2002A&A...382L..26R


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.20CEST21:07:39

2002A&A...382L..26R - Astronomy and Astrophysics, volume 382, L26-28 (2002/2-2)

Discovery of a new quadruply lensed QSO: HS 0810+2554 - A brighter twin to PG 1115+080.

REIMERS D., HAGEN H.-J., BAADE R., LOPEZ S. and TYTLER D.

Abstract (from CDS):

We announce the probable discovery of a new very bright gravitationally lensed QSO, HS 0810+2554 (z=1.50, V=15.3). 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 (V=16.0) and B (16.7) separated by 0."25 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 (≤1'') are smaller by a factor of ∼2.5 and HS 0810+2554 is brighter by ∼1m.

Abstract Copyright:

Journal keyword(s): galaxies: quasars: individual: HS 0810+2554 - galaxies: quasars: general - cosmology: gravitational lensing

Nomenclature: Text: [RHB2002] HS 0810+2554, [RHB2002] HS 0810+2554 A (Nos A-D, G).

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 [RHB2002] HS 0810+2554 gLS 08 13 31.29 +25 45 03.0           ~ 7 0
2 QSO B0810+2554 QSO 08 13 31.2926 +25 45 03.061   16.58 16.18     ~ 86 1
3 [RHB2002] HS 0810+2554 A LeQ 08 13 31.30 +25 45 03.2           ~ 7 0
4 [RHB2002] HS 0810+2554 B LeQ 08 13 31.31 +25 45 02.9           ~ 7 0
5 [RHB2002] HS 0810+2554 G G 08 13 31.33 +25 45 03.3           ~ 1 0
6 [RHB2002] HS 0810+2554 D LeQ 08 13 31.34 +25 45 03.6           ~ 7 0
7 [RHB2002] HS 0810+2554 C LeQ 08 13 31.35 +25 45 02.8           ~ 7 0
8 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 640 2

    Equat.    Gal    SGal    Ecl

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2021.06.20-21:07:39

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