Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level

Autores
de Rossi, Maria Emilia; Bromm, Volker
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the contribution of the first galaxies to the far-infrared/sub-millimeter (FIR/sub-mm) extragalactic background light (EBL) by implementing an analytical model for dust emission. We explore different dust models, assuming different grain size distributions and chemical compositions. According to our findings, observed re-radiated emission from dust in dwarf-size galaxies at z~10 would peak at a wavelength of 500μm with observed fluxes of 10^(-3)− 10^(−2) nJy, which is below the capabilities of current observatories. In order to be detectable, model sources at these high redshifts should exhibit luminosities of >10^(12) L_sun, comparable to that of local ultra-luminous systems. The FIR/sub-mm EBL generated by primeval galaxies peaks at 500μm, with an intensity ranging from 10^(−4) to 10^(−3) nW m^(−2) sr^(−1), depending on dust properties. These values are ~ 3 − 4 orders of magnitude below the absolute measured cosmic background level, suggesting that the first galaxies would not contribute significantly to the observed FIR/sub-mm EBL. Our model EBL exhibits a strong correlation with the dust-to-metal ratio, where we assume a fiducial value of D = 0.005, increasing almost proportionally to it. Thus, measurements of the FIR/sub-mm EBL could provide constraints on the amount of dust in the early Universe. Even if the absolute signal from primeval dust emission may be undetectable, it might still be possible to obtain information about it by exploring angular fluctuations at 500μm, close to the peak of dust emission from the first galaxies.
Fil: de Rossi, Maria Emilia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bromm, Volker. University Of Texas At Austin; Estados Unidos
Materia
COSMOLOGY: THEORY
GALAXIES: EVOLUTION
GALAXIES: ABUNDANCES
GALAXIES: HALOES
GALAXIES: HIGH-REDSHIFT
GALAXIES: STAR FORMATION
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:11336/18128
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background levelde Rossi, Maria EmiliaBromm, VolkerCOSMOLOGY: THEORYGALAXIES: EVOLUTIONGALAXIES: ABUNDANCESGALAXIES: HALOESGALAXIES: HIGH-REDSHIFTGALAXIES: STAR FORMATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the contribution of the first galaxies to the far-infrared/sub-millimeter (FIR/sub-mm) extragalactic background light (EBL) by implementing an analytical model for dust emission. We explore different dust models, assuming different grain size distributions and chemical compositions. According to our findings, observed re-radiated emission from dust in dwarf-size galaxies at z~10 would peak at a wavelength of 500μm with observed fluxes of 10^(-3)− 10^(−2) nJy, which is below the capabilities of current observatories. In order to be detectable, model sources at these high redshifts should exhibit luminosities of >10^(12) L_sun, comparable to that of local ultra-luminous systems. The FIR/sub-mm EBL generated by primeval galaxies peaks at 500μm, with an intensity ranging from 10^(−4) to 10^(−3) nW m^(−2) sr^(−1), depending on dust properties. These values are ~ 3 − 4 orders of magnitude below the absolute measured cosmic background level, suggesting that the first galaxies would not contribute significantly to the observed FIR/sub-mm EBL. Our model EBL exhibits a strong correlation with the dust-to-metal ratio, where we assume a fiducial value of D = 0.005, increasing almost proportionally to it. Thus, measurements of the FIR/sub-mm EBL could provide constraints on the amount of dust in the early Universe. Even if the absolute signal from primeval dust emission may be undetectable, it might still be possible to obtain information about it by exploring angular fluctuations at 500μm, close to the peak of dust emission from the first galaxies.Fil: de Rossi, Maria Emilia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Bromm, Volker. University Of Texas At Austin; Estados UnidosOxford University Press2016-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18128de Rossi, Maria Emilia; Bromm, Volker; Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 465; 3; 11-2016; 3668-36790035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw2971info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1610.05407info:eu-repo/semantics/altIdentifier/ark/https://academic.oup.com/mnras/article-abstract/465/3/3668/2544377/Contribution-of-the-first-galaxies-to-the-cosmic?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:23:07Zoai:ri.conicet.gov.ar:11336/18128instacron: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:34982025-10-15 15:23:07.446CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
title Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
spellingShingle Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
de Rossi, Maria Emilia
COSMOLOGY: THEORY
GALAXIES: EVOLUTION
GALAXIES: ABUNDANCES
GALAXIES: HALOES
GALAXIES: HIGH-REDSHIFT
GALAXIES: STAR FORMATION
title_short Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
title_full Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
title_fullStr Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
title_full_unstemmed Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
title_sort Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level
dc.creator.none.fl_str_mv de Rossi, Maria Emilia
Bromm, Volker
author de Rossi, Maria Emilia
author_facet de Rossi, Maria Emilia
Bromm, Volker
author_role author
author2 Bromm, Volker
author2_role author
dc.subject.none.fl_str_mv COSMOLOGY: THEORY
GALAXIES: EVOLUTION
GALAXIES: ABUNDANCES
GALAXIES: HALOES
GALAXIES: HIGH-REDSHIFT
GALAXIES: STAR FORMATION
topic COSMOLOGY: THEORY
GALAXIES: EVOLUTION
GALAXIES: ABUNDANCES
GALAXIES: HALOES
GALAXIES: HIGH-REDSHIFT
GALAXIES: STAR FORMATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the contribution of the first galaxies to the far-infrared/sub-millimeter (FIR/sub-mm) extragalactic background light (EBL) by implementing an analytical model for dust emission. We explore different dust models, assuming different grain size distributions and chemical compositions. According to our findings, observed re-radiated emission from dust in dwarf-size galaxies at z~10 would peak at a wavelength of 500μm with observed fluxes of 10^(-3)− 10^(−2) nJy, which is below the capabilities of current observatories. In order to be detectable, model sources at these high redshifts should exhibit luminosities of >10^(12) L_sun, comparable to that of local ultra-luminous systems. The FIR/sub-mm EBL generated by primeval galaxies peaks at 500μm, with an intensity ranging from 10^(−4) to 10^(−3) nW m^(−2) sr^(−1), depending on dust properties. These values are ~ 3 − 4 orders of magnitude below the absolute measured cosmic background level, suggesting that the first galaxies would not contribute significantly to the observed FIR/sub-mm EBL. Our model EBL exhibits a strong correlation with the dust-to-metal ratio, where we assume a fiducial value of D = 0.005, increasing almost proportionally to it. Thus, measurements of the FIR/sub-mm EBL could provide constraints on the amount of dust in the early Universe. Even if the absolute signal from primeval dust emission may be undetectable, it might still be possible to obtain information about it by exploring angular fluctuations at 500μm, close to the peak of dust emission from the first galaxies.
Fil: de Rossi, Maria Emilia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bromm, Volker. University Of Texas At Austin; Estados Unidos
description We study the contribution of the first galaxies to the far-infrared/sub-millimeter (FIR/sub-mm) extragalactic background light (EBL) by implementing an analytical model for dust emission. We explore different dust models, assuming different grain size distributions and chemical compositions. According to our findings, observed re-radiated emission from dust in dwarf-size galaxies at z~10 would peak at a wavelength of 500μm with observed fluxes of 10^(-3)− 10^(−2) nJy, which is below the capabilities of current observatories. In order to be detectable, model sources at these high redshifts should exhibit luminosities of >10^(12) L_sun, comparable to that of local ultra-luminous systems. The FIR/sub-mm EBL generated by primeval galaxies peaks at 500μm, with an intensity ranging from 10^(−4) to 10^(−3) nW m^(−2) sr^(−1), depending on dust properties. These values are ~ 3 − 4 orders of magnitude below the absolute measured cosmic background level, suggesting that the first galaxies would not contribute significantly to the observed FIR/sub-mm EBL. Our model EBL exhibits a strong correlation with the dust-to-metal ratio, where we assume a fiducial value of D = 0.005, increasing almost proportionally to it. Thus, measurements of the FIR/sub-mm EBL could provide constraints on the amount of dust in the early Universe. Even if the absolute signal from primeval dust emission may be undetectable, it might still be possible to obtain information about it by exploring angular fluctuations at 500μm, close to the peak of dust emission from the first galaxies.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
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/11336/18128
de Rossi, Maria Emilia; Bromm, Volker; Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 465; 3; 11-2016; 3668-3679
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18128
identifier_str_mv de Rossi, Maria Emilia; Bromm, Volker; Contribution of the first galaxies to the cosmic far-infrared/sub-millimeter background - I. Mean background level; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 465; 3; 11-2016; 3668-3679
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw2971
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1610.05407
info:eu-repo/semantics/altIdentifier/ark/https://academic.oup.com/mnras/article-abstract/465/3/3668/2544377/Contribution-of-the-first-galaxies-to-the-cosmic?redirectedFrom=fulltext
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
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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 13.22299

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