Fate of scalar dark matter solitons around supermassive galactic black holes

In scalar-field dark matter scenarios, a scalar-field soliton could form at the center of galactic halos, around the supermassive black holes that sit at the center of galaxies. Focusing on the large scalar-mass limit, where the soliton is formed by the balance between self-gravity and a repulsive s...

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Detalles Bibliográficos
Autores: Brax, Philippe, Valageas, Patrick, Ruiz Cembranos, José Alberto
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/6064
Acceso en línea:https://hdl.handle.net/20.500.14352/6064
Access Level:acceso abierto
Palabra clave:53
Light
Field
Galaxies
Fuzzy.
Física (Física)
22 Física
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oai_identifier_str oai:docta.ucm.es:20.500.14352/6064
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repository_id_str
spelling Fate of scalar dark matter solitons around supermassive galactic black holesBrax, PhilippeValageas, PatrickRuiz Cembranos, José Alberto53LightFieldGalaxiesFuzzy.Física (Física)22 FísicaIn scalar-field dark matter scenarios, a scalar-field soliton could form at the center of galactic halos, around the supermassive black holes that sit at the center of galaxies. Focusing on the large scalar-mass limit, where the soliton is formed by the balance between self-gravity and a repulsive self-interaction, we study the infall of the scalar field onto the central Schwarzschild black hole. We derive the scalar-field profile, from the Schwarzschild radius to the large radii dominated by the scalar cloud. We show that the steady state solution selects the maximum allowed flux, with a critical profile that is similar to the transonic solution obtained for the hydrodynamic case. This finite flux, which scales as the inverse of the self-interaction coupling, is small enough to allow the dark matter soliton to survive for many Hubble times.Amer Physical SocUniversidad Complutense de Madrid20202020-01-2420202020-01-24journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6064reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/60642026-06-02T12:44:21Z
dc.title.none.fl_str_mv Fate of scalar dark matter solitons around supermassive galactic black holes
title Fate of scalar dark matter solitons around supermassive galactic black holes
spellingShingle Fate of scalar dark matter solitons around supermassive galactic black holes
Brax, Philippe
53
Light
Field
Galaxies
Fuzzy.
Física (Física)
22 Física
title_short Fate of scalar dark matter solitons around supermassive galactic black holes
title_full Fate of scalar dark matter solitons around supermassive galactic black holes
title_fullStr Fate of scalar dark matter solitons around supermassive galactic black holes
title_full_unstemmed Fate of scalar dark matter solitons around supermassive galactic black holes
title_sort Fate of scalar dark matter solitons around supermassive galactic black holes
dc.creator.none.fl_str_mv Brax, Philippe
Valageas, Patrick
Ruiz Cembranos, José Alberto
author Brax, Philippe
author_facet Brax, Philippe
Valageas, Patrick
Ruiz Cembranos, José Alberto
author_role author
author2 Valageas, Patrick
Ruiz Cembranos, José Alberto
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 53
Light
Field
Galaxies
Fuzzy.
Física (Física)
22 Física
topic 53
Light
Field
Galaxies
Fuzzy.
Física (Física)
22 Física
description In scalar-field dark matter scenarios, a scalar-field soliton could form at the center of galactic halos, around the supermassive black holes that sit at the center of galaxies. Focusing on the large scalar-mass limit, where the soliton is formed by the balance between self-gravity and a repulsive self-interaction, we study the infall of the scalar field onto the central Schwarzschild black hole. We derive the scalar-field profile, from the Schwarzschild radius to the large radii dominated by the scalar cloud. We show that the steady state solution selects the maximum allowed flux, with a critical profile that is similar to the transonic solution obtained for the hydrodynamic case. This finite flux, which scales as the inverse of the self-interaction coupling, is small enough to allow the dark matter soliton to survive for many Hubble times.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-24
2020
2020-01-24
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6064
url https://hdl.handle.net/20.500.14352/6064
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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