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https://hdl.handle.net/2440/137353
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Type: | Journal article |
Title: | Search for continuous gravitational waves from HESS J1427-608 with a hidden Markov model |
Author: | Beniwal, D. Clearwater, P. Dunn, L. Strang, L. Rowell, G. Melatos, A. Ottaway, D. |
Citation: | Physical Review D, 2022; 106(10):103018-1-103018-15 |
Publisher: | American Physical Society |
Issue Date: | 2022 |
ISSN: | 2470-0010 2470-0029 |
Statement of Responsibility: | Deeksha Beniwal, Patrick Clearwater, Liam Dunn, Lucy Strang, Gavin Rowell, Andrew Melatos, and David Ottaway |
Abstract: | We present a search for continuous gravitational-wave signals from an unidentified pulsar potentially poweringHESS J1427-608, a spatially unresolvedTeVpoint source detected by the HighEnergy Stereoscopic System (HESS). The search uses a semicoherent algorithm, which combines the maximum likelihood F statistic with a hidden Markov model to efficiently detect and track quasimonochromatic signals that wander randomly in frequency. It uses data from the second observing run of the Advanced Laser Interferometer Gravitational-Wave Observatory. Multiwavelength observations of the HESS source are combined with the proprieties of the population of TeV-bright pulsar wind nebulae to constrain the search parameters.We find no evidence of gravitational-wave emission from this target.We set upper limits on the characteristic wave strain h95% 0 (for circularly polarized signals) at95%confidence level in sample subbands and interpolate it to estimate the sensitivity in the full band. We find h95% 0 ¼ 1.3 × 10−25 near 185 Hz. The implied constraints on the ellipticity and r-mode amplitude reach ϵ ≤ 10−5 and α ≤ 10−3 at 200 Hz, respectively. |
Description: | Published 15 November 2022 |
Rights: | © 2022 American Physical Society |
DOI: | 10.1103/physrevd.106.103018 |
Grant ID: | http://purl.org/au-research/grants/arc/CE170100004 |
Published version: | http://dx.doi.org/10.1103/physrevd.106.103018 |
Appears in Collections: | IPAS publications Physics publications |
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