statistical analysis of Swift X-ray light-curves collected from the launch of the Swift satellite until the end of 2010, we found a three-parameter correlation between the isotropic energy emitted in the rest frame 1-104 keV energy band during the prompt emission (Eγ,iso), the rest frame peak of the prompt emission energy spectrum (Epk), and the X-ray energy emitted in the rest frame 0.3-30 keV observed energy band (EX,iso), computed excluding the contribution of the flares. The importance of this scaling law is that it is followed by both long and short GRBs, and, at the same time, involves prompt and afterglow emission quantities. Therefore there are some properties which are shared by long and short GRBs as a whole. We updated this correlation considering all GRBs observed until June 2014, confirming the existence of this scaling law, and examining some particular GRBs, as 090426 and 100816A. We also discuss the physics that is driving this correlation.

Original languageEnglish (US)
Title of host publication2nd ICRANet Cesar Lattes Meeting
Subtitle of host publicationSupernovae, Neutron Stars and Black Holes, CL 2015
EditorsRemo Ruffini, Ulisses Barres de Almeida, Gregory Vereshchagin, Cesar Augusto Zen Vasconcellos, Pascal Chardonnet, Rodrigo Picanco Negreiros, Jorge Rueda
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413405
DOIs
StatePublished - Dec 17 2015
Event2nd Cesar Lattes Meeting: Supernovae, Neutron Stars and Black Holes, CL 2015 - Rio de Janeiro, Niteroi, Joao Pessoa, Recife, Fortaleza, Brazil
Duration: Apr 13 2015Apr 22 2015

Publication series

NameAIP Conference Proceedings
Volume1693
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other2nd Cesar Lattes Meeting: Supernovae, Neutron Stars and Black Holes, CL 2015
CountryBrazil
CityRio de Janeiro, Niteroi, Joao Pessoa, Recife, Fortaleza
Period4/13/154/22/15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Zaninoni, E., Bernardini, M. G., Margutti, R., & Amati, L. (2015). Ten years of Swift: A universal scaling for short and long gamma-ray bursts (EX,iso-Eγ,iso-Epk). In R. Ruffini, U. Barres de Almeida, G. Vereshchagin, C. A. Z. Vasconcellos, P. Chardonnet, R. P. Negreiros, & J. Rueda (Eds.), 2nd ICRANet Cesar Lattes Meeting: Supernovae, Neutron Stars and Black Holes, CL 2015 [050008] (AIP Conference Proceedings; Vol. 1693). American Institute of Physics Inc.. https://doi.org/10.1063/1.4937201