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All-sky search for periodic gravitational waves in the O1 LIGO data

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.
1550-7998
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

Abbott, B. P. and Jones, David , 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). (doi:10.1103/PhysRevD.96.062002).

Record type: Article

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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More information

Accepted/In Press date: 8 August 2017
e-pub ahead of print date: 12 September 2017

Identifiers

Local EPrints ID: 416950
URI: https://eprints.soton.ac.uk/id/eprint/416950
ISSN: 1550-7998
PURE UUID: 999bfca4-2252-4f5d-8b76-c14195c6bccc

Catalogue record

Date deposited: 15 Jan 2018 17:30
Last modified: 13 Mar 2019 19:02

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