Directed search for continuous gravitational waves from the Galactic center
Name
Aasi-2013-Directed search for.pdf
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Author(s)
Aggarwal, Nancy
Barnum, Sam
Barsotti, Lisa
Essick, Reed Clasey
Isogai, Tomoki
Katsavounidis, Erotokritos
Kissel, Jeffrey S.
Kwee, Patrick
Lee, J.
Matichard, Fabrice
Date Issued
November 2013
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aasi, J., J. Abadie, B. P. Abbott, R. Abbott, T. Abbott, M. R. Abernathy, T. Accadia, et al. “Directed search for continuous gravitational waves from the Galactic center.” Physical Review D 88, no. 10 (November 2013). © 2013 American Physical Society
Version
Final published version
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 × 10[superscript −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 ~3.35 × 10[superscript −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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
LIGO (Observatory : Massachusetts Institute of Technology)
MIT Kavli Institute for Astrophysics and Space Research
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Article 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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.88.102002
