Discovery of Strong Lensing Clusters in the Sdss Dr6
نویسندگان
چکیده
We discovered strong gravitational lensing in 4 galaxy clusters by visual inspection of the Sloan Digital Sky Survey images in Data Release 6 (SDSS DR6). Two of them show the Einstein rings, and the other two show tangential giant arcs. These arcs or rings have large angle separations of > 8 from the bright central galaxies. The lensed images in general are bluer than cluster member galaxies. The lensing clusters have high redshifts around 0.4. In addition, we also found 4 probable and 4 possible lensing clusters. Subject headings: galaxies: clusters: general — gravitational lensing
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Discovery of Four New Lensing Systems by Clusters in the Sdss Dr6
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