Studying structure formation and evolution with strong-lensing galaxy groups

被引:0
|
作者
Foex, Gael [1 ]
Motta, Veronica [1 ]
Limousin, Marceau [2 ]
Verdugo, Tomas [3 ]
Gastaldello, Fabio [4 ]
机构
[1] Univ Valparaiso, Inst Fis & Astron, Avda Gran Bretana 1111, Valparaiso, Chile
[2] Aix Marseille Univ, Lab Astrophys Marseille, CNRS, UMR 7326, F-13388 Marseille, France
[3] Ctr Invest Astron, AP 264, Merida 5101 A, Venezuela
[4] INAF IASF Milano, Via E Bassini 15, I-20133 Milan, Italy
关键词
Dark matter; gravitational lensing; galaxy groups;
D O I
10.1017/S1743921316009881
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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'.
引用
收藏
页码:211 / 212
页数:2
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