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Query : 2005MNRAS.358..233F |
2005MNRAS.358..233F - Mon. Not. R. Astron. Soc., 358, 233-255 (2005/March-3)
On the evolutionary status of early-type galaxies in clusters at z~ 0.2 - I. The Fundamental Plane.
FRITZ A., ZIEGLER B.L., BOWER R.G., SMAIL I. and DAVIES R.L.
Abstract (from CDS):
As the A2218 and A2390 samples are very similar, we can combine them and analyse a total number of 96 early-type (E+S0) galaxies at z∼ 0.2. Using the ground-based data only, we construct the Faber-Jackson relation (FJR) for all 96 E+S0 galaxies and detect a modest luminosity evolution with respect to the local reference. The average offset from the local FJR in the Gunn r band is. Similar results are derived for each cluster separately. Less massive galaxies show a trend for a larger evolution than more massive galaxies. HST/WFPC2 surface brightness profile fits were used to derive the structural parameters for a subsample of 34 E+S0 galaxies. We explore the evolution of the Fundamental Plane (FP) in Gunn r, its projections on to the Kormendy relation and the M/L ratios as a function of velocity dispersion. The FP for the cluster galaxies is offset from the local Coma cluster FP. At a fixed effective radius and velocity dispersion our galaxies are brighter than their local counterparts. For the total sample of 34 E+S0 cluster galaxies which enter the FP we deduce only a mild evolution with a zero-point offset of 0.10±0.06, corresponding to a brightening of 0.31±0.18 mag. Elliptical and lenticular galaxies are uniformly distributed along the FP with a similar scatter of 0.1 dex. Within our sample we find little evidence for differences between the populations of elliptical and S0 galaxies. There is a slight trend that lenticulars induce on average a larger evolution of 0.44±0.18 mag than ellipticals with 0.02 ±0.21 mag. The M/L ratios of our distant cluster galaxies at z= 0.2 are offset by Δlog(M/Lr) =-0.12±0.06 dex compared with those of Coma. Our results can be reconciled with a passive evolution of the stellar populations and a high formation redshift for the bulk of the stars in early-type galaxies. However, our findings are also consistent with the hierarchical formation picture for rich clusters, if ellipticals in clusters had their last major merger at high redshift.
Abstract Copyright: 2005 RAS
Journal keyword(s): galaxies: clusters: individual: Abell 2218 - galaxies: clusters: individual: Abell 2390 - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: fundamental parameters - galaxies: kinematics and dynamics
VizieR on-line data: <Available at CDS (J/MNRAS/358/233): tableb1.dat tableb2.dat>
Nomenclature: Fig.2, Tables B1, B2: [FZB2005] NNNN N=48+4 among (Nos 803-6666).
Simbad objects: 62
Number of rows : 62 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | ACO S 373 | ClG | 03 38 29.4 | -35 27 08 | ~ | 1816 | 0 | |||||
2 | ACO 665 | ClG | 08 30 45.2 | +65 52 55 | ~ | 437 | 0 | |||||
3 | * 39 Cnc | * | 08 40 06.4182853944 | +20 00 28.034963316 | 8.20 | 7.37 | 6.39 | 5.67 | 5.20 | G8+III-IIIb | 196 | 0 |
4 | * del Cnc | ** | 08 44 41.0991810454 | +18 09 15.509048595 | 6.01 | 5.02 | 3.94 | 3.16 | 2.62 | K0+IIIb | 203 | 0 |
5 | ACO 1656 | ClG | 12 59 44.40 | +27 54 44.9 | ~ | 4784 | 2 | |||||
6 | ZwCl 1358+6245 | ClG | 13 59 54.3 | +62 30 36 | 18.5 | ~ | 361 | 0 | ||||
7 | ACO 2218 | ClG | 16 35 54.0 | +66 13 00 | ~ | 808 | 1 | |||||
8 | * d Cyg | PM* | 19 50 37.7235287221 | +52 59 16.790345304 | 7.84 | 6.31 | 5.03 | K3IIICN2 | 177 | 0 | ||
9 | SDSS J215321.18+174205.9 | GiC | 21 53 21.18365 | +17 42 05.8138 | ~ | 4 | 0 | |||||
10 | CNOC ACO 2390 101935 | GiC | 21 53 22.5899 | +17 44 10.134 | ~ | 4 | 0 | |||||
11 | CNOC ACO 2390 101961 | GiC | 21 53 25.146 | +17 44 16.95 | ~ | 3 | 0 | |||||
12 | CNOC ACO 2390 101800 | GiC | 21 53 25.7901 | +17 43 40.162 | ~ | 4 | 0 | |||||
13 | [FZB2005] 3805 | GiC | 21 53 27.091 | +17 43 36.42 | ~ | 1 | 0 | |||||
14 | CNOC ACO 2390 102174 | GiC | 21 53 27.658 | +17 45 06.43 | ~ | 3 | 0 | |||||
15 | CNOC ACO 2390 101992 | GiC | 21 53 27.9175456824 | +17 44 23.282916396 | ~ | 4 | 0 | |||||
16 | CNOC ACO 2390 101274 | GiC | 21 53 28.2477 | +17 42 12.061 | ~ | 3 | 0 | |||||
17 | SDSS J215328.73+174251.8 | GiC | 21 53 28.7305713672 | +17 42 51.783617592 | ~ | 5 | 0 | |||||
18 | [FZB2005] 3529 | GiC | 21 53 30.2113 | +17 43 57.334 | ~ | 2 | 0 | |||||
19 | CNOC ACO 2390 102090 | GiC | 21 53 30.9773 | +17 44 45.180 | ~ | 4 | 0 | |||||
20 | CNOC ACO 2390 101033 | GiC | 21 53 31.422 | +17 41 33.68 | ~ | 8 | 0 | |||||
21 | SDSS J215331.47+174228.3 | GiC | 21 53 31.4667641760 | +17 42 28.266534828 | ~ | 7 | 0 | |||||
22 | CNOC ACO 2390 101197 | GiC | 21 53 31.9462 | +17 41 58.957 | ~ | 5 | 0 | |||||
23 | CNOC ACO 2390 101497 | GiC | 21 53 32.404 | +17 42 48.76 | ~ | 4 | 0 | |||||
24 | SDSS J215333.66+174126.6 | GiC | 21 53 33.6584116272 | +17 41 26.641672260 | ~ | 7 | 0 | |||||
25 | SDSS J215334.57+174213.6 | GiC | 21 53 34.5712 | +17 42 13.684 | ~ | 6 | 0 | |||||
26 | SDSS J215334.58+174157.0 | GiC | 21 53 34.5897 | +17 41 57.079 | ~ | 7 | 0 | |||||
27 | CNOC ACO 2390 101496 | GiC | 21 53 35.1304 | +17 42 48.939 | ~ | 3 | 0 | |||||
28 | SDSS J215336.01+174212.6 | GiC | 21 53 36.0096717864 | +17 42 12.585528900 | ~ | 5 | 0 | |||||
29 | CNOC ACO 2390 100908 | GiC | 21 53 36.2353455744 | +17 41 12.101889840 | ~ | 6 | 0 | |||||
30 | [FZB2005] 3053 | GiC | 21 53 36.5153398296 | +17 44 12.955007724 | ~ | 2 | 0 | |||||
31 | CNOC ACO 2390 100693 | GiC | 21 53 36.848 | +17 40 34.89 | ~ | 4 | 0 | |||||
32 | ACO 2390 | ClG | 21 53 37.4 | +17 41 46 | ~ | 686 | 2 | |||||
33 | CNOC ACO 2390 100881 | GiC | 21 53 37.7087 | +17 41 08.726 | ~ | 5 | 0 | |||||
34 | CNOC ACO 2390 100975 | GiC | 21 53 37.7223288216 | +17 41 24.139489236 | ~ | 5 | 0 | |||||
35 | SDSS J215337.93+173825.7 | GiC | 21 53 37.9337212752 | +17 38 25.651351680 | ~ | 6 | 0 | |||||
36 | CNOC ACO 2390 101106 | GiC | 21 53 38.369 | +17 41 47.78 | ~ | 5 | 0 | |||||
37 | CNOC ACO 2390 101099 | GiC | 21 53 38.4 | +17 41 48 | ~ | 3 | 1 | |||||
38 | [FZB2005] 6666 | GiC | 21 53 39.059 | +17 42 59.13 | ~ | 1 | 0 | |||||
39 | CNOC ACO 2390 100873 | GiC | 21 53 39.2465 | +17 41 08.055 | ~ | 5 | 0 | |||||
40 | CNOC ACO 2390 100703 | GiC | 21 53 39.944 | +17 40 37.38 | ~ | 4 | 0 | |||||
41 | SDSS J215340.33+173759.1 | GiC | 21 53 40.3282727568 | +17 37 59.030628456 | ~ | 4 | 0 | |||||
42 | CNOC ACO 2390 100852 | GiC | 21 53 40.518 | +17 41 03.88 | ~ | 3 | 0 | |||||
43 | CNOC ACO 2390 100773 | GiC | 21 53 40.606 | +17 40 50.81 | ~ | 4 | 0 | |||||
44 | CNOC ACO 2390 101143 | GiC | 21 53 42.7763 | +17 41 53.243 | ~ | 6 | 0 | |||||
45 | SDSS J215343.24+174118.8 | GiC | 21 53 43.2480 | +17 41 18.876 | ~ | 5 | 0 | |||||
46 | SDSS J215343.95+174048.6 | GiC | 21 53 43.9531017888 | +17 40 48.624396348 | ~ | 6 | 0 | |||||
47 | [FZB2005] 1507 | GiC | 21 53 45.512 | +17 39 57.40 | ~ | 1 | 0 | |||||
48 | CNOC ACO 2390 100722 | GiC | 21 53 45.708 | +17 40 43.92 | ~ | 3 | 0 | |||||
49 | SDSS J215345.72+174131.2 | GiC | 21 53 45.7230 | +17 41 31.290 | ~ | 5 | 0 | |||||
50 | CNOC ACO 2390 100809 | GiC | 21 53 46.558 | +17 40 56.81 | ~ | 4 | 0 | |||||
51 | SDSS J215346.56+173819.1 | GiC | 21 53 46.5689 | +17 38 19.125 | ~ | 6 | 0 | |||||
52 | SDSS J215346.93+173948.3 | GiC | 21 53 46.9313109288 | +17 39 48.292260948 | ~ | 6 | 0 | |||||
53 | CNOC ACO 2390 100343 | GiC | 21 53 47.789 | +17 39 25.65 | ~ | 3 | 0 | |||||
54 | SDSS J215347.86+174245.0 | GiC | 21 53 47.8677 | +17 42 45.010 | ~ | 6 | 0 | |||||
55 | CNOC ACO 2390 100615 | GiC | 21 53 48.694 | +17 40 24.96 | ~ | 4 | 0 | |||||
56 | CNOC ACO 2390 100727 | GiC | 21 53 48.952 | +17 40 46.37 | ~ | 4 | 0 | |||||
57 | SDSS J215349.87+173913.6 | GiC | 21 53 49.8715 | +17 39 13.671 | ~ | 6 | 0 | |||||
58 | SDSS J215350.44+174057.9 | GiC | 21 53 50.46008 | +17 40 58.1084 | ~ | 5 | 0 | |||||
59 | CNOC ACO 2390 100816 | GiC | 21 53 51.994 | +17 40 58.94 | ~ | 4 | 0 | |||||
60 | CNOC ACO 2390 100519 | GiC | 21 53 54.4571 | +17 40 05.979 | ~ | 4 | 0 | |||||
61 | SDSS J215356.67+174038.2 | GiC | 21 53 56.6786170608 | +17 40 38.165991240 | ~ | 5 | 0 | |||||
62 | [FZB2005] 1639 | GiC | 21 53 57.073 | +17 39 58.11 | ~ | 1 | 0 |
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