Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6398
 Title: Searches for continuous gravitational waves from nine young supernova remnants Authors: Aasi, J.Abbott, B.P.Iyer, B.R.LIGO Scientific Collaboration and Virgo Collaboration+250 Co authors Issue Date: Nov-2015 Publisher: IOP Sciences for The American Astronomical Society Citation: The Astrophysical Journal, 2015, Vol.813, p39 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. Description: Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) URI: http://hdl.handle.net/2289/6398 ISSN: 0004-637X1538-4357-(Online) Alternative Location: http://arxiv.org/abs/1412.5942http://dx.doi.org/10.1088/0004-637X/813/1/39http://adsabs.harvard.edu/abs/2015ApJ...813...39A Copyright: 2015 American Astronomical Society Appears in Collections: Research Papers (TP)

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