Polarized Gravitational Waves from Gamma-Ray Bursts

Kobayashi, S.; Mészáros, P.

doi:10.1086/374307

Cited by 39 publications

(40 citation statements)

References 28 publications

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“…Specific detection estimates have been made [229,479] for both the compact binary scenarios and the collapsar scenarios, Both the compact merger and the collapsar models have in common a high angular rotation rate, and observations provide evidence for jet collimation of the photon emission, with properties depending on the polar angle, which may also be of relevance for X-ray flashes. Calculations have been made [230] of the gravitational wave emission and its polarization as a function of angle expected from such sources. The GRB progenitors emit l = m = 2 gravitational waves, which are circularly polarized on the polar axis, while the + polarization dominates on the equatorial plane.…”

Section: Gravitational Wavesmentioning

confidence: 99%

Gamma-ray bursts

2006

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Abstract. Gamma-ray bursts are the most luminous explosions in the Universe, and their origin and mechanism are the focus of intense research and debate. More than three decades after their discovery, and after pioneering breakthroughs from space and ground experiments, their study is entering a new phase with the recently launched Swift satellite. The interplay between these observations and theoretical models of the prompt gamma ray burst and its afterglow is reviewed.

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Section: Gravitational Wavesmentioning

confidence: 99%

Gamma-ray bursts

2006

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“…The mergers of black-hole-neutronstar binaries have been studied by Shibata & Uryū (2006), Shibata & Uryū (2007), , Etienne et al (2008), Duez et al (2008), Yamamoto et al (2008), Shibata et al (2009), Etienne et al (2009), andDuez et al (2010). For other progenitor types, particularly for long GRBs, there are no robust models for the gravitational-wave emission (see, for example, Fryer et al 2002;Kobayashi & Meszaros 2003;van Putten et al 2004;Ott 2009 for possible scenarios). Since our detection algorithm is designed to be sensitive to generic GWBs, we choose simple ad hoc waveforms for tuning and testing.…”

Section: Simulationsmentioning

confidence: 99%

Search for Gravitational-Wave Bursts Associated With Gamma-Ray Bursts Using Data From Ligo Science Run 5 and Virgo Science Run 1

Abbott

Acernese

et al. 2010

ApJ

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We present the results of a search for gravitational-wave bursts (GWBs) associated with 137 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments during the fifth LIGO science run and first Virgo science run. The data used in this analysis were collected from 2005 November 4 to 2007 October 1, and most of the GRB triggers were from the Swift satellite. The search uses a coherent network analysis method that takes into account the different locations and orientations of the interferometers at the three LIGO-Virgo sites. We find no evidence for GWB signals associated with this sample of GRBs. Using simulated short-duration No. 2, 2010 SEARCH FOR GWBs ASSOCIATED WITH GRBs USING LIGO AND VIRGO 1441 (<1 s) waveforms, we set upper limits on the amplitude of gravitational waves associated with each GRB. We also place lower bounds on the distance to each GRB under the assumption of a fixed energy emission in gravitational waves, with a median limit of D ∼ 12 Mpc(E iso GW /0.01 M c 2 ) 1/2 for emission at frequencies around 150 Hz, where the LIGO-Virgo detector network has best sensitivity. We present astrophysical interpretations and implications of these results, and prospects for corresponding searches during future LIGO-Virgo runs.

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“…In addition, if some neutron star mergers are the sources of SGRBs, a collection of joint EM/GW observations would allow an estimate of the SGRB jet opening angle by comparing the number of merger events with and without observable prompt EM emission, and some information would be obtainable even from a single loud event (Kobayashi & Mészáros 2003b;Seto 2007). …”

Section: Investigations Enabled By Joint Gw/em Observationsmentioning

confidence: 99%

Implementation and testing of the first prompt search for gravitational wave transients with electromagnetic counterparts

Abadie

Abbott

et al. 2012

A&A

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Article published by EDP Sciences A124, page 1 of 15 A&A 539, A124 (2012) ABSTRACT Aims. A transient astrophysical event observed in both gravitational wave (GW) and electromagnetic (EM) channels would yield rich scientific rewards. A first program initiating EM follow-ups to possible transient GW events has been developed and exercised by the LIGO and Virgo community in association with several partners. In this paper, we describe and evaluate the methods used to promptly identify and localize GW event candidates and to request images of targeted sky locations. Methods. During two observing periods (Dec. 17, 2009 to Jan. 8, 2010 and Sep. 2 to Oct. 20, 2010, a low-latency analysis pipeline was used to identify GW event candidates and to reconstruct maps of possible sky locations. A catalog of nearby galaxies and Milky Way globular clusters was used to select the most promising sky positions to be imaged, and this directional information was delivered to EM observatories with time lags of about thirty minutes. A Monte Carlo simulation has been used to evaluate the low-latency GW pipeline's ability to reconstruct source positions correctly.Results. For signals near the detection threshold, our low-latency algorithms often localized simulated GW burst signals to tens of square degrees, while neutron star/neutron star inspirals and neutron star/black hole inspirals were localized to a few hundred square degrees. Localization precision improves for moderately stronger signals. The correct sky location of signals well above threshold and originating from nearby galaxies may be observed with ∼50% or better probability with a few pointings of wide-field telescopes.

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Polarized Gravitational Waves from Gamma-Ray Bursts

Cited by 39 publications

References 28 publications

Gamma-ray bursts

Gamma-ray bursts

Search for Gravitational-Wave Bursts Associated With Gamma-Ray Bursts Using Data From Ligo Science Run 5 and Virgo Science Run 1

Implementation and testing of the first prompt search for gravitational wave transients with electromagnetic counterparts

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