A universal scaling for short and long gamma-ray bursts: EX,iso−Eγ                         ,iso−Epk

M. G. Bernardini; Raffaella Margutti; E. Zaninoni; G. Chincarini

A universal scaling for short and long gamma-ray bursts: E_X,iso−E_γ _,iso−E_pk

M. G. Bernardini^*, Raffaella Margutti, E. Zaninoni, G. Chincarini

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

Abstract

The comprehensive statistical analysis of Swift X-ray light-curves, collecting data from six years of operation, revealed the existence of a universal scaling among the isotropic energy emitted in the rest frame 1 − 10⁴ keV energy band during the prompt emission (E_γ _,iso), the rest frame peak of the prompt emission energy spectrum (E_pk), and the X-ray energy emitted in the rest frame 0.3 − 30 keV observed energy band (E_X,iso). We show that this scaling is shared by long, short, and low-energetic GRBs, and thus reflects the existence of some properties which are shared by the GRB class as a whole. A simpler and more physically intuitive form the relation could be expressed is as a two-parameter correlation between the GRB efficiency and E_pk.

Original language	English (US)
Journal	Proceedings of Science
Volume	2012-May
State	Published - Jan 1 2012
Event	2012 Gamma-Ray Bursts Conference, GRB 2012 - Munich, Germany Duration: May 7 2012 → May 11 2012

ASJC Scopus subject areas

General

Cite this

@article{6dd7cc42f909478db831521b79af8423,

title = "A universal scaling for short and long gamma-ray bursts: EX,iso−Eγ ,iso−Epk",

abstract = "The comprehensive statistical analysis of Swift X-ray light-curves, collecting data from six years of operation, revealed the existence of a universal scaling among 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). We show that this scaling is shared by long, short, and low-energetic GRBs, and thus reflects the existence of some properties which are shared by the GRB class as a whole. A simpler and more physically intuitive form the relation could be expressed is as a two-parameter correlation between the GRB efficiency and Epk.",

author = "Bernardini, {M. G.} and Raffaella Margutti and E. Zaninoni and G. Chincarini",

year = "2012",

month = jan,

day = "1",

language = "English (US)",

volume = "2012-May",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "2012 Gamma-Ray Bursts Conference, GRB 2012 ; Conference date: 07-05-2012 Through 11-05-2012",

}

TY - JOUR

T1 - A universal scaling for short and long gamma-ray bursts

T2 - 2012 Gamma-Ray Bursts Conference, GRB 2012

AU - Bernardini, M. G.

AU - Margutti, Raffaella

AU - Zaninoni, E.

AU - Chincarini, G.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - The comprehensive statistical analysis of Swift X-ray light-curves, collecting data from six years of operation, revealed the existence of a universal scaling among 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). We show that this scaling is shared by long, short, and low-energetic GRBs, and thus reflects the existence of some properties which are shared by the GRB class as a whole. A simpler and more physically intuitive form the relation could be expressed is as a two-parameter correlation between the GRB efficiency and Epk.

AB - The comprehensive statistical analysis of Swift X-ray light-curves, collecting data from six years of operation, revealed the existence of a universal scaling among 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). We show that this scaling is shared by long, short, and low-energetic GRBs, and thus reflects the existence of some properties which are shared by the GRB class as a whole. A simpler and more physically intuitive form the relation could be expressed is as a two-parameter correlation between the GRB efficiency and Epk.

UR - http://www.scopus.com/inward/record.url?scp=85052382248&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85052382248&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85052382248

SN - 1824-8039

VL - 2012-May

JO - Proceedings of Science

JF - Proceedings of Science

Y2 - 7 May 2012 through 11 May 2012

ER -

A universal scaling for short and long gamma-ray bursts: E_X,iso−E_γ _,iso−E_pk

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this