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Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants

Author(s)
Abbott, R.Abbott, T. D.Kim, Young-MinAdams C.LIGO Sci CollaborationVirgo Collaboration
Issued Date
2022-04
DOI
10.1103/PhysRevD.105.082005
URI
https://scholarworks.unist.ac.kr/handle/201301/58860
Fulltext
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.082005
Citation
PHYSICAL REVIEW D, v.105, no.8, pp.082005
Abstract
We present directed searches for continuous gravitational waves from the neutron stars in the Cassiopeia
A (Cas A) and Vela Jr. supernova remnants. We carry out the searches in the LIGO detector data from the
first six months of the third Advanced LIGO and Virgo observing run using the WEAVE semicoherent
method, which sums matched-filter detection-statistic values over many time segments spanning the
observation period. No gravitational wave signal is detected in the search band of 20–976 Hz for assumed
source ages greater than 300 years for Cas A and greater than 700 years for Vela Jr. Estimates from
simulated continuous wave signals indicate we achieve the most sensitive results to date across the explored
parameter space volume, probing to strain magnitudes as low as ∼6.3 × 10−26 for Cas A and ∼5.6 × 10−26
for Vela Jr. at frequencies near 166 Hz at 95% efficiency
Publisher
AMER PHYSICAL SOC
ISSN
2470-0010
Keyword
COMPACT CENTRAL OBJECTNEUTRON-STARRADIATIONMOUNTAINS

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