Searches for continuous gravitational waves with the LIGO and Virgo detector
Keith Riles (for the LIGO Scientific Collaboration, Virgo, Collaboration)
TL;DR
This paper reviews the joint efforts of LIGO and Virgo collaborations in searching for continuous gravitational waves from known, unknown, and binary neutron stars, highlighting recent results and future prospects.
Contribution
It provides a comprehensive summary of various continuous gravitational wave search strategies and their recent outcomes using LIGO and Virgo data.
Findings
Detection limits for known pulsars improved
No continuous gravitational wave signals detected yet
Future searches with advanced detectors planned
Abstract
The LIGO Scientific Collaboration and Virgo Collaboration have carried out joint searches in LIGO and Virgo data for periodic continuous gravitational waves. These analyses range from targeted searches for gravitational-wave signals from known pulsars, for which precise ephemerides from radio or X-ray observations are used in matched filters, to all-sky searches for unknown neutron stars, including stars in binary systems. Between these extremes lie directed searches for known stars of unknown spin frequency or for new unknown sources at specific locations, such as near the galactic center or in globular clusters. Recent and ongoing searches of each type will be summarized, along with prospects for future searches using data from the Advanced LIGO and Virgo detectors.
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