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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/18128
Ver los metadatos del registro completo
id |
CONICETDig_f7dcdaaa4075ef8c35c5a95d957e0cf4 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/18128 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 |
_version_ |
1846083378034507776 |
score |
13.22299 |