SIMBAD references

2007ApJ...671L...9B - Astrophys. J., 671, L9-L12 (2007/December-2)

The cosmic Horseshoe: discovery of an Einstein ring around a giant luminous red galaxy.

BELOKUROV V., EVANS N.W., MOISEEV A., KING L.J., HEWETT P.C., PETTINI M., WYRZYKOWSKI L., McMAHON R.G., SMITH M.C., GILMORE G., SANCHEZ S.F., UDALSKI A., KOPOSOV S., ZUCKER D.B. and WALCHER C.J.

Abstract (from CDS):

We report the discovery of an almost complete (∼300°) Einstein ring of diameter 10" in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km/s and a redshift of 0.444, while the source is a star-forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Structure - Cosmology: Gravitational Lensing

Simbad objects: 6

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