1998ApJ...509..561K


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.23CEST13:27:57

1998ApJ...509..561K - Astrophys. J., 509, 561-578 (1998/December-3)

The optical properties of gravitational lens galaxies as a probe of galaxy structure and evolution

KEETON C.R., KOCHANEK C.S. and FALCO E.E.

Abstract (from CDS):

We combine photometry and lens modeling to study the properties of 17 gravitational lens galaxies between z = 0.1 and ∼1. Most of the lens galaxies are passively evolving early-type galaxies, with a few spirals. The colors, scale lengths, and ellipticities of lens galaxies are similar to those of the general population of early-type galaxies, although there may be a deficit of apparently round lens galaxies produced by the inclination dependence of lensing cross sections. The projected mass distributions are aligned with the projected light distributions to ≲10°, except in the presence of a strong external tidal perturbation, suggesting that dark matter halos are significantly modified by interactions with the baryonic component and are not far out of alignment with the stars. Lens galaxies obey image separation/lens luminosity correlations analogous to the Faber-Jackson and Tully-Fisher relations, which are consistent with standard dark matter lens models. The lens galaxy mass-to-light ratios decrease with redshift as d(log M/LB)/dz = -0.3±0.1 (-0.5±0.1) for Ω0 = 1 (0.1), thus providing direct evidence of passive evolution for a sample of early-type galaxies in low-density environments. The evolution-corrected mass-to-light ratios are generally larger than predicted by constant M/L dynamical models, although there is significant scatter; with improved photometry, lens galaxy mass-to-light ratios would better distinguish between constant M/L and dark matter models. These conclusions are limited primarily by the quality of lens galaxy photometry.

Abstract Copyright:

Journal keyword(s): Galaxies: Evolution - Galaxies: Photometry - Galaxies: Structure - Cosmology: Gravitational Lensing

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 - 2021
#notes
1 QSO B0142-100 QSO 01 45 16.5955770048 -09 45 17.269954127   17.23 16.95     ~ 230 1
2 QSO B0218+357 QSO 02 21 05.5 +35 56 14   20.0 20.0 19.60   ~ 515 2
3 4C 05.19 QSO 04 14 37.7673624 +05 34 42.328449   24.100 23.800 21.270   ~ 338 2
4 QSO B0712+472 QSO 07 16 03.65 +47 08 50.6     23.0     ~ 106 1
5 QSO J0751+2716 QSO 07 51 41.517 +27 16 31.79     18.7     ~ 74 2
6 QSO B0952-0115 QSO 09 55 00.1037541106 -01 30 06.549307797     18.7     ~ 131 0
7 8C 0958+561 QSO 10 01 20.6915852239 +55 53 55.595776916   17.16 16.95     ~ 706 3
8 QSO B1015-205 QSO 10 17 23.98 -20 46 58.6   17.08 17.08     ~ 60 2
9 [VV96] J102434.5+470911 Sy1 10 24 34.5 +47 09 11     20.5     ~ 475 0
10 QSO B1104-181 QSO 11 06 33.39 -18 21 23.8   15.8 15.9 15.7   ~ 308 1
11 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 640 2
12 4C 05.51 G 11 31 56.5 +04 55 49           ~ 118 1
13 QSO B1208+101 QSO 12 10 57.0378198925 +09 54 27.078644555     17.5     ~ 111 1
14 [RGO99] HST J12531-2914 G 12 53 06.70 -29 14 30.0           ~ 25 0
15 QSO J1415+1129 QSO 14 15 46.25 +11 29 43.4   17.63 17.23     ~ 608 0
16 EGSIRAC J141735.72+522646.0 G 14 17 35.72443 +52 26 46.0560   24.04 21.53 21.38 19.971 ~ 59 1
17 [MMN2007] A1 gLS 14 17 35.9 +52 26 46     21.53   19.69 ~ 79 0
18 QSO B1422+2309 BLL 14 24 38.09400 +22 56 00.5900   16.77 15.84 14.79   ~ 425 1
19 [PBW92] 1422+231 gLS 14 24 38.09400 +22 56 00.5900   16.77 15.84 14.79   ~ 355 0
20 7C 154712.40+305620.00 G 15 49 12.6 +30 47 17           ~ 80 2
21 QSO B1600+4344 QSO 16 01 40.4818 +43 16 47.394   22.12 21.92     ~ 178 1
22 NVSS J160914+653229 rG 16 09 13.96 +65 32 28.8     19.4     ~ 194 1
23 QSO J1654+1346 QSO 16 54 41.82 +13 46 21.8     20.93     ~ 82 1
24 QSO B1830-211 Bla 18 33 39.92 -21 03 39.9     18.70 21   ~ 573 1
25 CLASS B1933+503 Rad 19 34 31.02 +50 25 23.5           ~ 83 1
26 BWE 1938+6641 gLe 19 38 25.32029 +66 48 53.4199           ~ 94 2
27 QSO B2016+112 QSO 20 19 18.2 +11 27 14     22.5     ~ 193 1

    Equat.    Gal    SGal    Ecl

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