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Studies of GRB host galaxies are crucial to understanding GRBs. However, since they are identified by the superposition in the plane of the sky of a GRB afterglow and a galaxy there is always a possibility that an association represents a…

天体物理学 · 物理学 2014-11-18 Bethany E. Cobb , Charles D. Bailyn

Short-duration Gamma-ray bursts (GRBs) (\leq 2{\rm s}) have remained a mystery due to the lack of afterglow detection until recently. The models to interpret short GRBs invoke distinct progenitor scenarios. Here we present a generic…

天体物理学 · 物理学 2009-11-10 Y. Z. Fan , Bing Zhang , Shiho Kobayashi , Peter Meszaros

Gamma-ray bursts (GRBs) display a bimodal duration distribution, with a separation between the short- and long-duration bursts at about 2 sec. The progenitors of long GRBs have been identified as massive stars based on their association…

高能天体物理现象 · 物理学 2015-06-17 Edo Berger

The most popular progenitor model for short duration Gamma-Ray bursts (sGRBs) is the merger of two compact objects. However, the short GRB population exhibit a certain diversity: some bursts display an extended emission (EE), continuing in…

高能天体物理现象 · 物理学 2018-09-26 Nikhil Anand , Mustafa Shahid , Lekshmi Resmi

The study of short-duration gamma-ray bursts (GRBs) has undergone a revolution in recent years thanks to the discovery of the first afterglows and host galaxies in May 2005. In this review we summarize our current knowledge of the galactic…

高能天体物理现象 · 物理学 2009-12-22 Edo Berger , Wen-fai Fong

We calculate the magnification light curves due to stellar microlensing of gamma-ray burst (GRB) afterglows. A GRB source appears on the sky as a thin ring which expands faster than the speed of light and is maximally magnified as it…

天体物理学 · 物理学 2009-10-31 Shude Mao , Abraham Loeb

We investigate the merging rates of compact binaries in galaxies, and the related detection rate of gravitational wave (GW) events with AdvLIGO/Virgo and with the Einstein Telescope. To this purpose, we rely on three basic ingredients: (i)…

星系天体物理 · 物理学 2019-09-04 L. Boco , A. Lapi , S. Goswami , F. Perrotta , C. Baccigalupi , L. Danese

Short duration gamma-ray bursts (SGRBs) are thought to be related to the violent merger of compact objects, such as neutron stars or black holes, which makes them promising sources of gravitational waves. The detection of a 'kilonova'-like…

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

[Abridged] The study of short-duration gamma-ray bursts (GRBs) experienced a complete revolution in recent years thanks to the discovery of the first afterglows and host galaxies in May 2005. These observations demonstrated that short GRBs…

高能天体物理现象 · 物理学 2015-03-17 E. Berger

The hypothesis that short GRBs arise from the coalescence of binary compact stars has recently gained support. With this comes the expectation that the afterglow should bear the characteristic signature of a tenuous intergalactic medium…

高能天体物理现象 · 物理学 2009-04-14 Rion K. Parsons , Enrico Ramirez-Ruiz , William H. Lee

Compact binaries such as double neutron stars or a neutron star paired with a black-hole, are strong sources of gravitational waves during coalescence and also the likely progenitors of various electromagnetic phenomena, notably…

高能天体物理现象 · 物理学 2022-07-01 S. Mandhai , G. P. Lamb , N. R. Tanvir , J. Bray , C. J. Nixon , R. A. J. Eyles-Ferris , A. J. Levan , B. P. Gompertz

Ground-based gravitational-wave detectors like the Advanced LIGO, Advanced Virgo, and KAGRA experiments now regularly witness gravitational waves from compact binary mergers: the relativistic collisions of neutron stars and/or stellar-mass…

高能天体物理现象 · 物理学 2024-10-28 T. A. Callister

We study the properties of short gamma-ray bursts (GRBs), based on the assumption that they are all connected to the binary neutron star mergers, whose formation mechanism contains a large amount of uncertainty. In particular, the merger…

天体物理学 · 物理学 2010-11-15 Shin'ichiro Ando

[abridged] We investigate the afterglow properties and large-scale environments of several short-duration gamma-ray bursts (GRBs) with sub-arcsecond optical afterglow positions but no bright coincident host galaxies. The purpose of this…

高能天体物理现象 · 物理学 2015-05-19 E. Berger

We present results from a search for radio afterglows of compact object mergers conducted with the Australian SKA Pathfinder. We used data from four epochs of the Rapid ASKAP Continuum Survey to search compact binary merger localization…

高能天体物理现象 · 物理学 2025-03-20 Ashna Gulati , Tara Murphy , Dougal Dobie , Adam Deller , David L. Kaplan , Emil Lenc , Ilya Mandel , Stefan Duchesne , Vanessa Moss

Following the historical observations of GW170817 and its multi-wavelength afterglow, more radio afterglows from neutron star mergers are expected in the future as counterparts to gravitational wave inspiral signals. We wish to describe…

高能天体物理现象 · 物理学 2019-10-23 Raphaël Duque , Frédéric Daigne , Robert Mochkovitch

Being able to measure each merger's sky location, distance, component masses, and conceivably spins, ground-based gravitational-wave detectors will provide a extensive and detailed sample of coalescing compact binaries (CCBs) in the local…

宇宙学与河外天体物理 · 物理学 2013-11-13 R. O'Shaughnessy

The first detections of afterglows from short gamma-ray bursts (GRBs) have confirmed the previous suspicion that they are triggered by a different central engine than long bursts. In particular, the recent detections of short GRBs in…

天体物理学 · 物理学 2007-05-23 S. Rosswog

We present an improved search for binary compact-object mergers using a network of ground-based gravitational-wave detectors. We model a volumetric, isotropic source population and incorporate the resulting distribution over signal…

广义相对论与量子宇宙学 · 物理学 2018-05-29 Alexander H. Nitz , Thomas Dent , Tito Dal Canton , Stephen Fairhurst , Duncan A. Brown