Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations

Detalhes bibliográficos
Autor(a) principal: Guimarães,Antonio C. C.
Data de Publicação: 2005
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000700046
Resumo: We review observations and gravitational lensing theory related to the magnification of background QSOs by intervening overdensities, and the induced cross-correlation between sources and foreground galaxies. We pay special attention to simulations, and present some preliminary results from high resolution cluster simulations, which show the role of the halo core and substructure on non-linear magnification. For massive clusters, deviations from the weak gravitational lensing regime are significant on arcmin scales and bellow. The accumulated knowledge in the field already shows that gravitational lensing magnification is an important astrophysical and cosmological tool.
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spelling Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulationsWe review observations and gravitational lensing theory related to the magnification of background QSOs by intervening overdensities, and the induced cross-correlation between sources and foreground galaxies. We pay special attention to simulations, and present some preliminary results from high resolution cluster simulations, which show the role of the halo core and substructure on non-linear magnification. For massive clusters, deviations from the weak gravitational lensing regime are significant on arcmin scales and bellow. The accumulated knowledge in the field already shows that gravitational lensing magnification is an important astrophysical and cosmological tool.Sociedade Brasileira de Física2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000700046Brazilian Journal of Physics v.35 n.4b 2005reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332005000700046info:eu-repo/semantics/openAccessGuimarães,Antonio C. C.eng2006-02-06T00:00:00Zoai:scielo:S0103-97332005000700046Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-02-06T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
title Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
spellingShingle Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
Guimarães,Antonio C. C.
title_short Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
title_full Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
title_fullStr Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
title_full_unstemmed Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
title_sort Lensing magnification and QSO-galaxy cross-correlations: observations, theory and simulations
author Guimarães,Antonio C. C.
author_facet Guimarães,Antonio C. C.
author_role author
dc.contributor.author.fl_str_mv Guimarães,Antonio C. C.
description We review observations and gravitational lensing theory related to the magnification of background QSOs by intervening overdensities, and the induced cross-correlation between sources and foreground galaxies. We pay special attention to simulations, and present some preliminary results from high resolution cluster simulations, which show the role of the halo core and substructure on non-linear magnification. For massive clusters, deviations from the weak gravitational lensing regime are significant on arcmin scales and bellow. The accumulated knowledge in the field already shows that gravitational lensing magnification is an important astrophysical and cosmological tool.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000700046
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000700046
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332005000700046
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.35 n.4b 2005
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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