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Two-Dimensional Correlation Function of Binary Black Hole Coalescences

1
Institute of Multi-messenger Astrophysics and Cosmology, Missouri University of Science and Technology, Physics Building, 1315 N. Pine St., Rolla, MO 65409, USA
2
Caddo Parish Magnet High School, 1601 Viking Dr., Shreveport, LA 71101, USA
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Author to whom correspondence should be addressed.
Universe 2020, 6(7), 93; https://doi.org/10.3390/universe6070093
Received: 20 May 2020 / Revised: 24 June 2020 / Accepted: 3 July 2020 / Published: 7 July 2020
(This article belongs to the Section Compact Objects)
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. View Full-Text
Keywords: gravitational waves; Universe large-scale structure; black holes gravitational waves; Universe large-scale structure; black holes
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MDPI and ACS Style

Cavaglià, M.; Modi, A. Two-Dimensional Correlation Function of Binary Black Hole Coalescences. Universe 2020, 6, 93. https://doi.org/10.3390/universe6070093

AMA Style

Cavaglià M, Modi A. Two-Dimensional Correlation Function of Binary Black Hole Coalescences. Universe. 2020; 6(7):93. https://doi.org/10.3390/universe6070093

Chicago/Turabian Style

Cavaglià, Marco, and Ashini Modi. 2020. "Two-Dimensional Correlation Function of Binary Black Hole Coalescences" Universe 6, no. 7: 93. https://doi.org/10.3390/universe6070093

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