Impact of dark matter spikes on the merger rates of Primordial Black Holes

Mergers of Primordial Black Holes (PBHs) may contribute to the gravitational wave mergers detected by the LIGO-Virgo-KAGRA (LVK) Collaboration. We study the dynamics of PBH binaries dressed with dark matter (DM) spikes, for PBHs with extended mass functions. We analyze the impact of DM spikes on the...

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Detalles Bibliográficos
Autores: Jangra, Pratibha, Kavanagh, Bradley J., Diego, José María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/349620
Acceso en línea:http://hdl.handle.net/10261/349620
Access Level:acceso abierto
Palabra clave:Dark matter theory
Gravitational waves
Surveys
Primordial black holes
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spelling Impact of dark matter spikes on the merger rates of Primordial Black HolesJangra, PratibhaKavanagh, Bradley J.Diego, José MaríaDark matter theoryGravitational wavesSurveysPrimordial black holesMergers of Primordial Black Holes (PBHs) may contribute to the gravitational wave mergers detected by the LIGO-Virgo-KAGRA (LVK) Collaboration. We study the dynamics of PBH binaries dressed with dark matter (DM) spikes, for PBHs with extended mass functions. We analyze the impact of DM spikes on the orbital parameters of the PBH binaries formed in the early Universe and calculate their merger rates at the age of the Universe today. We consider two possible scenarios for the dynamics of the dressed binaries: assuming that either the DM spikes are completely evaporated from the binaries before merger or they remain static until the merger. Contrary to previous studies, we find that the presence of spikes may increase or decrease the present-day PBH merger rates, in some cases dramatically. Comparing with merger rates reported by the LVK Collaboration in the third Gravitational Wave Transient Catalog (GWTC-3), we derive approximate constraints on the fraction of Solar-mass PBHs in cold dark matter as fpbh ≤ Script O(10-5–10-3), depending on the mass function. Our calculations are valid only for the idealized scenarios in which the DM spikes are either evaporated or static. However, they suggest that the impact of DM spikes on PBH merger rates may be more complicated than previously thought and motivate the development of a more general description of the merger dynamics, including feedback of the DM spikes in highly eccentric PBH binaries.Pratibha Jangra acknowledges support of project PGC2018-101814-B-100 (MCIU/AEI/ MINECO/FEDER, UE) Ministerio de Ciencia, Investigación y Universidades. This project was funded by the Agencia Estatal de Investigación, Unidad de Excelencia María de Maeztu, ref. MDM-2017-0765. BJK also acknowledges funding from the Ramón y Cajal Grant RYC2021-034757-I, financed by MCIN/AEI/10.13039/501100011033 and by the European Union “NextGenerationEU”/PRTR.Peer reviewedIOP PublishingMinisterio de Ciencia, Innovación y Universidades (España)Ministerio de Ciencia e Innovación (España)European CommissionAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/349620reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-101814-B-I00info:eu-repo/grantAgreement/AEI//MDM-2017-0765info:eu-repo/grantAgreement/AEI//RYC2021-034757-Ihttps://doi.org/10.1088/1475-7516/2023/11/069Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3496202026-05-22T06:33:51Z
dc.title.none.fl_str_mv Impact of dark matter spikes on the merger rates of Primordial Black Holes
title Impact of dark matter spikes on the merger rates of Primordial Black Holes
spellingShingle Impact of dark matter spikes on the merger rates of Primordial Black Holes
Jangra, Pratibha
Dark matter theory
Gravitational waves
Surveys
Primordial black holes
title_short Impact of dark matter spikes on the merger rates of Primordial Black Holes
title_full Impact of dark matter spikes on the merger rates of Primordial Black Holes
title_fullStr Impact of dark matter spikes on the merger rates of Primordial Black Holes
title_full_unstemmed Impact of dark matter spikes on the merger rates of Primordial Black Holes
title_sort Impact of dark matter spikes on the merger rates of Primordial Black Holes
dc.creator.none.fl_str_mv Jangra, Pratibha
Kavanagh, Bradley J.
Diego, José María
author Jangra, Pratibha
author_facet Jangra, Pratibha
Kavanagh, Bradley J.
Diego, José María
author_role author
author2 Kavanagh, Bradley J.
Diego, José María
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Ministerio de Ciencia e Innovación (España)
European Commission
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Dark matter theory
Gravitational waves
Surveys
Primordial black holes
topic Dark matter theory
Gravitational waves
Surveys
Primordial black holes
description Mergers of Primordial Black Holes (PBHs) may contribute to the gravitational wave mergers detected by the LIGO-Virgo-KAGRA (LVK) Collaboration. We study the dynamics of PBH binaries dressed with dark matter (DM) spikes, for PBHs with extended mass functions. We analyze the impact of DM spikes on the orbital parameters of the PBH binaries formed in the early Universe and calculate their merger rates at the age of the Universe today. We consider two possible scenarios for the dynamics of the dressed binaries: assuming that either the DM spikes are completely evaporated from the binaries before merger or they remain static until the merger. Contrary to previous studies, we find that the presence of spikes may increase or decrease the present-day PBH merger rates, in some cases dramatically. Comparing with merger rates reported by the LVK Collaboration in the third Gravitational Wave Transient Catalog (GWTC-3), we derive approximate constraints on the fraction of Solar-mass PBHs in cold dark matter as fpbh ≤ Script O(10-5–10-3), depending on the mass function. Our calculations are valid only for the idealized scenarios in which the DM spikes are either evaporated or static. However, they suggest that the impact of DM spikes on PBH merger rates may be more complicated than previously thought and motivate the development of a more general description of the merger dynamics, including feedback of the DM spikes in highly eccentric PBH binaries.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/349620
url http://hdl.handle.net/10261/349620
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-101814-B-I00
info:eu-repo/grantAgreement/AEI//MDM-2017-0765
info:eu-repo/grantAgreement/AEI//RYC2021-034757-I
https://doi.org/10.1088/1475-7516/2023/11/069
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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