Discovery of four gravitational lensing systems by clusters in the SDSS DR6

被引：0
|
作者：
Zhong-Lue Wen1
2 College of Science
机构：
来源：
ResearchinAstronomyandAstrophysics | 2009年 / 9卷 / 01期
基金：
中国国家自然科学基金;
关键词：
galaxies:clusters:general-gravitational lensing;
D O I：
暂无
中图分类号：
P142 [理论天体物理学];
学科分类号：
070401 ;
摘要：
We report the discovery of 4 strong gravitational lensing systems by visual inspections of the Sloan Digital Sky Survey images of galaxy clusters in Data Release 6(SDSS DR6).Two of the four systems show Einstein rings while the others show tangential giant arcs.These arcs or rings have large angular separations(>8") from the bright central galaxies and show bluer color compared with the red cluster galaxies.In addition,we found 5 probable and 4 possible lenses by galaxy clusters.
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页码：5 / 10
页数：6
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