Volume 382, Number 3, FebruaryII 2002
|Page(s)||L26 - L28|
|Published online||15 February 2002|
Letter to the Editor
Discovery of a new quadruply lensed QSO: HS 0810+2554 – A brighter twin to PG 1115+080*
Hamburger Sternwarte, Universität Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany
2 Departemento Astronomia, Universidad de Chile, Casilla 36-D, Santiago, Chile
3 Department of Physics and Center for Astrophysics and Space Sciences, University of California, San Diego, C-0424, La Jolla, CA 92093-0424
Corresponding author: D. Reimers, firstname.lastname@example.org
Accepted: 16 December 2001
We announce the probable discovery of a new very bright gravitationally lensed QSO, HS 0810+2554 (, ). The gravitational lens character has been discovered serendipitously by means of short (12 times 1 s) HST/STIS target acquisition images. The coadded images show a close bright double A () and B (16.7) separated by 025 plus two fainter images C (17.4) and D (18.8). There is also evidence for a lens galaxy in the center of the images which is fainter than A by a factor of ≤30 at 7150 Å. The image configuration resembles very much that of PG 1115+080 except that in HS 0810+2554 image splittings (≤ ) are smaller by a factor of ~2.5 and HS 0810+2554 is brighter by ~1m.
Key words: galaxies: quasars: individual HS 0810+2554 / galaxies: quasars: general / cosmology: gravitational lensing
© ESO, 2002
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