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We derive the luminosity function and redshift distribution of short Gamma Ray Bursts (SGRBs) using (i) all the available observer-frame constraints (i.e. peak flux, fluence, peak energy and duration distributions) of the large population…

In this paper, we study the luminosity function and formation rate of short gamma-ray bursts (sGRBs). Firstly, we derive the $E_p-L_p$ correlation using 16 sGRBs with redshift measurements and determine the pseudo redshifts of 284 Fermi…

高能天体物理现象 · 物理学 2018-01-10 G. Q. Zhang , F. Y. Wang

In this paper, we systematically investigate the redshift and luminosity distributions as well as the event rates of short Gamma-Ray Bursts (SGRBs) detected by Swift, Fermi, Konus-wind satellites. It is found that the distributions of…

高能天体物理现象 · 物理学 2025-06-03 X. Y. Du , Z. B. Zhang , W. C. Du , G. A. Li , Y. Liu , H. C. Liu

We present a carefully selected sample of short gamma-ray bursts (SGRBs) observed by the Swift satellite up to June 2013. Inspired by the criteria we used to build a similar sample of bright long GRBs (the BAT6 sample), we selected SGRBs…

Short gamma-ray bursts (SGRBs) observed by {\it Swift} are potentially revealing the first insight into cataclysmic compact object mergers. To ultimately acquire a fundamental understanding of these events requires pan-spectral observations…

宇宙学与河外天体物理 · 物理学 2015-06-04 David Coward , Eric Howell , Tsvi Piran , Giulia Stratta , Marica Branchesi , Omer Bromberg , Bruce Gendre , Ronald Burman , Dafne Guetta

We analyzed correlations among the rest frame spectral peak energy $E_{\rm p}$, the observed frame 64ms peak isotropic luminosity $L_{\rm p}$ and the isotropic energy $E_{\rm iso}$ for 13 Short Gamma Ray Burst (SGRB) candidates having the…

高能天体物理现象 · 物理学 2015-06-11 Ryo Tsutsui , Daisuke Yonetoku Takashi Nakamura , Keitaro Takahashi , Yoshiyuki Morihara

Recent observational and theoretical results suggest that Short-duration Gamma-Ray Bursts (SGRBs) are originated by the merger of compact binary systems of two neutron stars or a neutron star and a black hole. The observation of SGRBs with…

宇宙学与河外天体物理 · 物理学 2013-04-10 Carlo Enrico Petrillo , Alexander Dietz , Marco Cavaglià

The binary neutron star merger responsible for the gravitational wave event, GW170817, strengthened the merger association with short-duration gamma-ray bursts (SGRBs) following the detection of the SGRB counterpart, GRB 170817A. Here we…

高能天体物理现象 · 物理学 2019-08-02 Soheb Mandhai , Nial Tanvir , Gavin Lamb , Andrew Levan , David Tsang

Originating from neutron star-neutron star (NS-NS) or neutron star-black hole (NS-BH) mergers, short gamma-ray bursts (SGRBs) are the first electromagnetic emitters associated with gravitational waves. This association makes the…

高能天体物理现象 · 物理学 2021-06-30 Maria Giovanna Dainotti , Vahe' Petrosian , Luke Bowden

Using the BATSE peak flux distribution we rederive the short GRBs luminosity function and compare it with the observed redshift distribution of long bursts. We show that both distributions are compatible with the assumption that short as…

天体物理学 · 物理学 2009-11-10 Dafne Guetta , Tsvi Piran

Starting with models for the compact object merger event rate, the short-duration Gamma-ray Burst (sGRB) luminosity function, and the Swift/BAT detector, we calculate the observed Swift sGRB rate and its uncertainty. Our probabilistic sGRB…

高能天体物理现象 · 物理学 2023-05-31 Tzvetelina A. Dimitrova , Nathaniel R. Butler , Srihari Ravi

We show that the time variability of a gamma-ray burst (GRB) appears to be correlated with the absolute luminosity of the burst: smooth bursts are intrinsically less luminous. This Cepheid-like relationship can be used to determine the…

天体物理学 · 物理学 2007-05-23 E. E. Fenimore , E. Ramirez-Ruiz

Short Gamma Ray Bursts (SGRB) are believed to originate from the merger of two compact objects. If this scenario is correct, SGRB will be accompanied by the emission of strong gravitational waves, detectable by current or planned GW…

宇宙学与河外天体物理 · 物理学 2009-04-03 Alexander Dietz

Swift/BAT has detected ~ 200 long-duration GRBs, with redshift measurements for ~50 of them. We derive the luminosity function (Phi^{HL}) and the local event rate (rho_0^{HL}) of the conventional high luminosity (HL) GRBs by using the…

天体物理学 · 物理学 2011-02-11 Enwei Liang , Bing Zhang , Francisco Virgili , Z. G. Dai

Detection of short gamma-ray bursts (SGRBs) is critically important for the research of compact object mergers and multi-messenger astrophysics, but a significant part of SGRBs fall below the trigger threshold of GRB detectors, and thus are…

Luminosity of GRB 170817A is much lower than that of other sGRBs. The measurement of the superluminal movement of the radio afterglow emission confirms the presence of the relativistic jet, and the emission features can be well explained by…

高能天体物理现象 · 物理学 2020-06-05 Qi Guo , Daming Wei , Yuanzhu Wang

Several luminosity indicators have been found for Gamma-Ray Bursts (GRBs) wherein measurable light curve and spectral properties are well-correlated with the peak luminosity. Several papers have each applied one different luminosity…

天体物理学 · 物理学 2009-11-13 Teresa Ashcraft , Bradley E. Schaefer

In this work, we analyze the most recent short gamma-ray burst (sGRB) sample detected by the \emph{Fermi} satellite to reassess the sGRB luminosity function and formation rate. Using the empirical redshift-luminosity correlation, we first…

高能天体物理现象 · 物理学 2025-09-03 Chong-Yu Gao , Jun-Jie Wei , Hou-Dun Zeng

The Burst and Transient Source Experiment (BATSE) classifies cosmological gamma-ray bursts (GRBs) into short (less than 2 s) and long (over 2 s) events, commonly attributed to mergers of compact objects and, respectively, peculiar…

高能天体物理现象 · 物理学 2015-06-23 Maurice H. P. M. van Putten , Gyeong Min Lee , Massimo Della Valle , Lorenzo Amati , Amir Levinson

We are constructing a program to estimate the redshifts for GRBs from the original Swift light curves and spectra, aiming to get redshifts for the Swift bursts \textit{without} spectroscopic or photometric redshifts. We derive the…

宇宙学与河外天体物理 · 物理学 2014-11-20 Limin Xiao , Bradley E. Schaefer
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