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Searches for continuous gravitational waves from nine young supernova remnants

Searches for continuous gravitational waves from nine young supernova remnants
Searches for continuous gravitational waves from nine young supernova remnants
We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected neutron stars. One target's parameters are uncertain enough to warrant two searches, for a total of 10. Each search covered a broad band of frequencies and first and second frequency derivatives for a fixed sky direction. The searches coherently integrated data from the two LIGO interferometers over time spans from 5.3–25.3 days using the matched-filtering ${\mathcal{F}}$-statistic. We found no evidence of GW signals. We set 95% confidence upper limits as strong (low) as 4 × 10?25 on intrinsic strain, 2 × 10?7 on fiducial ellipticity, and 4 × 10?5 on r-mode amplitude. These beat the indirect limits from energy conservation and are within the range of theoretical predictions for neutron-star ellipticities and r-mode amplitudes.
0004-637X
1-16
Aasi, J.
a1703202-cb8f-41a5-bfcf-57f149364535
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Abbott, R.
ceb7bd1e-f214-46dd-9972-a194692a86aa
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160
LIGO Scientific Collaboration and the Virgo Collaboration
Aasi, J.
a1703202-cb8f-41a5-bfcf-57f149364535
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Abbott, R.
ceb7bd1e-f214-46dd-9972-a194692a86aa
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160

Aasi, J., Abbott, B.P. and Abbott, R. et al. , LIGO Scientific Collaboration and the Virgo Collaboration (2015) Searches for continuous gravitational waves from nine young supernova remnants. The Astrophysical Journal, 813 (1), 1-16. (doi:10.1088/0004-637X/813/1/39).

Record type: Article

Abstract

We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected neutron stars. One target's parameters are uncertain enough to warrant two searches, for a total of 10. Each search covered a broad band of frequencies and first and second frequency derivatives for a fixed sky direction. The searches coherently integrated data from the two LIGO interferometers over time spans from 5.3–25.3 days using the matched-filtering ${\mathcal{F}}$-statistic. We found no evidence of GW signals. We set 95% confidence upper limits as strong (low) as 4 × 10?25 on intrinsic strain, 2 × 10?7 on fiducial ellipticity, and 4 × 10?5 on r-mode amplitude. These beat the indirect limits from energy conservation and are within the range of theoretical predictions for neutron-star ellipticities and r-mode amplitudes.

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Accepted/In Press date: 18 September 2015
Published date: 27 October 2015
Organisations: Applied Mathematics

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Local EPrints ID: 404337
URI: http://eprints.soton.ac.uk/id/eprint/404337
ISSN: 0004-637X
PURE UUID: 44231ec2-a8f7-4795-a26d-0995cb0cd3fd
ORCID for D. I. Jones: ORCID iD orcid.org/0000-0002-0117-7567

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Date deposited: 06 Jan 2017 09:45
Last modified: 17 Dec 2019 01:54

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Author: J. Aasi
Author: B.P. Abbott
Author: R. Abbott
Author: D. I. Jones ORCID iD

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