The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3

We have measured redshifts for 243 z≈ 3 quasars in nine Very Large Telescope (VLT) Visible Imaging and Multi-Object Spectrograph (VIMOS) Lyman-break galaxy (LBG) redshift survey areas, each of which is centred on a known bright quasar. Using the spectra of these quasars, we measure the cross-correla...

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Autores: Crighton, N., Infante, L., Minniti, D, Padilla, N.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/237498
Acceso en línea:https://hdl.handle.net/10533/237498
Access Level:acceso abierto
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spelling Minniti, D, Padilla, N.Infante, L.Crighton, N.201110.1111/j.1365-2966.2011.17247.xhttps://hdl.handle.net/10533/237498http://purl.org/coar/access_right/c_abf2The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3Crighton, N.Infante, L.Minniti, D, Padilla, N.2019-12-18T18:15:39Z2022-07-07T23:41:00Z2019-12-18T18:15:39Z2022-07-07T23:41:00Z2011We have measured redshifts for 243 z≈ 3 quasars in nine Very Large Telescope (VLT) Visible Imaging and Multi-Object Spectrograph (VIMOS) Lyman-break galaxy (LBG) redshift survey areas, each of which is centred on a known bright quasar. Using the spectra of these quasars, we measure the cross-correlation between neutral hydrogen gas causing the Lyα forest and 1020 LBGs at z≈ 3. We find an increase in neutral hydrogen absorption within ≈5h-1Mpc of a galaxy in agreement with the results of Adelberger et al. The Lyα-LBG cross-correlation can be described by a power law on scales larger than 3h-1Mpc. When galaxy velocity dispersions are taken into account, our results at smaller scales (<2h-1Mpc) are also in good agreement with the results of Adelberger et al. There is little immediate indication of a region with a transmission spike above the mean intergalactic medium value which might indicate the presence of star formation feedback. To measure the galaxy velocity dispersions, which include both intrinsic LBG velocity dispersion and redshift errors, we have used the LBG-LBG redshift-space distortion measurements of Bielby et al. We find that the redshift-space transmission spike implied in the results of Adelberger et al. is too narrow to be physical in the presence of the likely LBG velocity dispersion and is likely to be a statistical fluke. Nevertheless, neither our nor previous data can rule out the presence of a narrow, real-space transmission spike, given the evidence of the increased Lyα absorption surrounding LBGs which can mask the spike's presence when convolved with a realistic LBG velocity dispersion. Finally, we identify 176 Civ systems in the quasar spectra and find an LBG-Civ correlation strength on scales of 10h-1Mpc consistent with the relation measured at ≈Mpc scales.FONDAPFONDAP1501000315010003virtual::33225-1WOS:000292141600024https://hdl.handle.net/10533/237498enginstname: Conicytreponame: Repositorio Digital RI2.010.1111/j.1365-2966.2011.17247.xinfo:eu-repo/grantAgreement/Fondap/15010003https://researchers.unab.cl/en/publications/the-vlt-lbg-redshift-survey-ii-interactions-between-galaxies-and-Atribución-NoComercial-SinDerivadas 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/info:eu-repo/semantics/openAccessThe VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3Monthly Notices Of The Royal Astronomical SocietyArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/237498http://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::33225-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::33225-110533/237498oai:repositorio.anid.cl:10533/2374982023-07-24 17:04:02.746https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
dc.title.journal.none.fl_str_mv Monthly Notices Of The Royal Astronomical Society
title The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
spellingShingle The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
Crighton, N.
title_short The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
title_full The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
title_fullStr The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
title_full_unstemmed The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
title_sort The VLT LBG Redshift Survey- II. Interactions between galaxies and the IGM at z˜ 3
dc.creator.none.fl_str_mv Crighton, N.
Infante, L.
Minniti, D, Padilla, N.
author Crighton, N.
author_facet Crighton, N.
Infante, L.
Minniti, D, Padilla, N.
author_role author
author2 Infante, L.
Minniti, D, Padilla, N.
author2_role author
author
description We have measured redshifts for 243 z≈ 3 quasars in nine Very Large Telescope (VLT) Visible Imaging and Multi-Object Spectrograph (VIMOS) Lyman-break galaxy (LBG) redshift survey areas, each of which is centred on a known bright quasar. Using the spectra of these quasars, we measure the cross-correlation between neutral hydrogen gas causing the Lyα forest and 1020 LBGs at z≈ 3. We find an increase in neutral hydrogen absorption within ≈5h-1Mpc of a galaxy in agreement with the results of Adelberger et al. The Lyα-LBG cross-correlation can be described by a power law on scales larger than 3h-1Mpc. When galaxy velocity dispersions are taken into account, our results at smaller scales (<2h-1Mpc) are also in good agreement with the results of Adelberger et al. There is little immediate indication of a region with a transmission spike above the mean intergalactic medium value which might indicate the presence of star formation feedback. To measure the galaxy velocity dispersions, which include both intrinsic LBG velocity dispersion and redshift errors, we have used the LBG-LBG redshift-space distortion measurements of Bielby et al. We find that the redshift-space transmission spike implied in the results of Adelberger et al. is too narrow to be physical in the presence of the likely LBG velocity dispersion and is likely to be a statistical fluke. Nevertheless, neither our nor previous data can rule out the presence of a narrow, real-space transmission spike, given the evidence of the increased Lyα absorption surrounding LBGs which can mask the spike's presence when convolved with a realistic LBG velocity dispersion. Finally, we identify 176 Civ systems in the quasar spectra and find an LBG-Civ correlation strength on scales of 10h-1Mpc consistent with the relation measured at ≈Mpc scales.
publishDate 2011
dc.date.issued.none.fl_str_mv 2011
dc.date.accessioned.none.fl_str_mv 2019-12-18T18:15:39Z
2022-07-07T23:41:00Z
dc.date.available.none.fl_str_mv 2019-12-18T18:15:39Z
2022-07-07T23:41:00Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.folio.none.fl_str_mv 15010003
15010003
dc.identifier.idwos.none.fl_str_mv WOS:000292141600024
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/237498
identifier_str_mv 15010003
WOS:000292141600024
url https://hdl.handle.net/10533/237498
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1111/j.1365-2966.2011.17247.x
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondap/15010003
dc.relation.uri.none.fl_str_mv https://researchers.unab.cl/en/publications/the-vlt-lbg-redshift-survey-ii-interactions-between-galaxies-and-
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
eu_rights_str_mv openAccess
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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