Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation

Binary black hole (BBH) systems detected via gravitational-wave emission are a recently opened astrophysicalfrontier with many unknowns and uncertainties. Accurate reconstruction of the binary distribution with as fewassumptions as possible is desirable for inference of formation channels and enviro...

Full description

Bibliographic Details
Authors: Sadiq, Jam, Dent, Thomas, Gieles, Mark
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/220829
Online Access:https://hdl.handle.net/2445/220829
Access Level:Open access
Keyword:Ones gravitacionals
Astrofísica
Forats negres (Astronomia)
Gravitational waves
Astrophysics
Black holes (Astronomy)
id ES_53e77721484130232e0e8d3f554697c7
oai_identifier_str oai:recercat.cat:2445/220829
network_acronym_str ES
network_name_str España
repository_id_str
spelling Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density EstimationSadiq, JamDent, ThomasGieles, MarkOnes gravitacionalsAstrofísicaForats negres (Astronomia)Gravitational wavesAstrophysicsBlack holes (Astronomy)Binary black hole (BBH) systems detected via gravitational-wave emission are a recently opened astrophysicalfrontier with many unknowns and uncertainties. Accurate reconstruction of the binary distribution with as fewassumptions as possible is desirable for inference of formation channels and environments. Most populationanalyses have, though, assumed a power law in binary mass ratio q, and/or assumed a universal q distributionregardless of primary mass. Methods based on kernel density estimation allow us to dispense with suchassumptions and directly estimate the joint binary mass distribution. We deploy a self-consistent iterative methodto estimate this full BBH mass distribution, finding local maxima in primary mass consistent with previousinvestigations and a secondary mass distribution with a partly independent structure, inconsistent both with apower law and with a constant function of q. We find a weaker preference for near-equal-mass binaries than inmost previous investigations; instead, the secondary mass has its own “spectral lines” at slightly lower values thanthe primary, and we observe an anticorrelation between primary and secondary masses around the ∼10 Me peak.Institute of Physics (IOP)2025202520242025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion11 p.application/pdfhttps://hdl.handle.net/2445/220829Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/ad0ce6Astrophysical Journal, 2024https://doi.org/10.3847/1538-4357/ad0ce6(c) American Astronomical Society, 2024info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2208292026-05-29T05:05:01Z
dc.title.none.fl_str_mv Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
title Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
spellingShingle Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
Sadiq, Jam
Ones gravitacionals
Astrofísica
Forats negres (Astronomia)
Gravitational waves
Astrophysics
Black holes (Astronomy)
title_short Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
title_full Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
title_fullStr Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
title_full_unstemmed Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
title_sort Binary Vision: The Mass Distribution of Merging Binary Black Holes via Iterative Density Estimation
dc.creator.none.fl_str_mv Sadiq, Jam
Dent, Thomas
Gieles, Mark
author Sadiq, Jam
author_facet Sadiq, Jam
Dent, Thomas
Gieles, Mark
author_role author
author2 Dent, Thomas
Gieles, Mark
author2_role author
author
dc.subject.none.fl_str_mv Ones gravitacionals
Astrofísica
Forats negres (Astronomia)
Gravitational waves
Astrophysics
Black holes (Astronomy)
topic Ones gravitacionals
Astrofísica
Forats negres (Astronomia)
Gravitational waves
Astrophysics
Black holes (Astronomy)
description Binary black hole (BBH) systems detected via gravitational-wave emission are a recently opened astrophysicalfrontier with many unknowns and uncertainties. Accurate reconstruction of the binary distribution with as fewassumptions as possible is desirable for inference of formation channels and environments. Most populationanalyses have, though, assumed a power law in binary mass ratio q, and/or assumed a universal q distributionregardless of primary mass. Methods based on kernel density estimation allow us to dispense with suchassumptions and directly estimate the joint binary mass distribution. We deploy a self-consistent iterative methodto estimate this full BBH mass distribution, finding local maxima in primary mass consistent with previousinvestigations and a secondary mass distribution with a partly independent structure, inconsistent both with apower law and with a constant function of q. We find a weaker preference for near-equal-mass binaries than inmost previous investigations; instead, the secondary mass has its own “spectral lines” at slightly lower values thanthe primary, and we observe an anticorrelation between primary and secondary masses around the ∼10 Me peak.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/220829
url https://hdl.handle.net/2445/220829
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/ad0ce6
Astrophysical Journal, 2024
https://doi.org/10.3847/1538-4357/ad0ce6
dc.rights.none.fl_str_mv (c) American Astronomical Society, 2024
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Astronomical Society, 2024
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11 p.
application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408148242038784
score 15,81155

Similar Items