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|Title:||Searches for continuous gravitational waves from 15 supernova remnants and Fomalhaut b with Advanced LIGO|
|Citation:||The Astrophysical Journal, 2019; 875(2):122-1-122-15|
|Publisher:||American Astronomical Society; IOP Publishing|
|B.P. Abbott … D. Beniwal … D.D. Brown … H. Cao … A.A. Ciobanu … M.R. Ganija … C. Ingram … W. Kim … E.J. King … J. Munch … S. Ng … D.J. Ottaway … P.J. Veitch … et al.|
|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.|
|Keywords:||Gravitational waves; ISM: supernova remnants; stars: neutron|
|Rights:||© 2019. The American Astronomical Society. All rights reserved.|
|Appears in Collections:||Physics publications|
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