Discovery of four gravitational lensing systems by clusters in the SDSS DR6
Abstract
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.
- Publication:
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Research in Astronomy and Astrophysics
- Pub Date:
- January 2009
- DOI:
- 10.1088/1674-4527/9/1/002
- arXiv:
- arXiv:0812.1860
- Bibcode:
- 2009RAA.....9....5W
- Keywords:
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- Astrophysics
- E-Print:
- 6 pages, 3 figures. Added reference