2019/07/31 by David Keitel, D. Keitel, G. Woan +15 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astronomy #Astrophysics #Crab Pulsar #Detector #Gamma-ray bursts and supernovae #Glitch #Gravitational wave #LIGO #Neutron star #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Seismic Waves and Analysis #Transient (computer programming) #Vela #astro-ph.HE #gr-qc
paper · pdf · doi:10.1103/physrevd.100.064058
published as Phys. Rev. D 100, 064058 (2019) · 10 pages, 3 figures (incl. appendices). Updated to match version accepted by PRD and fixed a few references
arxiv created 2019/09/18 · openalex publication_date 2019/09/27 · arxiv updated 2019/10/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
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.