Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data

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dc.contributor.author Papa, Maria Alessandra
dc.contributor.author Eggenstein, Heinz-Bernd
dc.contributor.author Walsh, Sinéad
dc.contributor.author Di Palma, Irene
dc.contributor.author Allen, Bruce
dc.contributor.author Astone, Pia
dc.contributor.author Bock, Oliver
dc.contributor.author Creighton, Teviet D.
dc.contributor.author Keitel, David
dc.contributor.author Machenschalk, Bernd
dc.contributor.author Prix, Reinhard
dc.contributor.author Siemens, Xavier
dc.contributor.author Singh, Avneet
dc.contributor.author Zhu, Sylvia J.
dc.contributor.author Schutz, Bernard F.
dc.date.accessioned 2020-10-29T11:09:26Z
dc.date.available 2020-10-29T11:09:26Z
dc.identifier.uri http://hdl.handle.net/11201/153989
dc.description.abstract [eng] We report results of an all-sky search for periodic gravitational waves with frequency between 50 and 510 Hz from isolated compact objects, i.e. neutron stars. A new hierarchical multi-stage approach is taken, supported by the computing power of the Einstein@Home project, allowing to probe more deeply than ever before. 16 million sub-threshold candidates from the initial search [LVC,arXiv:1606.09619] are followed up in three stages. None of those candidates is consistent with an isolated gravitational wave emitter, and 90% confidence level upper limits are placed on the amplitudes of continuous waves from the target population. Between 170.5 and 171 Hz we set the most constraining 90% confidence upper limit on the strain amplitude h0 at 4.3x10-25 , while at the high end of our frequency range we achieve an upper limit of 7.6x10-25. These are the most constraining all-sky upper limits to date and constrain the ellipticity of rotating compact objects emitting at 300 Hz at a distance D to less than 6x10-7 [d/100pc].
dc.format application/pdf
dc.relation.isformatof Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.94.122006
dc.relation.ispartof Physical Review D, 2016, vol. 94, p. 122006-1-122006-14
dc.subject.classification 53 - Física
dc.subject.other 53 - Physics
dc.title Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2020-10-29T11:09:26Z
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.identifier.doi https://doi.org/10.1103/PhysRevD.94.122006


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