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dc.contributor.authorSun, Ling
dc.contributor.authorBrito, Richard
dc.contributor.authorIsi Banales, Maximiliano S
dc.date.accessioned2020-08-13T21:06:31Z
dc.date.available2020-08-13T21:06:31Z
dc.date.issued2020-03-17
dc.date.submitted2019-09
dc.identifier.issn1550-7998
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.urihttps://hdl.handle.net/1721.1/126574
dc.description.abstractUltralight scalars, if they exist as theorized, could form clouds around rapidly rotating black holes. Such clouds are expected to emit continuous, quasimonochromatic gravitational waves that could be detected by LIGO and Virgo. Here we present results of a directed search for such signals from the Cygnus X-1 binary, using data from Advanced LIGO’s second observing run. We find no evidence of gravitational waves in the 250–750 Hz band. Without incorporating existing measurements of the Cygnus X-1 black hole spin, our results disfavor boson masses in the range 5.8≤μ/(10^{-13}  eV)≤8.6, assuming that the black hole was born 5×10^{6}  years ago with a nearly extremal spin. We then focus on a string axiverse scenario, in which self-interactions enable a cloud for high black-hole spins consistent with measurements for Cygnus X-1. In that model, we constrain the boson masses in the range 9.6≤μ/(10^{-13}  eV)≤15.5 for a decay constant f_{a}∼10^{15}  GeV. Future applications of our methods to other sources will yield improved constraints.en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionof10.1103/PhysRevD.101.063020en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleSearch for ultralight bosons in Cygnus X-1 with Advanced LIGOen_US
dc.typeArticleen_US
dc.identifier.citationSun, Ling, Richard Brito, and Maximiliano Isi. "Search for ultralight bosons in Cygnus X-1 with Advanced LIGO." Physical Review D 101 (March 2020): 063020 ©2020 Author(s)en_US
dc.contributor.departmentLIGO (Observatory : Massachusetts Institute of Technology)en_US
dc.relation.journalPhysical Review Den_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2020-03-17T16:53:39Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsen_US
dspace.date.submission2020-03-17T16:53:38Z
mit.journal.volume101en_US
mit.licensePUBLISHER_POLICY


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