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Related papers: A "Spiffy" Trigger for Gamma-Ray Bursts

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If $\gamma$-ray bursts are at cosmological distances, then not only their constituent pulses but also the intervals between pulses should be time-dilated. Unlike time-dilation measures of pulse emission, intervals would appear to require…

Astrophysics · Physics 2009-10-28 J. P. Norris , J. T. Bonnell , R. J. Nemiroff , J. D. Scargle

One of the major achievements of Swift is the discovery of the erratic X-ray flares harboring nearly half of gamma-ray bursts (GRBs), both for long-duration and short-duration categories, and both for traditional hard GRBs and soft X-ray…

Astrophysics · Physics 2009-11-11 Bing Zhang

A Band function has become the standard spectral function used to describe the prompt emission spectra of gamma-ray bursts (GRBs). However, deviations from this function have previously been observed in GRBs detected by BATSE and in…

Both observational and theoretical rates of binary neutron star coalescence give low prospects for detection of a single event by the initial LIGO/VIRGO interferometers. However, by utilizing at the best all the a priori information on the…

Astrophysics · Physics 2007-05-23 S. Bonazzola , E. Gourgoulhon

Searches for gravitational wave bursts that are triggered by the observation of astronomical events require a different mode of analysis than all-sky, blind searches. For one, much more prior information is usually available in a triggered…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Kazuhiro Hayama , Soumya D. Mohanty , Malik Rakhmanov , Shantanu Desai

Gamma Ray Bursts (GRBs) are unpredictable and brief flashes of gamma rays that occur about once a day in random locations in the sky. Since gamma rays do not penetrate the Earth's atmosphere, they are detected by satellites, which…

High Energy Astrophysical Phenomena · Physics 2015-06-05 A. Gomboc

Detecting high-z GRBs is important for constraining the GRB formation rate, and tracing the history of re-ionization and metallicity of the universe. Based on the current sample of GRBs detected by Swift with known redshifts, we…

Astrophysics · Physics 2009-06-23 T. N. Ukwatta , T. Sakamoto , M. Stamatikos , N. Gehrels , K. S. Dhuga

The clusters of gamma-ray bursts are considered which are assumed to be images of the repeated gamma-ray burst (GRB) sources. It is shown, that localization of the cosmic gamma-ray burst sources (GBS) is determined by the clusters of GRBs.…

Astrophysics · Physics 2007-05-23 A. V. Kuznetsov

We have developed a computer model to calculate gamma ray burst (GRB) light curves and efficiencies from the interaction of a single, thin blast wave with clouds in the external medium. Large amplitude, spiky variability occurs when the…

Astrophysics · Physics 2009-10-31 Charles D. Dermer , Kurt E. Mitman

Joint gravitational-wave (GW) and $\gamma$-ray burst (GRB) observations are among the best prospects for standard siren cosmology. However, the strong selection effect for the coincident GRB detection, which is possible only for sources…

High Energy Astrophysical Phenomena · Physics 2024-12-12 Michele Mancarella , Francesco Iacovelli , Stefano Foffa , Niccolò Muttoni , Michele Maggiore

There are observational facts and theoretical arguments for an origin of gamma-ray bursts in molecular clouds in distant galaxies. If this is true, one could detect a significant flux of GRB prompt and early afterglow X-ray radiation…

Astrophysics · Physics 2009-11-07 S. Sazonov , R. Sunyaev

$\gamma$-ray bursts (GRBs) have puzzled astronomers since their accidental discovery in the sixties. The BATSE detector on COMPTON-GRO satellite has been detecting GRBs for the last four years at a rate of one burst per day. Its findings…

Astrophysics · Physics 2007-05-23 Tsvi Piran

The degree to which gamma ray bursts are collimated is now the dominant uncertainty in their energy requirements and event rates. In this review I begin with the reasons for studying GRB collimation, then discuss existing tests for…

Astrophysics · Physics 2017-08-23 James E. Rhoads

The site and mechanism of gamma-ray burst (GRB) prompt emission is still unknown. Although internal shocks have been widely discussed as the emission site of GRBs, evidence supporting other emission sites have been also suggested recently,…

Astrophysics · Physics 2015-05-13 Nayantara Gupta , Bing Zhang

A number of different methods have been proposed to identify unanticipated burst sources of gravitational waves in data arising from LIGO and other gravitational wave detectors. When confronted with such a wide variety of methods one is…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Amber L. Stuver , Lee Samuel Finn

The measure of the distances and luminosities of gamma-ray bursts (GRBs) led to the discovery that many GRB properties are strongly correlated with their intrinsic luminosity, leading to the construction of reliable luminosity indicators.…

Astrophysics · Physics 2010-11-11 J-L. Atteia

The main technique that has been used to estimate the rate of gravitational wave (gw) bursts is to search for coincidence among times of arrival of candidate events in different detectors. Coincidences are modeled as a (possibly…

Astrophysics · Physics 2014-10-13 Lucio Baggio , Giovanni A. Prodi

To understand the physical mechanisms underlying the prompt emission of gamma-ray bursts (GRB), single FRED (Fast-Rise-Exponential-Decay) profile GRBs serve as an ideal sample, as they origin from single epoch central engine activity. These…

High Energy Astrophysical Phenomena · Physics 2026-03-24 Shu-Xu Yi , Chen-Wei Wang , Shao-Lin Xiong , Shuang-Nan Zhang , Romain Maccary , Rahim Moradi , Shuo Xiao , Hua Feng

We present several filtering methods which can be used as triggers for the detection of gravitational wave bursts in interferometric detectors. All the methods are compared to matched filtering with the help of a figure of merit based on…

General Relativity and Quantum Cosmology · Physics 2007-05-23 N. Arnaud , F. Cavalier , M. Davier , P. Hello , T. Pradier

Gamma-Ray Bursts (GRBs) - short bursts of 100-1MeV photons arriving from random directions in the sky are probably the most relativistic objects discovered so far. Still, somehow they did not attract the attention of the relativistic…

General Relativity and Quantum Cosmology · Physics 2017-08-23 Tsvi Piran
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