Searches for Continuous Gravitational Waves from 15 Supernova Remnants and Fomalhaut B with Advanced LIGO

, LIGO Scientific Collaboration and Virgo Collaboration (2019) Searches for Continuous Gravitational Waves from 15 Supernova Remnants and Fomalhaut B with Advanced LIGO. The Astrophysical Journal, 875 (2). ISSN 0004-637X

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Abstract

We describe directed searches for continuous gravitational waves (GWs) from 16 well-localized candidate neutron stars, assuming none of the stars has a binary companion. The searches were directed toward 15 supernova remnants and Fomalhaut b, a directly imaged extrasolar planet candidate that has been suggested to be a nearby old neutron star. Each search covered a broad band of frequencies and first and second time derivatives. After coherently integrating spans of data from the first Advanced LIGO observing run of 3.5–53.7 days per search, applying data-based vetoes, and discounting known instrumental artifacts, we found no astrophysical signals. We set upper limits on intrinsic GW strain as strict as 1 × 10−25, fiducial neutron star ellipticity as strict as 2 × 10−9, and fiducial r-mode amplitude as strict as 3 × 10−8.

Item Type:
Journal Article
Journal or Publication Title:
The Astrophysical Journal
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code:
136304
Deposited By:
Deposited On:
27 Aug 2019 09:25
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Dec 2020 05:52