2017A&A...597A.122S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.15CEST08:31:37

2017A&A...597A.122S - Astronomy and Astrophysics, volume 597A, 122-122 (2017/1-1)

Cluster and field elliptical galaxies at z ∼ 1.3 The marginal role of the environment and the relevance of the galaxy central regions.

SARACCO P., GARGIULO A., CIOCCA F. and MARCHESINI D.

Abstract (from CDS):

Aims. The aim of this work is twofold: first, to assess whether the population of elliptical galaxies in cluster at z∼1.3 differs from the population in the field and whether their intrinsic structure depends on the environment where they belong; second, to constrain their properties 9Gyr back in time through the study of their scaling relations.
Methods. We compared a sample of 56 cluster elliptical galaxies selected from three clusters at 1.2<z<1.4 with elliptical galaxies selected at comparable redshift in the GOODS-South field (∼30), in the COSMOS area (∼180), and in the CANDELS fields (∼220). To single out the environmental effects, we selected cluster and field elliptical galaxies according to their morphology. We compared physical and structural parameters of galaxies in the two environments and we derived the relationships between effective radius, surface brightness, stellar mass, and stellar mass density ΣRe within the effective radius and central mass density Σ1kpc, within 1kpc radius.
Results. We find that the structure and the properties of cluster elliptical galaxies do not differ from those in the field: they are characterized by the same structural parameters at fixed mass and they follow the same scaling relations. On the other hand, the population of field elliptical galaxies at z∼1.3 shows a significant lack of massive (M*>2x1011M) and large (Re>4-5kpc) elliptical galaxies with respect to the cluster. Nonetheless, at M*<2x1011M, the two populations are similar. The size-mass relation of cluster and field ellipticals at z∼1.3 clearly defines two different regimes, above and below a transition mass mt~=2-3x1010M: at lower masses the relation is nearly flat (Re∝M*–0.1±0.2), the mean radius is nearly constant at ∼1kpc and, consequenly, ΣRe~=Σ1kpc while, at larger masses, the relation is Re∝M*0.64±0.09. The transition mass marks the mass at which galaxies reach the maximum stellar mass density. Also the Σ1kpc-mass relation follows two different regimes, above and below the transition mass (Σ1kpc∝M*1.07<mt0.64>mt) defining a transition mass density Σ1kpc~=2-3x103M/pc2. The effective stellar mass density ΣRe does not correlate with mass; dense/compact galaxies can be assembled over a wide mass regime, independently of the environment. The central stellar mass density, Σ1kpc, besides being correlated with the mass, is correlated to the age of the stellar population: the higher the central stellar mass density, the higher the mass, the older the age of the stellar population.
Conclusions. While we found some evidence of environmental effects on the elliptical galaxies as a population, we did not find differences between the intrinsic properties of cluster and field elliptical galaxies at comparable redshift. The structure and the shaping of elliptical galaxies at z∼1.3 do not depend on the environment. However, a dense environment seems to be more efficient in assembling high-mass large ellipticals, much rarer in the field at this redshift. The correlation found between the central stellar mass density and the age of the galaxies beside the mass shows the close connection of the central regions to the main phases of mass growth.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: clusters: general - galaxies: high-redshift - galaxies: formation

VizieR on-line data: <Available at CDS (J/A+A/597/A122): tableb1.dat tableb2.dat>

Nomenclature: Table B.1: [SGC2017] XMM2235 NNNN N=17 among (Nos 358-2809), [SGC2017] XLSS0223 NNNN N=23 among (Nos 406-1711). Table B.2: [SGC2017] GOODS-South NNNN N=31 among (Nos 231-9702).

Status at CDS:   All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 93

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Number of rows : 93

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [SGC2017] XLSS0223 1448 G 02 22 58.8690 -04 36 49.890           ~ 2 0
2 [SGC2017] XLSS0223 1711 G 02 22 59.9900 -04 36 02.530           ~ 2 0
3 [SGC2017] XLSS0223 1302 G 02 23 00.8820 -04 35 39.850           ~ 2 0
4 [BVW2006] G7 GiC 02 23 00.9290 -04 36 50.190           ~ 3 0
5 [SGC2017] XLSS0223 1370 G 02 23 02.0210 -04 36 43.260           ~ 2 0
6 [SGC2017] XLSS0223 1199 G 02 23 02.9220 -04 36 14.550           ~ 1 0
7 [SGC2017] XLSS0223 1184 G 02 23 02.9560 -04 36 09.740           ~ 1 0
8 XLSSC 046 ClG 02 23 03.0 -04 36 22           ~ 33 0
9 [SGC2017] XLSS0223 1188 G 02 23 03.0370 -04 36 12.360           ~ 1 0
10 [SGC2017] XLSS0223 1171 G 02 23 03.1070 -04 36 10.930           ~ 1 0
11 SDSS J022303.22-043614.4 GiC 02 23 03.225 -04 36 14.44           ~ 4 0
12 2XLSSd J022303.2-043619 AGN 02 23 03.24 -04 36 19.1           ~ 3 0
13 [SGC2017] XLSS0223 1144 G 02 23 03.2530 -04 36 07.870           ~ 1 0
14 [SGC2017] XLSS0223 1263 G 02 23 03.2910 -04 36 54.590           ~ 1 0
15 [SGC2017] XLSS0223 1151 G 02 23 03.6870 -04 36 23.340           ~ 1 0
16 [SGC2017] XLSS0223 1101 G 02 23 04.0970 -04 36 22.500           ~ 1 0
17 [SGC2017] XLSS0223 1090 G 02 23 04.1280 -04 36 20.300           ~ 1 0
18 [SGC2017] XLSS0223 994 G 02 23 04.3270 -04 36 01.510           ~ 1 0
19 [BVW2006] G3 GiC 02 23 04.7180 -04 36 13.470           ~ 3 0
20 [SGC2017] XLSS0223 983 G 02 23 04.8430 -04 36 19.870           ~ 2 0
21 [SGC2017] XLSS0223 406 G 02 23 04.9180 -04 34 36.310           ~ 1 0
22 [BVW2006] G2 GiC 02 23 05.4200 -04 36 36.260           ~ 3 0
23 [BVW2006] G1 GiC 02 23 05.7590 -04 36 10.270           ~ 3 0
24 [SGC2017] XLSS0223 537 G 02 23 08.4850 -04 37 18.070           ~ 2 0
25 [SGC2017] GOODS-South 1960 G 03 32 05.2600 +27 45 52.400           ~ 1 0
26 [SGC2017] GOODS-South 2505 G 03 32 06.8120 +27 45 24.350           ~ 1 0
27 [SGC2017] GOODS-South 4220 G 03 32 07.5520 +27 43 56.640           ~ 1 0
28 [SGC2017] GOODS-South 8849 G 03 32 10.7300 +27 48 19.370           ~ 1 0
29 [SGC2017] GOODS-South 2294 G 03 32 11.2100 +27 45 33.450           ~ 1 0
30 [SGC2017] GOODS-South 7158 G 03 32 11.2600 +27 41 27.010           ~ 1 0
31 [SGC2017] GOODS-South 7022 G 03 32 14.6500 +27 41 36.620           ~ 1 0
32 [SGC2017] GOODS-South 9369 G 03 32 16.0200 +27 47 50.000           ~ 1 0
33 [SGC2017] GOODS-South 2623 G 03 32 16.9400 +27 45 19.360           ~ 1 0
34 [SGC2017] GOODS-South 7506 G 03 32 20.0900 +27 41 06.753           ~ 1 0
35 [SGC2017] GOODS-South 2659 G 03 32 23.9000 +27 53 26.220           ~ 1 0
36 [SGC2017] GOODS-South 1383 G 03 32 24.8000 +27 46 17.910           ~ 1 0
37 [SGC2017] GOODS-South 4953 G 03 32 25.9800 +27 43 18.930           ~ 1 0
38 [SGC2017] GOODS-South 2000 G 03 32 26.2700 +27 45 50.710           ~ 1 0
39 [SGC2017] GOODS-South 2737 G 03 32 26.3600 +27 45 14.090           ~ 1 0
40 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1053 1
41 [SGC2017] GOODS-South 2789 G 03 32 29.8200 +27 45 10.780           ~ 1 0
42 [SGC2017] GOODS-South 6103 G 03 32 31.0500 +27 42 26.450           ~ 1 0
43 [SGC2017] GOODS-South 4887 G 03 32 31.3400 +27 51 32.480           ~ 1 0
44 [SGC2017] GOODS-South 9702 G 03 32 35.7900 +27 47 34.770           ~ 1 0
45 [SGC2017] GOODS-South 4057 G 03 32 37.9500 +27 44 04.200           ~ 1 0
46 [SGC2017] GOODS-South 3493 G 03 32 38.1100 +27 44 32.600           ~ 1 0
47 [SGC2017] GOODS-South 231 G 03 32 39.6400 +27 47 09.110           ~ 1 0
48 [SGC2017] GOODS-South 6726 G 03 32 41.6300 +27 41 51.430           ~ 1 0
49 [SGC2017] GOODS-South 4651 G 03 32 42.1600 +27 51 44.320           ~ 1 0
50 [SGC2017] GOODS-South 4981 G 03 32 44.2700 +27 51 26.740           ~ 1 0
51 [SGC2017] GOODS-South 2797 G 03 32 44.6500 +27 45 10.520           ~ 1 0
52 [SGC2017] GOODS-South 7616 G 03 32 44.6700 +27 49 24.210           ~ 1 0
53 [SGC2017] GOODS-South 6989 G 03 32 46.1100 +27 49 53.470           ~ 1 0
54 [SGC2017] GOODS-South 3453 G 03 32 47.5600 +27 52 43.230           ~ 1 0
55 [SGC2017] GOODS-South 6791 G 03 32 50.1900 +27 50 01.040           ~ 1 0
56 [SGC2017] GOODS-South 2907 G 03 32 50.2200 +27 53 12.260           ~ 1 0
57 [SCG2014] 471 G 08 48 29.685 +44 53 23.91           ~ 3 0
58 [SCG2014] 626 G 08 48 32.390 +44 53 35.03   28.4 26.17 24.74   ~ 2 0
59 EES 65 GiC 08 48 32.4340 +44 53 34.970   28.4 26.17 24.74   ~ 6 0
60 [SCG2014] 657 G 08 48 32.442 +44 53 35.35   28.4 26.17 24.74   ~ 2 0
61 [RMN2011] 1794 G 08 48 32.768 +44 54 07.14           ~ 6 0
62 [SCG2014] 3 G 08 48 32.99 +44 53 46.7     26.65 24.93   ~ 10 0
63 [SCG2014] 719 G 08 48 33.031 +44 53 39.67       25.26   ~ 2 0
64 [SCG2014] 173 G 08 48 34.058 +44 53 02.44       26.83   ~ 3 0
65 [RMN2011] 2094 G 08 48 34.069 +44 53 32.23     26.06 24.79   ~ 5 0
66 ClG J0848+4453 ClG 08 48 34.800 +44 53 41.90           ~ 122 1
67 [SCG2014] 568 G 08 48 35.038 +44 53 30.83           ~ 2 0
68 2XMMp J084836.4+445345 G 08 48 35.98 +44 53 36.1     25.65 23.76   ~ 9 0
69 [SCG2014] 1260 G 08 48 36.160 +44 54 16.16           ~ 2 0
70 [JCT2014] 1888 G 08 48 36.17 +44 54 17.3     25.88 23.92   ~ 8 0
71 EES 135 GiC 08 48 36.2330 +44 53 55.420     27.00 24.65   ~ 6 0
72 [RMN2011] 2571 G 08 48 37.071 +44 53 33.99     27.25 25.39   ~ 6 0
73 [SCG2014] 1250 G 08 48 37.341 +44 54 15.60     27.87     ~ 2 0
74 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2069 0
75 NAME Extended Groth Strip reg 14 19 +52.8           ~ 579 0
76 [SGC2017] XMM2235 2429 G 22 35 17.8670 -25 56 13.060           ~ 2 0
77 [SGC2017] XMM2235 2166 G 22 35 18.1680 -25 59 05.890 26.50         ~ 2 0
78 [SGC2017] XMM2235 2809 G 22 35 18.2510 -25 56 06.170           ~ 2 0
79 [CBM2016] 433 G 22 35 19.0460 -25 57 51.420           ~ 4 0
80 [CBM2016] 36 G 22 35 19.0780 -25 58 27.320           ~ 4 0
81 [SGC2017] XMM2235 1747 G 22 35 20.5880 -25 58 20.680           ~ 2 0
82 ClG J2235-2557 ClG 22 35 20.6 -25 57 42           ~ 138 0
83 [CBM2016] 352 G 22 35 20.7070 -25 57 44.430 24.6         ~ 4 0
84 [CBM2016] 407 G 22 35 20.7070 -25 57 37.700           ~ 4 0
85 [CBM2016] 170 G 22 35 20.8390 -25 57 39.760 24.30         ~ 4 0
86 [SGC2017] XMM2235 1758 G 22 35 20.9200 -25 57 35.900           ~ 2 0
87 [SGC2017] XMM2235 1539 G 22 35 22.4720 -25 56 15.170 26.02         ~ 2 0
88 [CBM2016] 220 G 22 35 22.8140 -25 56 24.920           ~ 4 0
89 [SGC2017] XMM2235 837 G 22 35 24.8950 -25 56 37.030           ~ 2 0
90 [SGC2017] XMM2235 692 G 22 35 25.6800 -25 56 58.480           ~ 2 0
91 [SGC2017] XMM2235 684 G 22 35 25.8040 -25 56 46.000 25.9         ~ 2 0
92 [SGC2017] XMM2235 595 G 22 35 26.2200 -25 56 45.540 27.8         ~ 2 0
93 [SGC2017] XMM2235 358 G 22 35 27.0030 -25 58 14.110           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.07.15-08:31:37

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