A consistent comparison of bias models using observational data

Autores
Papageorgiou, A.; Plionis, M.; Basilakos, S.; Ragone Figueroa, Cinthia Judith
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate five different models for the dark matter (DM) halo bias, that is, the ratio of the fluctuations of mass tracers to those of the underlying mass, by comparing their cosmological evolution using optical quasar (QSO) and galaxy bias data at different redshifts, consistently scaled to the WMAP7 cosmology. Under the assumption that each halo hosts one extragalactic mass tracer, we use a χ2-minimization procedure to determine the free parameters of the bias models as well as to statistically quantify their ability to represent the observational data. Using the Akaike information criterion we find that the model that represents best the observational data is the Basilakos & Plionis model with the tracer merger extension. The only other statistically equivalent model, as indicated by the same criterion, is the Tinker et al. model. Finally, we find an average, over the different models, DM halo mass that hosts optical QSOs of Mh 2.7(±0.6) × 1012 h−1 M, while the corresponding value for optical galaxies is Mh 6.3(±2.1) × 1011 h−1 M.
Fil: Papageorgiou, A.. University of Athens; Grecia
Fil: Plionis, M.. Instituto Nacional de Astrofísica Óptica y Electrónica; México
Fil: Basilakos, S.. Universidad de Barcelona; España
Fil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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
cosmology: theory
dark matter
galaxies: formation
galaxies: haloes
large-scale structure of universe
methods: n-body simulations
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:11336/268775
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/268775
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A consistent comparison of bias models using observational dataPapageorgiou, A.Plionis, M.Basilakos, S.Ragone Figueroa, Cinthia Judithcosmology: theorydark mattergalaxies: formationgalaxies: haloeslarge-scale structure of universemethods: n-body simulationshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate five different models for the dark matter (DM) halo bias, that is, the ratio of the fluctuations of mass tracers to those of the underlying mass, by comparing their cosmological evolution using optical quasar (QSO) and galaxy bias data at different redshifts, consistently scaled to the WMAP7 cosmology. Under the assumption that each halo hosts one extragalactic mass tracer, we use a χ2-minimization procedure to determine the free parameters of the bias models as well as to statistically quantify their ability to represent the observational data. Using the Akaike information criterion we find that the model that represents best the observational data is the Basilakos & Plionis model with the tracer merger extension. The only other statistically equivalent model, as indicated by the same criterion, is the Tinker et al. model. Finally, we find an average, over the different models, DM halo mass that hosts optical QSOs of Mh 2.7(±0.6) × 1012 h−1 M, while the corresponding value for optical galaxies is Mh 6.3(±2.1) × 1011 h−1 M.Fil: Papageorgiou, A.. University of Athens; GreciaFil: Plionis, M.. Instituto Nacional de Astrofísica Óptica y Electrónica; MéxicoFil: Basilakos, S.. Universidad de Barcelona; EspañaFil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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; ArgentinaWiley Blackwell Publishing, Inc2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268775Papageorgiou, A.; Plionis, M.; Basilakos, S.; Ragone Figueroa, Cinthia Judith; A consistent comparison of bias models using observational data; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 106-1160035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2012.20559.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/422/1/106/1019897info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-11T12:00:55Zoai:ri.conicet.gov.ar:11336/268775instacron: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:34982026-02-11 12:00:55.414CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A consistent comparison of bias models using observational data
title A consistent comparison of bias models using observational data
spellingShingle A consistent comparison of bias models using observational data
Papageorgiou, A.
cosmology: theory
dark matter
galaxies: formation
galaxies: haloes
large-scale structure of universe
methods: n-body simulations
title_short A consistent comparison of bias models using observational data
title_full A consistent comparison of bias models using observational data
title_fullStr A consistent comparison of bias models using observational data
title_full_unstemmed A consistent comparison of bias models using observational data
title_sort A consistent comparison of bias models using observational data
dc.creator.none.fl_str_mv Papageorgiou, A.
Plionis, M.
Basilakos, S.
Ragone Figueroa, Cinthia Judith
author Papageorgiou, A.
author_facet Papageorgiou, A.
Plionis, M.
Basilakos, S.
Ragone Figueroa, Cinthia Judith
author_role author
author2 Plionis, M.
Basilakos, S.
Ragone Figueroa, Cinthia Judith
author2_role author
author
author
dc.subject.none.fl_str_mv cosmology: theory
dark matter
galaxies: formation
galaxies: haloes
large-scale structure of universe
methods: n-body simulations
topic cosmology: theory
dark matter
galaxies: formation
galaxies: haloes
large-scale structure of universe
methods: n-body simulations
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 investigate five different models for the dark matter (DM) halo bias, that is, the ratio of the fluctuations of mass tracers to those of the underlying mass, by comparing their cosmological evolution using optical quasar (QSO) and galaxy bias data at different redshifts, consistently scaled to the WMAP7 cosmology. Under the assumption that each halo hosts one extragalactic mass tracer, we use a χ2-minimization procedure to determine the free parameters of the bias models as well as to statistically quantify their ability to represent the observational data. Using the Akaike information criterion we find that the model that represents best the observational data is the Basilakos & Plionis model with the tracer merger extension. The only other statistically equivalent model, as indicated by the same criterion, is the Tinker et al. model. Finally, we find an average, over the different models, DM halo mass that hosts optical QSOs of Mh 2.7(±0.6) × 1012 h−1 M, while the corresponding value for optical galaxies is Mh 6.3(±2.1) × 1011 h−1 M.
Fil: Papageorgiou, A.. University of Athens; Grecia
Fil: Plionis, M.. Instituto Nacional de Astrofísica Óptica y Electrónica; México
Fil: Basilakos, S.. Universidad de Barcelona; España
Fil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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 We investigate five different models for the dark matter (DM) halo bias, that is, the ratio of the fluctuations of mass tracers to those of the underlying mass, by comparing their cosmological evolution using optical quasar (QSO) and galaxy bias data at different redshifts, consistently scaled to the WMAP7 cosmology. Under the assumption that each halo hosts one extragalactic mass tracer, we use a χ2-minimization procedure to determine the free parameters of the bias models as well as to statistically quantify their ability to represent the observational data. Using the Akaike information criterion we find that the model that represents best the observational data is the Basilakos & Plionis model with the tracer merger extension. The only other statistically equivalent model, as indicated by the same criterion, is the Tinker et al. model. Finally, we find an average, over the different models, DM halo mass that hosts optical QSOs of Mh 2.7(±0.6) × 1012 h−1 M, while the corresponding value for optical galaxies is Mh 6.3(±2.1) × 1011 h−1 M.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/268775
Papageorgiou, A.; Plionis, M.; Basilakos, S.; Ragone Figueroa, Cinthia Judith; A consistent comparison of bias models using observational data; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 106-116
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268775
identifier_str_mv Papageorgiou, A.; Plionis, M.; Basilakos, S.; Ragone Figueroa, Cinthia Judith; A consistent comparison of bias models using observational data; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 422; 1; 5-2012; 106-116
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/10.1111/j.1365-2966.2012.20559.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/422/1/106/1019897
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 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
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score 12.930639

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