Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges

Autores
Dominguez Feldman, Juan Ignacio; Pereyra, Luis Alberto; Hansen, Frode K.; Toscano, Facundo Nicolás; Garcia Lambas, Diego Rodolfo
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recent papers have reported an unexplained cooling of CMB photons passing through galaxies in nearby cosmic filaments z < 0.02 at the > 5σ level. Here we show for the first time that this effect is also present at higher redshifts 0.02 < z < 0.04. Instead of calculating the CMB temperature around individual galaxies as in previous works, we analyze mean CMB temperature profiles associated to cosmic filaments in three dimensions. We have considered different thresholds in the linear K-band luminosity density of the filaments as a proxy to mass density. Furthermore, we have analyzed the dependence of the results on the average orientation of filaments with respect to the line of sight. These studies were implemented to test the expected dependence on mass density as well as on photon trajectory length within the cosmic filaments. We find a 3 − 4σ detection of a CMB temperature decrement trend towards the spine of the filaments, the larger the mass and the more radially oriented the filament, the stronger the CMB temperature decrement. This trend is seen independently in both redshift ranges 0.004 < z < 0.02 and 0.02 < z < 0.04. We therefore conclude that our results provide strong evidence for a lower CMB temperature along massive cosmic filaments in the nearby universe z < 0.04.
Fil: Dominguez Feldman, Juan Ignacio. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Pereyra, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Hansen, Frode K.. University of Oslo; Noruega
Fil: Toscano, Facundo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Materia
Filaments
CMB
Temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/288702
Acceder
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spelling Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift rangesDominguez Feldman, Juan IgnacioPereyra, Luis AlbertoHansen, Frode K.Toscano, Facundo NicolásGarcia Lambas, Diego RodolfoFilamentsCMBTemperaturehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Recent papers have reported an unexplained cooling of CMB photons passing through galaxies in nearby cosmic filaments z < 0.02 at the > 5σ level. Here we show for the first time that this effect is also present at higher redshifts 0.02 < z < 0.04. Instead of calculating the CMB temperature around individual galaxies as in previous works, we analyze mean CMB temperature profiles associated to cosmic filaments in three dimensions. We have considered different thresholds in the linear K-band luminosity density of the filaments as a proxy to mass density. Furthermore, we have analyzed the dependence of the results on the average orientation of filaments with respect to the line of sight. These studies were implemented to test the expected dependence on mass density as well as on photon trajectory length within the cosmic filaments. We find a 3 − 4σ detection of a CMB temperature decrement trend towards the spine of the filaments, the larger the mass and the more radially oriented the filament, the stronger the CMB temperature decrement. This trend is seen independently in both redshift ranges 0.004 < z < 0.02 and 0.02 < z < 0.04. We therefore conclude that our results provide strong evidence for a lower CMB temperature along massive cosmic filaments in the nearby universe z < 0.04.Fil: Dominguez Feldman, Juan Ignacio. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Pereyra, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Hansen, Frode K.. University of Oslo; NoruegaFil: Toscano, Facundo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaAmerican Physical Society2026-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/288702Dominguez Feldman, Juan Ignacio; Pereyra, Luis Alberto; Hansen, Frode K.; Toscano, Facundo Nicolás; Garcia Lambas, Diego Rodolfo; Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges; American Physical Society; Physical Review D; 113; 4; 2-2026; 1-132470-00102470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/s1v4-3ckyinfo:eu-repo/semantics/altIdentifier/doi/10.1103/s1v4-3ckyinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:35:01Zoai:ri.conicet.gov.ar:11336/288702instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:35:02.192CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
title Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
spellingShingle Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
Dominguez Feldman, Juan Ignacio
Filaments
CMB
Temperature
title_short Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
title_full Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
title_fullStr Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
title_full_unstemmed Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
title_sort Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges
dc.creator.none.fl_str_mv Dominguez Feldman, Juan Ignacio
Pereyra, Luis Alberto
Hansen, Frode K.
Toscano, Facundo Nicolás
Garcia Lambas, Diego Rodolfo
author Dominguez Feldman, Juan Ignacio
author_facet Dominguez Feldman, Juan Ignacio
Pereyra, Luis Alberto
Hansen, Frode K.
Toscano, Facundo Nicolás
Garcia Lambas, Diego Rodolfo
author_role author
author2 Pereyra, Luis Alberto
Hansen, Frode K.
Toscano, Facundo Nicolás
Garcia Lambas, Diego Rodolfo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Filaments
CMB
Temperature
topic Filaments
CMB
Temperature
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recent papers have reported an unexplained cooling of CMB photons passing through galaxies in nearby cosmic filaments z < 0.02 at the > 5σ level. Here we show for the first time that this effect is also present at higher redshifts 0.02 < z < 0.04. Instead of calculating the CMB temperature around individual galaxies as in previous works, we analyze mean CMB temperature profiles associated to cosmic filaments in three dimensions. We have considered different thresholds in the linear K-band luminosity density of the filaments as a proxy to mass density. Furthermore, we have analyzed the dependence of the results on the average orientation of filaments with respect to the line of sight. These studies were implemented to test the expected dependence on mass density as well as on photon trajectory length within the cosmic filaments. We find a 3 − 4σ detection of a CMB temperature decrement trend towards the spine of the filaments, the larger the mass and the more radially oriented the filament, the stronger the CMB temperature decrement. This trend is seen independently in both redshift ranges 0.004 < z < 0.02 and 0.02 < z < 0.04. We therefore conclude that our results provide strong evidence for a lower CMB temperature along massive cosmic filaments in the nearby universe z < 0.04.
Fil: Dominguez Feldman, Juan Ignacio. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Pereyra, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Hansen, Frode K.. University of Oslo; Noruega
Fil: Toscano, Facundo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
description Recent papers have reported an unexplained cooling of CMB photons passing through galaxies in nearby cosmic filaments z < 0.02 at the > 5σ level. Here we show for the first time that this effect is also present at higher redshifts 0.02 < z < 0.04. Instead of calculating the CMB temperature around individual galaxies as in previous works, we analyze mean CMB temperature profiles associated to cosmic filaments in three dimensions. We have considered different thresholds in the linear K-band luminosity density of the filaments as a proxy to mass density. Furthermore, we have analyzed the dependence of the results on the average orientation of filaments with respect to the line of sight. These studies were implemented to test the expected dependence on mass density as well as on photon trajectory length within the cosmic filaments. We find a 3 − 4σ detection of a CMB temperature decrement trend towards the spine of the filaments, the larger the mass and the more radially oriented the filament, the stronger the CMB temperature decrement. This trend is seen independently in both redshift ranges 0.004 < z < 0.02 and 0.02 < z < 0.04. We therefore conclude that our results provide strong evidence for a lower CMB temperature along massive cosmic filaments in the nearby universe z < 0.04.
publishDate 2026
dc.date.none.fl_str_mv 2026-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/288702
Dominguez Feldman, Juan Ignacio; Pereyra, Luis Alberto; Hansen, Frode K.; Toscano, Facundo Nicolás; Garcia Lambas, Diego Rodolfo; Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges; American Physical Society; Physical Review D; 113; 4; 2-2026; 1-13
2470-0010
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/288702
identifier_str_mv Dominguez Feldman, Juan Ignacio; Pereyra, Luis Alberto; Hansen, Frode K.; Toscano, Facundo Nicolás; Garcia Lambas, Diego Rodolfo; Cosmic filaments confirm unexplained CMB temperature decrements in two independent redshift ranges; American Physical Society; Physical Review D; 113; 4; 2-2026; 1-13
2470-0010
2470-0029
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/s1v4-3cky
info:eu-repo/semantics/altIdentifier/doi/10.1103/s1v4-3cky
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.265058

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