Discovery of a New Quadruple Lens HST 1411+5211

Details Discovery of a New Quadruple Lens HST 1411+5211 Discovery of a New Quadruple Lens HST 1411+5211

1998-06-19

arxiv.org/abs/astro-ph/9806273v1

Astronomy and Astrophysics

Astrophysics

11 pages including 1 postscript figure, aastex. Accepted to the ApJL. Also available from: http://www.astro.lsa.umich.edu:80

Scientific paper

10.1086/311555

Gravitational lensing is an important tool for probing the mass distribution of galaxies. In this letter we report the discovery of a new quadruple lens HST 1411+5211 found in archived WFPC2 images of the galaxy cluster CL140933+5226. If the galaxy is a cluster member then its redshift is $z=0.46$. The images of the source appear unresolved in the WFC implying that the source is a quasar. We have modeled the lens as both a single galaxy and a galaxy plus a cluster. The latter model yields excellent fits to the image positions along with reasonable parameters for the galaxy and cluster making HST 1411+5211 a likely gravitational lens. Determination of the source redshift and confirmation of the lens redshift would allow us to put strong constraints on the mass distribution of the lensing galaxy.

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