2006ApJ...641...70O

Query : 2006ApJ...641...70O

2006ApJ...641...70O - Astrophys. J., 641, 70-77 (2006/April-2)

Spectroscopic redshifts for seven lens galaxies.

OFEK E.O., MAOZ D., RIX H.-W., KOCHANEK C.S. and FALCO E.E.

Abstract (from CDS):

The use of gravitationally lensed quasars for cosmological applications and as probes of galaxy structure and evolution requires knowledge about the lens redshift, which is unknown for a large fraction of lenses. We report Very Large Telescope observations of 11 lensed quasars, designed to measure the redshifts of their lens galaxies. We successfully determined the redshifts for seven systems, five of which were previously unknown. The securely measured redshifts for the lensing galaxies are: HE 0047-1756 z=0.408; PMN J0134-0931 z=0.766; HE 0230-2130 z=0.522; HE 0435-1223 z=0.455; SDSS 0924+021 z=0.393; LBQS 1009-025 z=0.871; and WFI J2033-472 z=0.658, all with uncertainties of 0.001. For four additional systems (BR I0952-0115, Q1017-207, Q1355-2257, and PMN J1632-003) we estimate tentative redshifts based on some features in their spectra.

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Journal keyword(s): Cosmology: Gravitational Lensing - Galaxies: Quasars: General - quasars: individual (BR I0952-0115) - quasars: individual (HE 0047-1756) - quasars: individual (HE 0230-2130) - quasars: individual (HE 0435-1223) - quasars: individual (LBQS 1009-025 (read: LBQS 1009-0252)) - Galaxies: Quasars: Individual: Alphanumeric: PMN J0134-0931 - quasars: individual (PMN J1632-003 (read: PMN J1632-0033)) - quasars: individual (Q1017-207 (read: QSO J1017-207)) - quasars: individual (Q1355-2257 (read: QSO J1355-2257)) - quasars: individual (SDSS 0924+021 (read: QSO J0924+0219)) - quasars: individual (WFI J2033-472)

Simbad objects: 27

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Number of rows : 27
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [VV2006] J005027.8-174009 QSO 00 50 27.8233690104 -17 40 09.170215068           ~ 50 1
2 [WSC2004] HE 0047-1756 G G 00 50 27.83 -17 40 11.2           ~ 9 1
3 QSO B0132-097 QSO 01 34 35.6657627616 -09 31 02.903742300   24.52 22.70 20.80   ~ 113 2
4 [WCL99] HE 0230-2130 D LeI 02 32 33.10 -21 17 27.1   22.02       ~ 9 1
5 [WCL99] HE 0230-2130 gLS 02 32 33.10 -21 17 26.0           ~ 9 0
6 [VV2000] J023233.1-211726 QSO 02 32 33.17832 -21 17 25.6308     18.10     ~ 59 1
7 [VV2006] J043814.8-122314 QSO 04 38 14.88 -12 17 14.6     17.15     ~ 245 2
8 [WSB2002] 0435-1223 G G 04 38 14.88 -12 17 14.6     20.80   19.83 ~ 25 0
9 QSO J0924+0219 QSO 09 24 55.8048 +02 19 24.850   18.58 18.36     ~ 142 1
10 [IBB2003] SDSS J0924+0219 G G 09 24 55.8185 +02 19 24.509           ~ 12 1
11 QSO B0952-0115 QSO 09 55 00.1037541106 -01 30 06.549307797     18.7     ~ 150 0
12 [LFK2000] 1009-0252 G G 10 12 -03.1           ~ 11 1
13 LBQS 1009-0252 QSO 10 12 15.89 -03 07 03.1   18.82 18.71     ~ 75 1
14 [LFK2000] J1017-207 G G 10 17 -20.7           ~ 5 1
15 [CSR96] J03.13 A LeQ 10 17 23.9 -20 46 58           ~ 14 0
16 [CSR96] J03.13 B LeQ 10 17 23.9 -20 46 58           ~ 13 0
17 QSO B1015-205 QSO 10 17 23.98 -20 46 58.6   17.08 17.08     ~ 71 2
18 [MGW2003] CTQ 327 G G 13 55 43.40 -22 57 23.0           ~ 5 1
19 QSO B1352-2242 QSO 13 55 43.4224 -22 57 23.388   18.2 18.2     ~ 37 1
20 [VV2006] J163257.6-003302 Bla 16 32 57.68123332 -00 33 21.0701388     20.99 20   ~ 60 2
21 [VV2006] J203342.1-472343 QSO 20 33 42.12 -47 23 43.9           ~ 135 1
22 [MCS2004b] WFI J2033-4723 G G 20 33 42.138 -47 23 43.70           ~ 18 1
24 [WKK2003] Gal-N G ~ ~           ~ 9 1
25 [WKK2003] Gal-S G ~ ~           ~ 9 1
26 [ECM2006] HE 0230-2130 G1 LeI ~ ~           ~ 7 1
27 [WMH2002] G G ~ ~           ~ 5 1

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