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Studying structure formation and evolution with strong-lensing galaxy groups

Published online by Cambridge University Press:  12 October 2016

Gaël Foëx ,
Veronica Motta ,
Marceau Limousin ,
Tomas Verdugo  and
Fabio Gastaldello
Gaël Foëx
Affiliation:
Instituto de Física y Astronomía, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Valparaíso, Chile email: gael.foex@uv.cl
Veronica Motta
Affiliation:
Instituto de Física y Astronomía, Universidad de Valparaíso, Avda. Gran Bretaña 1111, Valparaíso, Chile email: gael.foex@uv.cl
Marceau Limousin
Affiliation:
Aix Marseille Université, CNRS, Laboratoire d'Astrophysique de Marseille UMR 7326, 13388, Marseille, France
Tomas Verdugo
Affiliation:
Centro de Investigaciones de Astronomía, AP 264, Mérida 5101-A, Venezuela
Fabio Gastaldello
Affiliation:
INAF - IASF Milano, via E. Bassini 15, I-20133 Milano, Italy
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Abstract

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We present the analysis of a sample of strong-lensing galaxy group candidates. Our main findings are: confirmation of group-scale systems, complex light distributions, presence of large-scale structures in their surroundings, and evidence of a strong-lensing bias in the mass-concentration relation. We also report the detection of the first 'Bullet group'.

Keywords

Dark mattergravitational lensinggalaxy groups
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 211 - 212
Copyright
Copyright © International Astronomical Union 2016 

References

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