About: Searching for anisotropy in the distribution of binary black hole mergers

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Searching for anisotropy in the distribution of binary black hole mergers
Creator	Banagiri, Sharan Lasky, Paul Payne, Ethan Thrane, Eric
source	ArXiv
abstract	The standard model of cosmology is underpinned by the assumption of the statistical isotropy of the Universe. Observations of the cosmic microwave background, galaxy distributions, and supernovae, among other media, support the assumption of isotropy at scales $/gtrsim 100$/,Mpc. The recent detections of gravitational waves from merging stellar-mass binary black holes provide a new probe of anisotropy; complementary and independent of all other probes of the matter distribution in the Universe. We present an analysis using a spherical harmonic model to determine the level of anisotropy in the first LIGO/Virgo transient catalog. We find that the ten binary black hole mergers within the first transient catalog are consistent with an isotropic distribution. We carry out a study of simulated events to assess the prospects for future probes of anisotropy. Within a single year of operation, third-generation gravitational-wave observatories will probe anisotropies with an angular scale of $/sim36^/circ$ at the level of $/lesssim0.1/%$.
has issue date	2020-06-22(xsd:dateTime)
has license	arxiv
sha1sum (hex)	e13e137051b850711e2c8b6a4ac22c1d8ac82ec7
resource representing a document's title	Searching for anisotropy in the distribution of binary black hole mergers
resource representing a document's body	covid:e13e137051b850711e2c8b6a4ac22c1d8ac82ec7#body_text
is schema:about of	named entity 'OBSERVATIONS' named entity 'EVENTS' named entity 'STANDARD' named entity '100' named entity 'consistent' »more»

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