The extinction curve of the lensing galaxy of B1152+199 at z=0.44

Details The extinction curve of the lensing galaxy of B1152+199 at z=0.44 The extinction curve of the lensing galaxy of B1152+199 at z=0.44

2000-03-07

arxiv.org/abs/astro-ph/0003098v1

Astron.Astrophys.357:115-119,2000

Astronomy and Astrophysics

Astrophysics

6 pages, 7 figures, accepted for publication in Astronomy and Astrophysics

Scientific paper

We present UBVRIz' photometry of the gravitational lens candidate CLASS B1152+119 obtained with the Nordic Optical Telescope. The two QSO components are resolved in the B, V, R, I and z' bands confirming the lensing nature of the system. The z=0.44 lens galaxy is clearly detected in B, R, I and z' and its position is found to be almost coincident with the faint QSO image which is heavily extincted (relative to the brighter QSO image) by dust in the lens galaxy. The extinction curve of the lens galaxy derived from the relative photometry is well fitted by a Galactic extinction law with 1.3 < R_V < 2.0 and E(B-V) ~ 1. From a simple model of the system we predict a time delay of ~ 60 days.

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