The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM

Autores
Yaryura, Claudia Yamila; Helmi, A.; Abadi, Mario Gabriel; Starkenburg, E.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use the high-resolutionAquarius cosmological darkmatter simulations coupled to the semianalytic model by Starkenburg et al. to study the HI content and velocity width properties of field galaxies at the low-mass end in the context of Λ cold dark matter (ΛCDM). We compare our predictions to the observed Arecibo Legacy Fast ALFA (ALFALFA) survey HI mass and velocity width functions, and find very good agreement without fine-tuning, when considering central galaxies. Furthermore, the properties of the dark matter haloes hosting galaxies, characterized by their peak velocity and circular velocity at two radial disc scalelengths overlap perfectly with the inferred values from observations. This suggests that our galaxies are placed in the right dark matter haloes, and consequently at face value, we do not find any discrepancy with the predictions from the ΛCDM model. Our analysis indicates that previous tensions, apparent when using abundance matching models, arise because this technique cannot be straightforwardly applied for objects with masses Mvir < 1010M⊙.
Fil: Yaryura, Claudia Yamila. 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: Helmi, A.. University of Groningen; Países Bajos
Fil: Abadi, Mario Gabriel. 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: Starkenburg, E.. Leibniz-Institut für Astrophysik Potsdam; Alemania
Materia
GALAXIES: DWARF
GALAXIES: HALOES
GALAXIES: KINEMATICS AND DYNAMICS
GALAXIES: LUMINOSITY FUNCTION, MASS FUNCTION
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:11336/183113
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDMYaryura, Claudia YamilaHelmi, A.Abadi, Mario GabrielStarkenburg, E.GALAXIES: DWARFGALAXIES: HALOESGALAXIES: KINEMATICS AND DYNAMICSGALAXIES: LUMINOSITY FUNCTION, MASS FUNCTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We use the high-resolutionAquarius cosmological darkmatter simulations coupled to the semianalytic model by Starkenburg et al. to study the HI content and velocity width properties of field galaxies at the low-mass end in the context of Λ cold dark matter (ΛCDM). We compare our predictions to the observed Arecibo Legacy Fast ALFA (ALFALFA) survey HI mass and velocity width functions, and find very good agreement without fine-tuning, when considering central galaxies. Furthermore, the properties of the dark matter haloes hosting galaxies, characterized by their peak velocity and circular velocity at two radial disc scalelengths overlap perfectly with the inferred values from observations. This suggests that our galaxies are placed in the right dark matter haloes, and consequently at face value, we do not find any discrepancy with the predictions from the ΛCDM model. Our analysis indicates that previous tensions, apparent when using abundance matching models, arise because this technique cannot be straightforwardly applied for objects with masses Mvir < 1010M⊙.Fil: Yaryura, Claudia Yamila. 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: Helmi, A.. University of Groningen; Países BajosFil: Abadi, Mario Gabriel. 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: Starkenburg, E.. Leibniz-Institut für Astrophysik Potsdam; AlemaniaWiley Blackwell Publishing, Inc2016-04-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/183113Yaryura, Claudia Yamila; Helmi, A.; Abadi, Mario Gabriel; Starkenburg, E.; The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 457; 3; 11-4-2016; 2415-24220035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/457/3/2415/2588922info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw139info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T10:58:56Zoai:ri.conicet.gov.ar:11336/183113instacron: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:34982025-09-17 10:58:56.423CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
title The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
spellingShingle The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
Yaryura, Claudia Yamila
GALAXIES: DWARF
GALAXIES: HALOES
GALAXIES: KINEMATICS AND DYNAMICS
GALAXIES: LUMINOSITY FUNCTION, MASS FUNCTION
title_short The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
title_full The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
title_fullStr The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
title_full_unstemmed The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
title_sort The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM
dc.creator.none.fl_str_mv Yaryura, Claudia Yamila
Helmi, A.
Abadi, Mario Gabriel
Starkenburg, E.
author Yaryura, Claudia Yamila
author_facet Yaryura, Claudia Yamila
Helmi, A.
Abadi, Mario Gabriel
Starkenburg, E.
author_role author
author2 Helmi, A.
Abadi, Mario Gabriel
Starkenburg, E.
author2_role author
author
author
dc.subject.none.fl_str_mv GALAXIES: DWARF
GALAXIES: HALOES
GALAXIES: KINEMATICS AND DYNAMICS
GALAXIES: LUMINOSITY FUNCTION, MASS FUNCTION
topic GALAXIES: DWARF
GALAXIES: HALOES
GALAXIES: KINEMATICS AND DYNAMICS
GALAXIES: LUMINOSITY FUNCTION, MASS FUNCTION
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 use the high-resolutionAquarius cosmological darkmatter simulations coupled to the semianalytic model by Starkenburg et al. to study the HI content and velocity width properties of field galaxies at the low-mass end in the context of Λ cold dark matter (ΛCDM). We compare our predictions to the observed Arecibo Legacy Fast ALFA (ALFALFA) survey HI mass and velocity width functions, and find very good agreement without fine-tuning, when considering central galaxies. Furthermore, the properties of the dark matter haloes hosting galaxies, characterized by their peak velocity and circular velocity at two radial disc scalelengths overlap perfectly with the inferred values from observations. This suggests that our galaxies are placed in the right dark matter haloes, and consequently at face value, we do not find any discrepancy with the predictions from the ΛCDM model. Our analysis indicates that previous tensions, apparent when using abundance matching models, arise because this technique cannot be straightforwardly applied for objects with masses Mvir < 1010M⊙.
Fil: Yaryura, Claudia Yamila. 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: Helmi, A.. University of Groningen; Países Bajos
Fil: Abadi, Mario Gabriel. 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: Starkenburg, E.. Leibniz-Institut für Astrophysik Potsdam; Alemania
description We use the high-resolutionAquarius cosmological darkmatter simulations coupled to the semianalytic model by Starkenburg et al. to study the HI content and velocity width properties of field galaxies at the low-mass end in the context of Λ cold dark matter (ΛCDM). We compare our predictions to the observed Arecibo Legacy Fast ALFA (ALFALFA) survey HI mass and velocity width functions, and find very good agreement without fine-tuning, when considering central galaxies. Furthermore, the properties of the dark matter haloes hosting galaxies, characterized by their peak velocity and circular velocity at two radial disc scalelengths overlap perfectly with the inferred values from observations. This suggests that our galaxies are placed in the right dark matter haloes, and consequently at face value, we do not find any discrepancy with the predictions from the ΛCDM model. Our analysis indicates that previous tensions, apparent when using abundance matching models, arise because this technique cannot be straightforwardly applied for objects with masses Mvir < 1010M⊙.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-11
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/11336/183113
Yaryura, Claudia Yamila; Helmi, A.; Abadi, Mario Gabriel; Starkenburg, E.; The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 457; 3; 11-4-2016; 2415-2422
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/183113
identifier_str_mv Yaryura, Claudia Yamila; Helmi, A.; Abadi, Mario Gabriel; Starkenburg, E.; The low-mass end of the neutral gas mass and velocity width functions of galaxies in ΛCDM; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 457; 3; 11-4-2016; 2415-2422
0035-8711
1365-2966
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://academic.oup.com/mnras/article/457/3/2415/2588922
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stw139
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
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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_ 1843606267537391616
score 13.001348

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