Two-Dimensional Correlation Function of Binary Black Hole Coalescences
Abstract
We compute the two-dimensional correlation functions of the binary black hole coalescence detections in LIGO-Virgo’s first and second observation runs. The sky distribution of binary black hole coalescence events is tested for correlations at different angular scales by comparing the observed correlation function to two reference functions that are obtained from mock datasets of localization error regions uniformly distributed in the sky. No excess correlation at any angular scale is found. The power-law slope of the correlation function is estimated to be γ = 2.24 ± 0.33 at the three-σ confidence level, a value consistent with the measured distribution of galaxies.
Recommended Citation
M. Cavaglia and A. Modi, "Two-Dimensional Correlation Function of Binary Black Hole Coalescences," Universe, vol. 6, no. 7, MDPI, Jul 2020.
The definitive version is available at https://doi.org/10.3390/UNIVERSE6070093
Department(s)
Physics
Keywords and Phrases
Black holes; Gravitational waves; Universe large-scale structure
International Standard Serial Number (ISSN)
2218-1997
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2020 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
07 Jul 2020
Comments
National Science Foundation, Grant LIGO-P2000157