Report
Search for continuous gravitational waves from HESS~J1427-608 with a hidden Markov model
| العنوان: | Search for continuous gravitational waves from HESS~J1427-608 with a hidden Markov model |
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| المؤلفون: | Beniwal, Deeksha, Clearwater, Patrick, Dunn, Liam, Strang, Lucy, Rowell, Gavin, Melatos, Andrew, Ottaway, David |
| سنة النشر: | 2022 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology |
| الوصف: | 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 semi-coherent algorithm, which combines the maximum likelihood $\mathcal{F}$~statistic with a hidden Markov model to efficiently detect and track quasi-monochromatic signals that wander randomly in frequency. It uses data from the second observing run of the Advanced Laser Interferometer Gravitational-Wave Observatory. Multi-wavelength 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 $h_0^{95\%}$ (for circularly polarized signals) at $95\%$ confidence level in sample sub-bands and interpolate it to estimate the sensitivity in the full band. We find $h_0^{95\%} = 1.3\times 10^{-25}$ near 185~Hz. The implied constraints on the ellipticity and \textit{r}-mode amplitude reach $\epsilon\leq 10^{-5}$ and $\alpha \leq 10^{-3}$ at 200~Hz, respectively. Comment: 16 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.106.103018 |
| URL الوصول: | http://arxiv.org/abs/2210.09592 |
| رقم الانضمام: | edsarx.2210.09592 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.106.103018 |
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