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Transient gravitational waves from pulsar post-glitch recoveries

Transient gravitational waves from pulsar post-glitch recoveries
Transient gravitational waves from pulsar post-glitch recoveries
This work explores whether gravitational waves (GWs) from neutron star (NS) mountains can be detected with current 2nd-generation and future 3rd-generation GW detectors. In particular, we focus on a scenario where transient mountains are formed immediately after a NS glitch. In a glitch, a NS's spin frequency abruptly increases and then often exponentially recovers back to, but never quite reaches, the spin frequency prior to the glitch. If the recovery is ascribed to an additional torque due to a transient mountain, we find that GWs from that mountain are marginally-detectable with Advanced LIGO at design sensitivity and is very likely to be detectable for 3rd-generation detectors such as the Einstein Telescope. Using this model, we are able to find analytical expressions for the GW amplitude and its duration in terms of observables.
astro-ph.HE, gr-qc
0035-8711
3138-3152
Yim, Garvin
e99f1832-0e5e-4a9a-ade5-0240de377034
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160
Yim, Garvin
e99f1832-0e5e-4a9a-ade5-0240de377034
Jones, D. I.
b8f3e32c-d537-445a-a1e4-7436f472e160

Yim, Garvin and Jones, D. I. (2020) Transient gravitational waves from pulsar post-glitch recoveries. Monthly Notices of the Royal Astronomical Society, 498 (3), 3138-3152. (doi:10.1093/mnras/staa2534).

Record type: Article

Abstract

This work explores whether gravitational waves (GWs) from neutron star (NS) mountains can be detected with current 2nd-generation and future 3rd-generation GW detectors. In particular, we focus on a scenario where transient mountains are formed immediately after a NS glitch. In a glitch, a NS's spin frequency abruptly increases and then often exponentially recovers back to, but never quite reaches, the spin frequency prior to the glitch. If the recovery is ascribed to an additional torque due to a transient mountain, we find that GWs from that mountain are marginally-detectable with Advanced LIGO at design sensitivity and is very likely to be detectable for 3rd-generation detectors such as the Einstein Telescope. Using this model, we are able to find analytical expressions for the GW amplitude and its duration in terms of observables.

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Transient gravitational waves - Accepted Manuscript
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More information

e-pub ahead of print date: 21 August 2020
Additional Information: 16 pages, 3 figures. Small changes made in response to referee comments. Accepted for publication in MNRAS.
Keywords: astro-ph.HE, gr-qc

Identifiers

Local EPrints ID: 443669
URI: http://eprints.soton.ac.uk/id/eprint/443669
ISSN: 0035-8711
PURE UUID: c96142d2-ce7a-4744-bd32-5f122490979a
ORCID for Garvin Yim: ORCID iD orcid.org/0000-0001-8548-9535
ORCID for D. I. Jones: ORCID iD orcid.org/0000-0002-0117-7567

Catalogue record

Date deposited: 08 Sep 2020 16:30
Last modified: 26 Nov 2021 03:12

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