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First search for long-duration transient gravitational waves after glitches in the Vela and Crab pulsars


Keitel, D and Woan, G and Pitkin, M and Schumacher, C and Pearlstone, B and Riles, K and Lyne, AG and Palfreyman, J and Stappers, B and Weltevrede, P, First search for long-duration transient gravitational waves after glitches in the Vela and Crab pulsars, Physical Review D, 100, (6) Article 064058. ISSN 2470-0010 (2019) [Refereed Article]

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Copyright Statement

2019 American Physical Society

DOI: doi:10.1103/PhysRevD.100.064058


Gravitational waves (GWs) can offer a novel window into the structure and dynamics of neutron stars. Here we present the first search for long-duration quasimonochromatic GW transients triggered by pulsar glitches. We focus on two glitches observed in radio timing of the Vela pulsar (PSR J0835-4510) on 12 December 2016 and the Crab pulsar (PSR J0534+2200) on 27 March 2017, during the Advanced LIGO second observing run (O2). We assume the GW frequency lies within a narrow band around twice the spin frequency as known from radio observations. Using the fully-coherent transient-enabled ℱ -statistic method, we search for transients of up to four months in length. We find no credible GW candidates for either target, and through simulated signal injections we set 90% upper limits on (constant) GW strain as a function of transient duration. For the larger Vela glitch, we come close to beating an indirect upper limit for when the total energy liberated in the glitch would be emitted as GWs, thus demonstrating that similar postglitch searches at improved detector sensitivity can soon yield physical constraints on glitch models.

Item Details

Item Type:Refereed Article
Keywords:gravitational wave detection, neutron stars, pulsars
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Palfreyman, J (Dr Jim Palfreyman)
ID Code:147438
Year Published:2019
Web of Science® Times Cited:13
Deposited By:Physics
Deposited On:2021-11-01
Last Modified:2021-12-08
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