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Model-based Cross-correlation search for gravitational waves from the Low-mass X-Ray binary Scorpius X-1 in LIGO O3 Data
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SYSNO ASEP 0567226 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Model-based Cross-correlation search for gravitational waves from the Low-mass X-Ray binary Scorpius X-1 in LIGO O3 Data Author(s) Abbott, R. (US)
Abe, H. (JP)
Acernese, F. (IT)
Oliveri, Roberto (FZU-D) ORCIDNumber of authors 1692 Article number L30 Source Title Astrophysical Journal Letters. - : Institute of Physics Publishing - ISSN 2041-8205
Roč. 941, č. 2 (2022)Number of pages 19 s. Language eng - English Country GB - United Kingdom Keywords LIGO ; sensitivity ; conservation law ; accretion ; coherence ; VIRGO Subject RIV BE - Theoretical Physics OECD category Particles and field physics Method of publishing Open access Institutional support FZU-D - RVO:68378271 EID SCOPUS 85146226671 DOI 10.3847/2041-8213/aca1b0 Annotation We present the results of a model-based search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1 using LIGO detector data from the third observing run of Advanced LIGO and Advanced Virgo. This is a semicoherent search that uses details of the signal model to coherently combine data separated by less than a specified coherence time, which can be adjusted to balance sensitivity with computing cost. The search covered a range of gravitational-wave frequencies from 25 to 1600 Hz, as well as ranges in orbital speed, frequency, and phase determined from observational constraints. No significant detection candidates were found, and upper limits were set as a function of frequency. The most stringent limits, between 100 and 200 Hz, correspond to an amplitude h 00 of about 10−25−25 when marginalized isotropically over the unknown inclination angle of the neutron star’s rotation axis, or less than 4 × 10−26−26 assuming the optimal orientation. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0339344
Number of the records: 1