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Related papers: The Second Swift BAT Gamma-Ray Burst Catalog

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We present the first Swift Burst Alert Telescope (BAT) catalog of gamma-ray bursts (GRBs), which contains bursts detected by the BAT between 2004 December 19 and 2007 June 16. This catalog (hereafter BAT1 catalog) contains burst trigger…

To date, the Burst Alert Telescope (BAT) onboard Swift has detected ~ 1000 gamma-ray bursts (GRBs), of which ~ 360 GRBs have redshift measurements, ranging from z = 0.03 to z = 9.38. We present the analyses of the BAT-detected GRBs for the…

Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longer than about 2 seconds. There are, however, some indications for the existence of a third type of burst. Swift satellite…

High Energy Astrophysical Phenomena · Physics 2009-07-20 I. Horvath , L. G. Balazs , Z. Bagoly , J. Kelemen , P. Veres , G. Tusnady

Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longer than about 2 seconds. There are, however, some indications for the existence of a third one. Swift satellite detectors…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 István Horváth , Lajos G. Balázs , Péter Veres

A comprehensive study is given to short gamma-ray bursts (sGRBs) in the third Swift/BAT GRB Catalog from December 2004 to July 2019. We examine in details the temporal properties of the three components in the prompt gamma-ray emission…

High Energy Astrophysical Phenomena · Physics 2021-03-17 X. J. Li , Z. B. Zhang , X. L. Zhang , H. Y. Zhen

The majority of Swift gamma-ray bursts (GRBs) observed at z > 6 have prompt durations of T90 < 30s, which, at first sight, is surprising given that cosmological time-dilation means this corresponds to < 5s in their rest frames. We have…

High Energy Astrophysical Phenomena · Physics 2015-06-17 O. M. Littlejohns , N. R. Tanvir , R. Willingale , P. A. Evans , P. T. O'Brien , A. J. Levan

We study time-resolved spectra of the prompt emission of Swift Gamma-ray bursts (GRB). Our goal is to see if previous BATSE claims of the existence of a large amount of spectra with the low energy photon indices harder than 2/3 are…

High Energy Astrophysical Phenomena · Physics 2015-05-13 V. Savchenko , A. Neronov

Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longer than about 2 seconds. There are, however, some indications for the existence of a third class. Swift satellite…

Astrophysics · Physics 2008-10-01 I. Horvath , L. G. Balazs , Z. Bagoly , P. Veres

Two classes of gamma-ray bursts were identified in the BATSE catalogs characterized by their durations. There were also some indications for the existence of a third type of gamma-ray bursts. Swift satellite detectors have different…

High Energy Astrophysical Phenomena · Physics 2009-12-21 I. Horvath , Z. Bagoly , L. G. Balazs , G. Tusnady , P. Veres

We present a systematic spectral analysis of 350 bright Gamma-Ray Bursts (GRBs) observed with the Burst and Transient Source Experiment (BATSE; $\sim$ 30 keV -- 2 MeV) with high temporal and spectral resolution. Our sample was selected from…

We calculate the average power density spectra (PDS) of 244 long gamma-ray bursts detected with the Swift Burst Alert Telescope in the 15-150 keV band from January 2005 to August 2011. For the first time we derived the average PDS in the…

High Energy Astrophysical Phenomena · Physics 2015-06-04 C. Guidorzi , R. Margutti , L. Amati , S. Campana , M. Orlandini , P. Romano , M. Stamatikos , G. Tagliaferri

We searched for anomalously long GRBs (GRBs) in the archival records of the Burst and Transient Sources Experiment (BATSE). Ten obvious superlong (>500 s) GRBs with almost continuous emission episodes were found. Nine of these events are…

Astrophysics · Physics 2015-06-24 Yana Tikhomirova , Boris E. Stern

We report on the first completely simultaneous observation of a gamma-ray burst (GRB) using an array of Imaging Atmospheric Cherenkov Telescopes which is sensitive to photons in the very-high-energy (VHE) gamma-ray range (>~100 GeV). On…

Astrophysics · Physics 2008-12-18 HESS Collaboration , F. Aharonian

We present a systematic spectral analysis of 350 bright GRBs observed with BATSE, with high spectral and temporal resolution. Our sample was selected from the complete set of 2704 BATSE GRBs, and included 17 short GRBs. To obtain…

The Large Area Telescope (LAT) aboard the $Fermi$ spacecraft routinely observes high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog of LAT-detected GRBs, covering the first 10 years of operations, from 2008…

High Energy Astrophysical Phenomena · Physics 2019-06-28 M. Axelsson , E. Bissaldi , N. Omodei , G. Vianello

We report the systematic analysis of the durations for Swift gamma-ray bursts (GRBs) and compare the results with those of pre-Swift data. For 95 GRBs with known redshift, we show that the observed durations have two lognormal distributions…

Astrophysics · Physics 2009-11-13 Zhi-Bin Zhang , Chul-Sung Choi

The Burst Alert Telescope (BAT) is one of 3 instruments on the Swift MIDEX spacecraft to study gamma-ray bursts (GRBs). The BAT first detects the GRB and localizes the burst direction to an accuracy of 1-4 arcmin within 20 sec after the…

In the Second part of The Konus-Wind Catalog of Gamma-Ray Bursts with Known Redshifts (first part: Tsvetkova et al. 2017; T17), we present the results of a systematic study of gamma-ray bursts (GRBs) with reliable redshift estimates…

High Energy Astrophysical Phenomena · Physics 2021-02-19 A. Tsvetkova , D. Frederiks , D. Svinkin , R. Aptekar , T. L. Cline , S. Golenetskii , K. Hurley , A. Lysenko , A. Ridnaia , M. Ulanov

Being able to quickly select among gamma-ray bursts (GRBs) seen by the Swift satellite those which are high-z candidates would give ground-based observers a better chance to determine a redshift for such distant GRBs. Information about…

High Energy Astrophysical Phenomena · Physics 2009-06-25 T. N. Ukwatta , T. Sakamoto , K. S. Dhuga , W. C. Parke , S. D. Barthelmy , N. Gehrels , M. Stamatikos , J. Tueller

We present the results of our systematic search for extended emission components following initial short gamma-ray burst (GRB) spikes, using Burst and Transient Source Experiment (BATSE) observations. We performed the extended emission…

High Energy Astrophysical Phenomena · Physics 2013-01-17 Zahide Funda Bostanci , Yuki Kaneko , Ersin Gogus
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