Experimental signatures of gravitational wave bursters

Journal Article · Wed Jun 15 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.124003· OSTI ID:20709547

Dubath, Florian; Foffa, Stefano; Gasparini, Maria Alice; Maggiore, Michele; Sturani, Riccardo ^[1]

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1. Departement de Physique Theorique, Universite de Geneve, 24 quai Ansermet, CH-1211 Geneva 4 (Switzerland)

Gravitational wave bursters are sources which emit repeatedly bursts of gravitational waves, and have been recently suggested as potentially interesting candidates for gravitational wave (GW) detectors. Mechanisms that could give rise to a GW burster can be found for instance in highly magnetized neutron stars (the 'magnetars' which explain the phenomenon of soft gamma repeaters), in accreting neutron stars and in hybrid stars with a quark core. We point out that these sources have very distinctive experimental signatures. In particular, as already observed in the {gamma}-ray bursts from soft gamma repeaters, the energy spectrum of the events is a power-law, dN{approx}E{sup -{gamma}}dE with {gamma}{approx_equal}1.6, and they have a distribution of waiting times (the times between one outburst and the next) significantly different from the distribution of uncorrelated events. We discuss possible detection strategies that could be used to search for these events in existing gravitational wave detectors.

• OSTI ID: 20709547
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMIC GAMMA BURSTS
COSMOLOGY
DETECTION
DISTRIBUTION
ENERGY SPECTRA
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
NEUTRON STARS
QUARKS