期刊
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷 11, 期 10, 页码 1185-1198出版社
NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
DOI: 10.1088/1674-4527/11/10/007
关键词
galaxies: clusters: general; gravitational lensing
资金
- National Natural Science Foundation of China [10821061, 10833003, 11103032]
- National Astronomical Observatories, Chinese Academy of Sciences
- National Key Basic Research Science Foundation of China [2007CB815403]
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy
We identify new strong lensing clusters of galaxies from the Sloan Digital Sky Survey III (SDSS DR8) by visually inspecting color images of a large sample of clusters of galaxies. We find 68 new clusters showing giant arcs in addition to 30 known lensing systems. Among 68 cases, 13 clusters are almost certain lensing systems with tangential giant arcs, 22 clusters are probable and 31 clusters are possible lensing systems. We also find two exotic systems with blue rings. The giant arcs have angular separations of 2.0 '' 25.7 '' from the bright central galaxies. We note that the rich clusters are more likely to be lensing systems and the separations between the arcs and the central galaxies increase with cluster richness.
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