Directed search for continuous gravitational waves from the Galactic center
Aasi, J. and Lockerbie, N. A. and Tokmakov, K. V., LIGO Scientific Collaboration, Virgo Collaboration (2013) Directed search for continuous gravitational waves from the Galactic center. Physical Review D, 88 (10). 102002. ISSN 1550-2368 (https://doi.org/10.1103/PhysRevD.88.102002)
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Abstract
We present the results of a directed search for continuous gravitational waves from unknown, isolated neutron stars in the Galactic center region, performed on two years of data from LIGO's fifth science run from two LIGO detectors. The search uses a semicoherent approach, analyzing coherently 630 segments, each spanning 11.5 hours, and then incoherently combining the results of the single segments. It covers gravitational wave frequencies in a range from 78 to 496 Hz and a frequency-dependent range of first-order spindown values down to -7.86 x 10(-8) Hz/s at the highest frequency. No gravitational waves were detected. The 90% confidence upper limits on the gravitational wave amplitude of sources at the Galactic center are similar to 3.35 x 10(-25) for frequencies near 150 Hz. These upper limits are the most constraining to date for a large-parameter-space search for continuous gravitational wave signals.
ORCID iDs
Aasi, J., Lockerbie, N. A. ORCID: https://orcid.org/0000-0002-1678-3260 and Tokmakov, K. V. ORCID: https://orcid.org/0000-0002-2808-6593;-
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Item type: Article ID code: 50721 Dates: DateEvent18 November 2013PublishedNotes: This article includes numerous authors. Please consult manuscript for full attribution details. J. Aasi et al. (LIGO Scientific Collaboration and Virgo Collaboration) Phys. Rev. D 88, 102002. © 2013 American Physical Society Subjects: Science > Astronomy
Science > PhysicsDepartment: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 09 Dec 2014 16:19 Last modified: 27 Sep 2024 00:49 URI: https://strathprints.strath.ac.uk/id/eprint/50721