Scaling of the 1-halo terms with bias
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/mnras/stv2193 http://hdl.handle.net/11449/174352 |
Resumo: | In the Halo Model, galaxies are hosted by dark matter haloes, while the haloes themselves are biased tracers of the underlying matter distribution. Measurements of galaxy correlation functions include contributions both from galaxies in different haloes, and from galaxies in the same halo (the so-called one-halo terms). We show that, for highly biased tracers, the one-halo term of the power spectrum obeys a steep scaling relation in terms of bias. We also show that the one-halo term of the trispectrum has a steep scaling with bias. The steepness of these scaling relations is such that the one-halo terms can become key contributions to the n-point correlation functions, even at large scales.We interpret these results through analytical arguments and semi-analytical calculations in terms of the statistical properties of haloes. |
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Scaling of the 1-halo terms with biasCosmology: theoryLarge-scale structure of UniverseIn the Halo Model, galaxies are hosted by dark matter haloes, while the haloes themselves are biased tracers of the underlying matter distribution. Measurements of galaxy correlation functions include contributions both from galaxies in different haloes, and from galaxies in the same halo (the so-called one-halo terms). We show that, for highly biased tracers, the one-halo term of the power spectrum obeys a steep scaling relation in terms of bias. We also show that the one-halo term of the trispectrum has a steep scaling with bias. The steepness of these scaling relations is such that the one-halo terms can become key contributions to the n-point correlation functions, even at large scales.We interpret these results through analytical arguments and semi-analytical calculations in terms of the statistical properties of haloes.Departamento de Física Matemática Instituto de Física Universidade de São Paulo, CP 66318ICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista (UNESP), Rua Dr. Bento Teobaldo Ferraz 271ICTP South American Institute for Fundamental Research Instituto de Física Teórica Universidade Estadual Paulista (UNESP), Rua Dr. Bento Teobaldo Ferraz 271Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Abramo, L. RaulBalmès, IrèneLacasa, Fabien [UNESP]Lima, Marcos2018-12-11T17:10:43Z2018-12-11T17:10:43Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2844-2854application/pdfhttp://dx.doi.org/10.1093/mnras/stv2193Monthly Notices of the Royal Astronomical Society, v. 454, n. 3, p. 2844-2854, 2015.1365-29660035-8711http://hdl.handle.net/11449/17435210.1093/mnras/stv21932-s2.0-850157009162-s2.0-85015700916.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMonthly Notices of the Royal Astronomical Society2,3462,346info:eu-repo/semantics/openAccess2023-09-30T06:02:59Zoai:repositorio.unesp.br:11449/174352Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:33:32.748862Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Scaling of the 1-halo terms with bias |
title |
Scaling of the 1-halo terms with bias |
spellingShingle |
Scaling of the 1-halo terms with bias Abramo, L. Raul Cosmology: theory Large-scale structure of Universe |
title_short |
Scaling of the 1-halo terms with bias |
title_full |
Scaling of the 1-halo terms with bias |
title_fullStr |
Scaling of the 1-halo terms with bias |
title_full_unstemmed |
Scaling of the 1-halo terms with bias |
title_sort |
Scaling of the 1-halo terms with bias |
author |
Abramo, L. Raul |
author_facet |
Abramo, L. Raul Balmès, Irène Lacasa, Fabien [UNESP] Lima, Marcos |
author_role |
author |
author2 |
Balmès, Irène Lacasa, Fabien [UNESP] Lima, Marcos |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Abramo, L. Raul Balmès, Irène Lacasa, Fabien [UNESP] Lima, Marcos |
dc.subject.por.fl_str_mv |
Cosmology: theory Large-scale structure of Universe |
topic |
Cosmology: theory Large-scale structure of Universe |
description |
In the Halo Model, galaxies are hosted by dark matter haloes, while the haloes themselves are biased tracers of the underlying matter distribution. Measurements of galaxy correlation functions include contributions both from galaxies in different haloes, and from galaxies in the same halo (the so-called one-halo terms). We show that, for highly biased tracers, the one-halo term of the power spectrum obeys a steep scaling relation in terms of bias. We also show that the one-halo term of the trispectrum has a steep scaling with bias. The steepness of these scaling relations is such that the one-halo terms can become key contributions to the n-point correlation functions, even at large scales.We interpret these results through analytical arguments and semi-analytical calculations in terms of the statistical properties of haloes. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2018-12-11T17:10:43Z 2018-12-11T17:10:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1093/mnras/stv2193 Monthly Notices of the Royal Astronomical Society, v. 454, n. 3, p. 2844-2854, 2015. 1365-2966 0035-8711 http://hdl.handle.net/11449/174352 10.1093/mnras/stv2193 2-s2.0-85015700916 2-s2.0-85015700916.pdf |
url |
http://dx.doi.org/10.1093/mnras/stv2193 http://hdl.handle.net/11449/174352 |
identifier_str_mv |
Monthly Notices of the Royal Astronomical Society, v. 454, n. 3, p. 2844-2854, 2015. 1365-2966 0035-8711 10.1093/mnras/stv2193 2-s2.0-85015700916 2-s2.0-85015700916.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Monthly Notices of the Royal Astronomical Society 2,346 2,346 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2844-2854 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128246418505728 |