2012A&A...540A..36C

Query : 2012A&A...540A..36C

2012A&A...540A..36C - Astronomy and Astrophysics, volume 540A, 36-36 (2012/4-1)

Three quasi-stellar objects acting as strong gravitational lenses.

COURBIN F., FAURE C., DJORGOVSKI S.G., RERAT F., TEWES M., MEYLAN G., STERN D., MAHABAL A., BOROSON T., DHEERAJ R. and SLUSE D.

Abstract (from CDS):

We report the discovery of three new cases of quasi-stellar objects (QSOs) acting as strong gravitational lenses on background emission line galaxies: SDSS J0827+5224 (z_QSO=0.293, z_s=0.412), SDSS J0919+2720 (z_QSO=0.209, z_s=0.558), SDSS J1005+4016 (z_QSO=0.230, z_s=0.441). The selection was carried out using a sample of 22,298 SDSS spectra displaying at least four emission lines at a redshift beyond that of the foreground QSO. The lensing nature is confirmed from Keck imaging and spectroscopy, as well as from HST/WFC3 imaging in the F475W and F814W filters. Two of the QSOs have face-on spiral host galaxies and the third is a QSO+galaxy pair. The velocity dispersion of the host galaxies, inferred from simple lens modeling, is between σ=210 and 285km/s, making these host galaxies comparable in mass with the SLACS sample of early-type strong lenses.

Abstract Copyright: ∼

Journal keyword(s): gravitational lensing: strong - quasars: individual: SDSS J0013+1523 - quasars: individual: SDSS J0827+5224 - quasars: individual: SDSS J0919+2720 - quasars: individual: SDSS J1005+4016

Simbad objects: 5

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Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Sp type	#ref 1850 - 2023
1	2MASS J00134022+1523120	Sy1	00 13 40.2102030456	+15 23 12.059050668	19.42	18.88	~	13
2	NGC 136	OpC	00 31 35.0	+61 30 22			~	37
3	QSO J0827+5224	AGN	08 27 00.0	+52 24 00			~	1
4	QSO J0919+2720	AGN	09 19 00.0	+27 20 00			~	1
5	QSO J1005+4016	AGN	10 05 00.0	+40 16 00			~	2

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