2008AJ....136...44S -
Astron. J., 136, 44-50 (2008/July-0)
The Sloan Digital Sky Survey discovery of a strongly lensed post-starburst galaxy at z = 0.766.
SHIN M.-S., STRAUSS M.A., OGURI M., INADA N., FALCO E.E., BROADHURST T. and GUNN J.E.
Abstract (from CDS):
We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of ∼1.2x1012 M☉, and the corresponding mass-to-light ratio in the B-band is ∼26M☉/L☉ inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.
Abstract Copyright:
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Journal keyword(s):
galaxies: general - gravitational lensing
Simbad objects:
8
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