Blind-search constraints on the sub-kiloparsec population of continuous gravitational-wave sources

Oct 18, 2023
11 pages
e-Print:
Report number:
  • LIGO-P2300346

Citations per year

202320242025021
Abstract: (arXiv)
We use the latest all-sky continuous gravitational-wave (CW) searches to estimate constraints on the sub-kiloparsec population of unknown neutron stars (NS). We then extend this analysis to the forthcoming LIGO-Virgo-KAGRA observing runs and the third generation (3G) of ground-based interferometric detectors (Einstein Telescope and Cosmic Explorer). We find that sources with ellipticities greater than ϵ107\epsilon \gtrsim 10^{-7} can be well-constrained by current and future detectors regardless of their frequency. 3G detectors will extend these constraints down to ϵ108\epsilon \gtrsim 10^{-8} across the whole sensitive band and ϵ109\epsilon \gtrsim 10^{-9} above 1kHz1\,\textrm{kHz}. We do not expect ϵ108\epsilon \lesssim 10^{-8} sources to be constrained below 1kHz1\,\textrm{kHz}. Finally, we discuss the potential impact of using astronomical priors on all-sky searches in terms of sensitivity and computing cost. The populations here described can be used as a guide to set up future all-sky CW searches.
Note:
  • 11 pages, 7 figures, comments welcome
  • family: 3
  • gravitational radiation
  • sensitivity
  • neutron star
  • interferometer
  • costs
  • Einstein Telescope
  • LIGO
  • VIRGO
  • KAGRA
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