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

Rapidly spinning neutron stars are promising sources of persistent, 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 fo...

Full description

Bibliographic Details
Format: Article
Language:English
Published: American Physical Society (APS), 2022-01-25T14:30:15Z.
Subjects:
Online Access:Get fulltext
LEADER 01596 am a22001453u 4500
001 139688
042 |a dc 
245 0 0 |a All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems 
260 |b American Physical Society (APS),   |c 2022-01-25T14:30:15Z. 
856 |z Get fulltext  |u https://hdl.handle.net/1721.1/139688 
520 |a Rapidly spinning neutron stars are promising sources of persistent, 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 3 - 45 days and projected semimajor axes of 2 - 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. 
546 |a en 
655 7 |a Article 
773 |t 10.1103/PHYSREVD.103.064017 
773 |t Physical Review D