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ID: 426897.0, MPI für Gravitationsphysik / Astrophysical Relativity
Detecting gravitational waves from accreting neutron stars
Authors:Watts, Anna L.; Krishnan, Badri
Date of Publication (YYYY-MM-DD):2009-04-01
Title of Journal:Advances in Space Research
Volume:43
Issue / Number:7
Start Page:1049
End Page:1054
Review Status:not specified
Audience:Not Specified
Abstract / Description:The gravitational waves emitted by neutron stars carry unique information about their structure and composition. Direct detection of these gravitational waves, however, is a formidable technical challenge. In a recent study we quantified the hurdles facing searches for gravitational waves from the known accreting neutron stars, given the level of uncertainty that exists regarding spin and orbital parameters. In this paper we reflect on our conclusions, and issue an open challenge to the theoretical community to consider how searches should be designed to yield the most astrophysically interesting upper limits. With this in mind we examine some more optimistic emission scenarios involving spin-down, and show that there are technically feasible searches, particularly for the accreting millisecond pulsars, that might place meaningful constraints on torque mechanisms. We finish with a brief discussion of prospects for indirect detection.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:ISSN:0273-1177
DOI:10.1016/j.asr.2009.01.006
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