Document Type
Article
Publication Date
8-5-2022
Abstract
We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2 M⊙ and 1.0 M⊙ in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0.14 yr−1. This implies an upper limit on the merger rate of subsolar binaries in the range [220−24200] Gpc−3 yr−1, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we find that the fraction of dark matter in primordial black holes in the mass range 0.2 M⊙
Recommended Citation
Abbott, R., et al. "Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO’s and Advanced Virgo’s Third Observing Run." Physical Review Letters 129.6 (2022): 061104. https://doi.org/10.1103/PhysRevLett.129.061104
Publication Title
Physical Review Letters
DOI
10.1103/PhysRevLett.129.061104
Comments
© 2022 American Physical Society. Original published version available at https://doi.org/10.1103/PhysRevLett.129.061104