All-sky search for periodic gravitational waves in the O1 LIGO data
All-sky search for periodic gravitational waves in the O1 LIGO data
We report on an all-sky search for periodic gravitational waves in the frequency band 20–475 Hz and with a frequency time derivative in the range of [−1.0,+0.1]×10−8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from Advanced LIGO’s first observational run, O1. No periodic gravitational wave signals were observed, and upper limits were placed on their strengths. The lowest upper limits on worst-case (linearly polarized) strain amplitude h0 are ∼4×10−25 near 170 Hz. For a circularly polarized source (most favorable orientation), the smallest upper limits obtained are ∼1.5×10−25. These upper limits refer to all sky locations and the entire range of frequency derivative values. For a population-averaged ensemble of sky locations and stellar orientations, the lowest upper limits obtained for the strain amplitude are ∼2.5×10−25.
Abbott, B. P.
20b32f53-5355-40eb-9d69-91c95d56e693
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
The LIGO Scientific Collaboration and the Virgo Collaboration
Abbott, B. P.
20b32f53-5355-40eb-9d69-91c95d56e693
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
The LIGO Scientific Collaboration and the Virgo Collaboration
(2017)
All-sky search for periodic gravitational waves in the O1 LIGO data.
Physical Review D, 96 (6), [062002].
(doi:10.1103/PhysRevD.96.062002).
Abstract
We report on an all-sky search for periodic gravitational waves in the frequency band 20–475 Hz and with a frequency time derivative in the range of [−1.0,+0.1]×10−8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from Advanced LIGO’s first observational run, O1. No periodic gravitational wave signals were observed, and upper limits were placed on their strengths. The lowest upper limits on worst-case (linearly polarized) strain amplitude h0 are ∼4×10−25 near 170 Hz. For a circularly polarized source (most favorable orientation), the smallest upper limits obtained are ∼1.5×10−25. These upper limits refer to all sky locations and the entire range of frequency derivative values. For a population-averaged ensemble of sky locations and stellar orientations, the lowest upper limits obtained for the strain amplitude are ∼2.5×10−25.
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Accepted/In Press date: 8 August 2017
e-pub ahead of print date: 12 September 2017
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Local EPrints ID: 416950
URI: http://eprints.soton.ac.uk/id/eprint/416950
ISSN: 1550-7998
PURE UUID: 999bfca4-2252-4f5d-8b76-c14195c6bccc
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Date deposited: 15 Jan 2018 17:30
Last modified: 16 Mar 2024 03:06
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Author:
B. P. Abbott
Corporate Author: The LIGO Scientific Collaboration and the Virgo Collaboration
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