Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910
Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910
We present a search for continuous gravitational-wave emission due to r-modes in the pulsar PSR J0537-6910 using data from the LIGO-Virgo Collaboration observing run O3. PSR J0537-6910 is a young energetic X-ray pulsar and is the most frequent glitcher known. The inter-glitch braking index of the pulsar suggests that gravitational-wave emission due to r-mode oscillations may play an important role in the spin evolution of this pulsar. Theoretical models confirm this possibility and predict emission at a level that can be probed by ground-based detectors. In order to explore this scenario, we search for r-mode emission in the epochs between glitches by using a contemporaneous timing ephemeris obtained from NICER data. We do not detect any signals in the theoretically expected band of 86-97 Hz, and report upper limits on the amplitude of the gravitational waves. Our results improve on previous amplitude upper limits from r-modes in J0537-6910 by a factor of up to 3 and place stringent constraints on theoretical models for r-mode-driven spin-down in PSR J0537-6910, especially for higher frequencies at which our results reach below the spin-down limit defined by energy conservation.
Gravitational waves, Neutron stars, Pulsars
Abbott, R.
596f7546-a1cd-45ea-bbd4-9151f287086d
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
The LIGO Scientific Collaboration and the Virgo Collaboration
23 November 2021
Abbott, R.
596f7546-a1cd-45ea-bbd4-9151f287086d
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
The LIGO Scientific Collaboration and the Virgo Collaboration
(2021)
Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910.
The Astrophysical Journal, 922 (1), [71].
(doi:10.3847/1538-4357/ac0d52).
Abstract
We present a search for continuous gravitational-wave emission due to r-modes in the pulsar PSR J0537-6910 using data from the LIGO-Virgo Collaboration observing run O3. PSR J0537-6910 is a young energetic X-ray pulsar and is the most frequent glitcher known. The inter-glitch braking index of the pulsar suggests that gravitational-wave emission due to r-mode oscillations may play an important role in the spin evolution of this pulsar. Theoretical models confirm this possibility and predict emission at a level that can be probed by ground-based detectors. In order to explore this scenario, we search for r-mode emission in the epochs between glitches by using a contemporaneous timing ephemeris obtained from NICER data. We do not detect any signals in the theoretically expected band of 86-97 Hz, and report upper limits on the amplitude of the gravitational waves. Our results improve on previous amplitude upper limits from r-modes in J0537-6910 by a factor of up to 3 and place stringent constraints on theoretical models for r-mode-driven spin-down in PSR J0537-6910, especially for higher frequencies at which our results reach below the spin-down limit defined by energy conservation.
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Accepted/In Press date: 29 April 2021
Published date: 23 November 2021
Keywords:
Gravitational waves, Neutron stars, Pulsars
Identifiers
Local EPrints ID: 453207
URI: http://eprints.soton.ac.uk/id/eprint/453207
ISSN: 0004-637X
PURE UUID: 6ad0c776-3c0f-46f8-9fa4-6fa6ab50618a
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Date deposited: 11 Jan 2022 17:30
Last modified: 17 Mar 2024 02:48
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Contributors
Author:
R. Abbott
Corporate Author: The LIGO Scientific Collaboration and the Virgo Collaboration
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