Journal article
Search for continuous gravitational waves from HESS J1427-608 with a hidden Markov model
D Beniwal, P Clearwater, L Dunn, L Strang, G Rowell, A Melatos, D Ottaway
Physical Review D | Published : 2022
Abstract
We present a search for continuous gravitational-wave signals from an unidentified pulsar potentially powering HESS J1427-608, a spatially unresolved TeV point source detected by the High Energy 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 s..
View full abstractRelated Projects (1)
Grants
Awarded by Swinburne University of Technology
Funding Acknowledgements
The authors would like to express their gratitude toward Ling Sun, Meg Millhouse, Hannah Middleton, Patrick Meyers, and Julian Carlin for numerous discussions and their ongoing support throughout this project. This research is supported by the Australian Research Council Centre of Excellence for Gravitational Wave Discovery (OzGrav) with Project No. CE170100004. This work used computational resources of the OzSTAR national facility at Swinburne University of Technology. OzSTAR is funded by Swinburne University of Technology and the National Collaborative Research Infrastructure Strategy (NCRIS). This research has made use of data, software, and/or web tools obtained from the Gravitational Wave Open Science Center [73], a service of LIGO Laboratory, the LIGO Scientific Collaboration, and the Virgo Collaboration.