A search for clusters and groups of galaxies on the line of sight towards 8 lensed quasars

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dc.contributor.authorFaure, C
dc.contributor.authorAlloin, D
dc.contributor.authorKneib, JP
dc.contributor.authorCourbin, F
dc.date.accessioned2025-01-21T01:07:26Z
dc.date.available2025-01-21T01:07:26Z
dc.date.issued2004
dc.description.abstractIn this paper we present new ESO/VLT FORS1 and ISAAC images of the fields around eight gravitationally lensed quasars: CTQ 414, HE 0230-2130, LBQS 1009-0252, B 1030+074, HE 1104-1805, B 1359+154, H 1413+117 and HE 2149-2745. When available and deep enough, HST/WFPC2 data were also used to infer the photometric redshifts of the galaxies around the quasars. The search of galaxy overdensities in space and redshift, as well as a weak-shear analysis and a mass reconstruction are presented in this paper. We find that there are most probably galaxy groups towards CTQ 414, HE 0230-2130, B 1359+154, H 1413+117 and HE 2149-2745, with masses <4x10(14) M-circle dot h(-1). Considering its photometric redshift, the galaxy group discovered in the field around HE 1104-1805 is associated with the quasar rather than with the lensing potential.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361:20040406
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361:20040406
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96329
dc.identifier.wosidWOS:000225599800006
dc.issue.numero3
dc.language.isoen
dc.pagina.final755
dc.pagina.inicio741
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectgalaxies : clusters : general
dc.subjectgravitational lensing
dc.titleA search for clusters and groups of galaxies on the line of sight towards 8 lensed quasars
dc.typeartículo
dc.volumen428
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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