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


Abbott, BP and Abbott, R and Siellez, K and Zweizig, J and The LIGO Scientific Collaboration and the Virgo Collaboration, Searches for Continuous Gravitational Waves from 15 Supernova Remnants and Fomalhaut b with Advanced LIGO, The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics, 875, (2) Article 122. ISSN 0004-637X (2019) [Refereed Article]

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DOI: doi:10.3847/1538-4357/ab113b


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 Details

Item Type:Refereed Article
Keywords:Continuous gravitational waves, supernova remnants, supernova, gravitational waves, Fomalhaut b, LIGO
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:General relativity and gravitational waves
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Siellez, K (Dr Karelle Siellez)
ID Code:151939
Year Published:2019
Web of Science® Times Cited:40
Deposited By:Physics
Deposited On:2022-08-09
Last Modified:2022-08-09

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