All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems

Abbott, R. and Angelova, S. V. and Ben Yaala, M. and Gier, C. and Hill, P. and Reid, S. and Wallace, G. S., The LIGO Scientific Collaboration, The Virgo Collaboration (2021) All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems. Physical Review D, 103 (6). 064017. ISSN 1550-2368 (https://doi.org/10.1103/PhysRevD.103.064017)

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Abstract

Rapidly spinning neutron stars are promising sources of continuous gravitational waves. Detecting such a signal would allow probing of the physical properties of matter under extreme conditions. A significant fraction of the known pulsar population belongs to binary systems. Searching for unknown neutron stars in binary systems requires specialized algorithms to address unknown orbital frequency modulations. We present a search for continuous gravitational waves emitted by neutron stars in binary systems in early data from the third observing run of the Advanced LIGO and Advanced Virgo detectors using the semicoherent, GPU-accelerated, binaryskyhough pipeline. The search analyzes the most sensitive frequency band of the LIGO detectors, 50–300 Hz. Binary orbital parameters are split into four regions, comprising orbital periods of three to 45 days and projected semimajor axes of two to 40 light seconds. No detections are reported. We estimate the sensitivity of the search using simulated continuous wave signals, achieving the most sensitive results to date across the analyzed parameter space.

  • Item type:Article
    ID code:76777
    Dates:
    Date
    Event
    12 March 2021
    Published
    3 February 2021
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Engineering > Biomedical Engineering
    Depositing user: Pure Administrator
    Date deposited:15 Jun 2021 14:04
    Last modified:19 Apr 2024 14:37
    URI:https://strathprints.strath.ac.uk/id/eprint/76777
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