Are Ly α emitters segregated in protoclusters regions?

Autores
Hough, Tomas; Gurung López, Siddhartha; Orsi, Álvaro; Cora, Sofia Alejandra; Lacey, Cedric G; Baugh, Carlton M
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The presence of neutral hydrogen in the interstellar medium (ISM) and intergalactic medium (IGM) induces radiative transfer (RT) effects on LyαLyα photons that affect the observability of Lyman alpha emitters (LAEs). We use the GALFORM semi-analytic model of galaxy formation and evolution to analyse how these effects shape the spatial distribution of LAEs with respect to HαHα emitters (HAEs) around high-density regions at high redshift. We find that when a large sample of protoclusters is considered, HAEs showing also LyαLyα emission (HAEs + LAEs) populate the same regions as those that do not display the LyαLyα line at zz = 2.2. We compare against the protocluster USS1558-003, one of the most massive protoclusters located at zz = 2.53. Our results indicate that the strong depletion of HAEs + LAEs present in the high-density regions of USS1558-003 may be due to cosmic variance. We find that at zz = 2.2 and zz = 3.0, RT of the ISM produces a strong decline (30-50 per cent) of the clustering amplitude of HAEs + LAEs with respect to HAEs towards the protoclusters centre. At zz = 5.7, given the early evolutionary state of protoclusters and galaxies, the clustering of HAEs + LAEs has a smaller variation (10-20 per cent) towards the protoclusters centre. Depending on the equivalent width and luminosity criteria of the emission-line galaxy sample, the IGM can have a mild or a null effect on galaxy properties and clustering in high-density regions.
Fil: Hough, Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gurung López, Siddhartha. Department Of Physics, Missouri University Of Science; Estados Unidos
Fil: Orsi, Álvaro. Centro de Estudios de Física del Cosmos de Aragón; España
Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Lacey, Cedric G. Institute For Computational Cosmology; Reino Unido
Fil: Baugh, Carlton M. Institute For Computational Cosmology; Reino Unido
Materia
Radiative transfer
methods: numerical
Galaxies: clusters: general
Galaxies: high-redshift
Galaxies: clusters: intracluster medium
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:11336/142044
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/142044
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Are Ly α emitters segregated in protoclusters regions?Hough, TomasGurung López, SiddharthaOrsi, ÁlvaroCora, Sofia AlejandraLacey, Cedric GBaugh, Carlton MRadiative transfermethods: numericalGalaxies: clusters: generalGalaxies: high-redshiftGalaxies: clusters: intracluster mediumhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The presence of neutral hydrogen in the interstellar medium (ISM) and intergalactic medium (IGM) induces radiative transfer (RT) effects on LyαLyα photons that affect the observability of Lyman alpha emitters (LAEs). We use the GALFORM semi-analytic model of galaxy formation and evolution to analyse how these effects shape the spatial distribution of LAEs with respect to HαHα emitters (HAEs) around high-density regions at high redshift. We find that when a large sample of protoclusters is considered, HAEs showing also LyαLyα emission (HAEs + LAEs) populate the same regions as those that do not display the LyαLyα line at zz = 2.2. We compare against the protocluster USS1558-003, one of the most massive protoclusters located at zz = 2.53. Our results indicate that the strong depletion of HAEs + LAEs present in the high-density regions of USS1558-003 may be due to cosmic variance. We find that at zz = 2.2 and zz = 3.0, RT of the ISM produces a strong decline (30-50 per cent) of the clustering amplitude of HAEs + LAEs with respect to HAEs towards the protoclusters centre. At zz = 5.7, given the early evolutionary state of protoclusters and galaxies, the clustering of HAEs + LAEs has a smaller variation (10-20 per cent) towards the protoclusters centre. Depending on the equivalent width and luminosity criteria of the emission-line galaxy sample, the IGM can have a mild or a null effect on galaxy properties and clustering in high-density regions.Fil: Hough, Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Gurung López, Siddhartha. Department Of Physics, Missouri University Of Science; Estados UnidosFil: Orsi, Álvaro. Centro de Estudios de Física del Cosmos de Aragón; EspañaFil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Lacey, Cedric G. Institute For Computational Cosmology; Reino UnidoFil: Baugh, Carlton M. Institute For Computational Cosmology; Reino UnidoWiley Blackwell Publishing, Inc2020-12info: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/11336/142044Hough, Tomas; Gurung López, Siddhartha; Orsi, Álvaro; Cora, Sofia Alejandra; Lacey, Cedric G; et al.; Are Ly α emitters segregated in protoclusters regions?; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 499; 2; 12-2020; 2104-21150035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/499/2/2104/5917099info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:17Zoai:ri.conicet.gov.ar:11336/142044instacron: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:34982025-09-29 10:11:17.847CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Are Ly α emitters segregated in protoclusters regions?
title Are Ly α emitters segregated in protoclusters regions?
spellingShingle Are Ly α emitters segregated in protoclusters regions?
Hough, Tomas
Radiative transfer
methods: numerical
Galaxies: clusters: general
Galaxies: high-redshift
Galaxies: clusters: intracluster medium
title_short Are Ly α emitters segregated in protoclusters regions?
title_full Are Ly α emitters segregated in protoclusters regions?
title_fullStr Are Ly α emitters segregated in protoclusters regions?
title_full_unstemmed Are Ly α emitters segregated in protoclusters regions?
title_sort Are Ly α emitters segregated in protoclusters regions?
dc.creator.none.fl_str_mv Hough, Tomas
Gurung López, Siddhartha
Orsi, Álvaro
Cora, Sofia Alejandra
Lacey, Cedric G
Baugh, Carlton M
author Hough, Tomas
author_facet Hough, Tomas
Gurung López, Siddhartha
Orsi, Álvaro
Cora, Sofia Alejandra
Lacey, Cedric G
Baugh, Carlton M
author_role author
author2 Gurung López, Siddhartha
Orsi, Álvaro
Cora, Sofia Alejandra
Lacey, Cedric G
Baugh, Carlton M
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Radiative transfer
methods: numerical
Galaxies: clusters: general
Galaxies: high-redshift
Galaxies: clusters: intracluster medium
topic Radiative transfer
methods: numerical
Galaxies: clusters: general
Galaxies: high-redshift
Galaxies: clusters: intracluster medium
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The presence of neutral hydrogen in the interstellar medium (ISM) and intergalactic medium (IGM) induces radiative transfer (RT) effects on LyαLyα photons that affect the observability of Lyman alpha emitters (LAEs). We use the GALFORM semi-analytic model of galaxy formation and evolution to analyse how these effects shape the spatial distribution of LAEs with respect to HαHα emitters (HAEs) around high-density regions at high redshift. We find that when a large sample of protoclusters is considered, HAEs showing also LyαLyα emission (HAEs + LAEs) populate the same regions as those that do not display the LyαLyα line at zz = 2.2. We compare against the protocluster USS1558-003, one of the most massive protoclusters located at zz = 2.53. Our results indicate that the strong depletion of HAEs + LAEs present in the high-density regions of USS1558-003 may be due to cosmic variance. We find that at zz = 2.2 and zz = 3.0, RT of the ISM produces a strong decline (30-50 per cent) of the clustering amplitude of HAEs + LAEs with respect to HAEs towards the protoclusters centre. At zz = 5.7, given the early evolutionary state of protoclusters and galaxies, the clustering of HAEs + LAEs has a smaller variation (10-20 per cent) towards the protoclusters centre. Depending on the equivalent width and luminosity criteria of the emission-line galaxy sample, the IGM can have a mild or a null effect on galaxy properties and clustering in high-density regions.
Fil: Hough, Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gurung López, Siddhartha. Department Of Physics, Missouri University Of Science; Estados Unidos
Fil: Orsi, Álvaro. Centro de Estudios de Física del Cosmos de Aragón; España
Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Lacey, Cedric G. Institute For Computational Cosmology; Reino Unido
Fil: Baugh, Carlton M. Institute For Computational Cosmology; Reino Unido
description The presence of neutral hydrogen in the interstellar medium (ISM) and intergalactic medium (IGM) induces radiative transfer (RT) effects on LyαLyα photons that affect the observability of Lyman alpha emitters (LAEs). We use the GALFORM semi-analytic model of galaxy formation and evolution to analyse how these effects shape the spatial distribution of LAEs with respect to HαHα emitters (HAEs) around high-density regions at high redshift. We find that when a large sample of protoclusters is considered, HAEs showing also LyαLyα emission (HAEs + LAEs) populate the same regions as those that do not display the LyαLyα line at zz = 2.2. We compare against the protocluster USS1558-003, one of the most massive protoclusters located at zz = 2.53. Our results indicate that the strong depletion of HAEs + LAEs present in the high-density regions of USS1558-003 may be due to cosmic variance. We find that at zz = 2.2 and zz = 3.0, RT of the ISM produces a strong decline (30-50 per cent) of the clustering amplitude of HAEs + LAEs with respect to HAEs towards the protoclusters centre. At zz = 5.7, given the early evolutionary state of protoclusters and galaxies, the clustering of HAEs + LAEs has a smaller variation (10-20 per cent) towards the protoclusters centre. Depending on the equivalent width and luminosity criteria of the emission-line galaxy sample, the IGM can have a mild or a null effect on galaxy properties and clustering in high-density regions.
publishDate 2020
dc.date.none.fl_str_mv 2020-12
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/11336/142044
Hough, Tomas; Gurung López, Siddhartha; Orsi, Álvaro; Cora, Sofia Alejandra; Lacey, Cedric G; et al.; Are Ly α emitters segregated in protoclusters regions?; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 499; 2; 12-2020; 2104-2115
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/142044
identifier_str_mv Hough, Tomas; Gurung López, Siddhartha; Orsi, Álvaro; Cora, Sofia Alejandra; Lacey, Cedric G; et al.; Are Ly α emitters segregated in protoclusters regions?; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 499; 2; 12-2020; 2104-2115
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/url/https://academic.oup.com/mnras/article/499/2/2104/5917099
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
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