Searches for continuous gravitational waves from neutron stars: A twenty-year retrospective
arXiv:2305.07106 · doi:10.1016/j.astropartphys.2023.102880
Abstract
Seven years after the first direct detection of gravitational waves, from the collision of two black holes, the field of gravitational wave astronomy is firmly established. A first detection of continuous gravitational waves from rapidly-spinning neutron stars could be the field's next big discovery. I review the last twenty years of efforts to detect continuous gravitational waves using the LIGO and Virgo gravitational wave detectors. I summarise the model of a continuous gravitational wave signal, the challenges to finding such signals in noisy data, and the data analysis algorithms that have been developed to address those challenges. I present a quantitative analysis of 297 continuous wave searches from 80 papers, published from 2003 to 2022, and compare their sensitivities and coverage of the signal model parameter space.
arXiv comment45 pages, 10 figures, 3 tables. Invited review for special issue of Astroparticle Physics: 'Gravitational Waves and Multi-messenger Astrophysics'. Corrected following corrigendum (DOI:10.1016/j.astropartphys.2026.103229). Updated figures and data available at https://cw-vista.streamlit.app/
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