Imprints of axion superradiance in the CMB

Light axions (ma10-10 eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert...

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Detalles Bibliográficos
Autores: Blas, D., Witte, S.J.
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/231143
Acceso en línea:http://hdl.handle.net/10261/231143
Access Level:acceso abierto
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spelling Imprints of axion superradiance in the CMBBlas, D.Witte, S.J.Light axions (ma10-10 eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert regions of large axion number densities into an enormous flux of low-energy photons. In this work we consider the phenomenological implications of a superradiant axion cloud undergoing resonant decay. We show that the low-energy photons produced from such events will be absorbed over cosmologically short distances, potentially inducing massive shockwaves that heat and ionize the intergalactic medium over Mpc scales. These shockwaves may leave observable imprints in the form of anisotropic spectral distortions or inhomogeneous features in the optical depth.The authors thank Vivian Poulin, Jens Chluba, Thomas Schwetz, Vitor Cardoso, and Paolo Pani for their comments. S. J.W. acknowledges support under the Juan de la Cierva Formación Fellowship.American Physical SocietyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/231143reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1103/PhysRevD.102.103018Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2311432026-05-22T06:33:51Z
dc.title.none.fl_str_mv Imprints of axion superradiance in the CMB
title Imprints of axion superradiance in the CMB
spellingShingle Imprints of axion superradiance in the CMB
Blas, D.
title_short Imprints of axion superradiance in the CMB
title_full Imprints of axion superradiance in the CMB
title_fullStr Imprints of axion superradiance in the CMB
title_full_unstemmed Imprints of axion superradiance in the CMB
title_sort Imprints of axion superradiance in the CMB
dc.creator.none.fl_str_mv Blas, D.
Witte, S.J.
author Blas, D.
author_facet Blas, D.
Witte, S.J.
author_role author
author2 Witte, S.J.
author2_role author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Light axions (ma10-10 eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert regions of large axion number densities into an enormous flux of low-energy photons. In this work we consider the phenomenological implications of a superradiant axion cloud undergoing resonant decay. We show that the low-energy photons produced from such events will be absorbed over cosmologically short distances, potentially inducing massive shockwaves that heat and ionize the intergalactic medium over Mpc scales. These shockwaves may leave observable imprints in the form of anisotropic spectral distortions or inhomogeneous features in the optical depth.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/231143
url http://hdl.handle.net/10261/231143
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.102.103018
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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
repository.name.fl_str_mv
repository.mail.fl_str_mv
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