2017MNRAS.464.2910S

Query : 2017MNRAS.464.2910S

2017MNRAS.464.2910S - Mon. Not. R. Astron. Soc., 464, 2910-2929 (2017/January-3)

The stellar mass-size relation for cluster galaxies at z = 1 with high angular resolution from the Gemini/GeMS multiconjugate adaptive optics system.

SWEET S.M., SHARP R., GLAZEBROOK K., RIGAUT F., CARRASCO E.R., BRODWIN M., BAYLISS M., STALDER B., ABRAHAM R. and McGREGOR P.

Abstract (from CDS):

We present the stellar mass-size relation for 49 galaxies within the z = 1.067 cluster SPT-CL J0546-5345, with full width at half-maximum ∼80-120 mas Ks-band data from the Gemini multiconjugate adaptive optics system (GeMS/GSAOI). This is the first such measurement in a cluster environment, performed at sub-kpc resolution at rest-frame wavelengths dominated by the light of the underlying old stellar populations. The observed stellar mass-size relation is offset from the local relation by 0.21 dex, corresponding to a size evolution proportional to (1 + z)–1.25, consistent with the literature. The slope of the stellar mass-size relation β = 0.74 ± 0.06, consistent with the local relation. The absence of slope evolution indicates that the amount of size growth is constant with stellar mass. This suggests that galaxies in massive clusters such as SPT-CL J0546-5345 grow via processes that increase the size without significant morphological interference, such as minor mergers and/or adiabatic expansion. The slope of the cluster stellar mass-size relation is significantly shallower if measured in Hubble Space Telescope (HST)/Advanced Camera for Surveys imaging at wavelengths blueward of the Balmer break, similar to rest-frame ultraviolet relations at z = 1 in the literature. The stellar mass-size relation must be measured at redder wavelengths, which are more sensitive to the old stellar population that dominates the stellar mass of the galaxies. The slope is unchanged when GeMS Ks-band imaging is degraded to the resolution of K-band HST/Near Infrared Camera and Multi-Object Spectrometer resolution but dramatically affected when degraded to Ks-band Magellan/FourStar resolution. Such measurements must be made with adaptive optics in order to accurately characterize the sizes of compact, z = 1 galaxies.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instrumentation: adaptive optics - galaxies: clusters: general - galaxies: clusters: individual: SPT-CL J0546-5345 - galaxies: clusters: individual: SPT-CL J0546-5345

Nomenclature: Tables 1-2: [SSG2017] NNN N=124 among (Nos 3-129).

Simbad objects: 127

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Number of rows : 127
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 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
3 [SSG2017] 104 G 05 46 29.80 -53 45 24.6         24.29 ~ 1 0
4 [SSG2017] 119 * 05 46 29.94 -53 45 13.8         22.39 ~ 1 0
5 [SSG2017] 110 G 05 46 30.14 -53 45 20.4         23.66 ~ 1 0
6 [RBB2014] J054630.15-534525.3 G 05 46 30.150 -53 45 25.34         22.66 ~ 3 0
7 [SSG2017] 96 ? 05 46 30.48 -53 45 27.1         23.72 ~ 1 0
8 [SSG2017] 125 G 05 46 30.55 -53 45 05.6         23.87 ~ 1 0
9 [SSG2017] 19 ? 05 46 31.08 -53 45 57.4         22.59 ~ 1 0
10 [SSG2017] 59 ? 05 46 31.11 -53 45 39.9         24.18 ~ 1 0
11 [SSG2017] 5 ? 05 46 31.14 -53 46 12.8         23.70 ~ 1 0
12 [SSG2017] 18 G 05 46 31.52 -53 46 02.6         24.72 ~ 1 0
13 [SSG2017] 38 ? 05 46 31.90 -53 45 49.0           ~ 1 0
14 [SSG2017] 88 G 05 46 31.96 -53 45 29.6         22.98 ~ 1 0
15 [SSG2017] 45 G 05 46 32.09 -53 45 45.0         24.55 ~ 1 0
16 [SSG2017] 7 ? 05 46 32.13 -53 46 10.1         25.99 ~ 1 0
17 [SSG2017] 79 ? 05 46 32.13 -53 45 31.7         24.91 ~ 1 0
18 [SSG2017] 81 ? 05 46 32.17 -53 45 28.6         22.73 ~ 1 0
19 [SSG2017] 3 ? 05 46 32.28 -53 46 21.3         23.32 ~ 1 0
20 [SSG2017] 30 ? 05 46 32.34 -53 45 50.7         21.09 ~ 1 0
21 [SSG2017] 48 G 05 46 32.39 -53 45 44.2         24.11 ~ 1 0
22 [SSG2017] 51 ? 05 46 32.42 -53 45 43.0         24.15 ~ 1 0
23 [SSG2017] 56 ? 05 46 32.48 -53 45 41.7         25.10 ~ 1 0
24 [SSG2017] 114 ? 05 46 32.56 -53 45 18.3           ~ 1 0
25 [SSG2017] 46 G 05 46 32.58 -53 45 45.2         25.23 ~ 1 0
26 [SSG2017] 64 ? 05 46 32.63 -53 45 34.6         23.62 ~ 1 0
27 [SSG2017] 78 * 05 46 32.6671350792 -53 45 30.193786476         21.23 ~ 1 0
28 [SSG2017] 24 ? 05 46 32.70 -53 45 56.8         24.73 ~ 1 0
29 [SSG2017] 73 ? 05 46 32.73 -53 45 33.1         25.39 ~ 1 0
30 [SSG2017] 49 ? 05 46 32.82 -53 45 44.0           ~ 1 0
31 SMH J054632.9-534524.1 G 05 46 32.83 -53 45 24.3         23.34 ~ 2 0
32 [SSG2017] 28 ? 05 46 33.14 -53 45 53.9         25.12 ~ 1 0
33 [SSG2017] 108 * 05 46 33.2110972872 -53 45 19.183566168         19.87 ~ 1 0
34 SMH J054633.3-534524.1 G 05 46 33.24 -53 45 24.3         23.09 ~ 2 0
35 SMH J054633.4-534541.0 G 05 46 33.33 -53 45 41.4         23.00 ~ 3 0
36 [SSG2017] 120 G 05 46 33.34 -53 45 13.6         24.83 ~ 1 0
37 [SSG2017] 70 * 05 46 33.3845857704 -53 45 30.904012872         20.20 ~ 1 0
38 [SSG2017] 4 ? 05 46 33.47 -53 46 16.1         25.28 ~ 1 0
39 SMH J054633.6-534540.6 G 05 46 33.67 -53 45 40.5         22.23 ~ 6 0
40 [SSG2017] 124 ? 05 46 33.81 -53 45 06.0           ~ 1 0
41 [SSG2017] 82 * 05 46 33.8908192968 -53 45 29.020483800         21.48 ~ 1 0
42 [SSG2017] 101 ? 05 46 33.98 -53 45 25.9         24.88 ~ 1 0
43 [SSG2017] 15 ? 05 46 34.08 -53 46 03.9         24.31 ~ 1 0
44 [SSG2017] 17 G 05 46 34.19 -53 46 03.2         23.09 ~ 1 0
45 [SSG2017] 36 G 05 46 34.30 -53 45 49.2         23.93 ~ 1 0
46 [SSG2017] 26 G 05 46 34.41 -53 45 56.1         24.13 ~ 1 0
47 [ALB2018] ACTJ0546-2 G 05 46 34.50 -53 45 52.4         24.44 ~ 2 0
48 SMH J054634.6-534547.8 G 05 46 34.52 -53 45 48.0         23.25 ~ 3 0
49 [SSG2017] 6 ? 05 46 34.53 -53 46 08.6         23.92 ~ 1 0
50 [SSG2017] 91 ? 05 46 34.55 -53 45 26.7         23.96 ~ 1 0
51 [SSG2017] 127 ? 05 46 34.58 -53 44 58.3         25.46 ~ 1 0
52 [SSG2017] 41 ? 05 46 34.66 -53 45 46.4         23.60 ~ 1 0
53 [SSG2017] 21 ? 05 46 34.75 -53 46 00.2         24.52 ~ 1 0
54 [SSG2017] 118 ? 05 46 34.75 -53 45 14.5           ~ 1 0
55 SMH J054634.8-534555.4 G 05 46 34.81 -53 45 55.6         22.62 ~ 5 0
56 [SSG2017] 61 G 05 46 34.82 -53 45 35.9           ~ 1 0
57 [SSG2017] 99 ? 05 46 34.90 -53 45 26.2         24.74 ~ 1 0
58 SMH J054635.1-534506.1 G 05 46 35.07 -53 45 06.0         24.04 ~ 3 0
59 [SSG2017] 109 ? 05 46 35.10 -53 45 20.6         24.78 ~ 1 0
60 SMH J054635.1-534501.8 G 05 46 35.14 -53 45 02.0         22.75 ~ 5 0
61 [SSG2017] 74 ? 05 46 35.20 -53 45 32.9           ~ 1 0
62 SMH J054635.3-534541.4 G 05 46 35.25 -53 45 41.7           ~ 3 0
63 SMH J054635.3-534520.1 G 05 46 35.32 -53 45 20.4         22.92 ~ 3 0
64 [SSG2017] 113 * 05 46 35.35 -53 45 18.5         22.59 ~ 1 0
65 [SSG2017] 115 * 05 46 35.4445091928 -53 45 11.874099492         19.52 ~ 1 0
66 SMH J054635.7-534545.7 G 05 46 35.67 -53 45 45.7         23.65 ~ 3 0
67 [SSG2017] 34 ? 05 46 35.80 -53 45 51.6         26.05 ~ 1 0
68 SMH J054635.8-534542.1 G 05 46 35.82 -53 45 42.0         23.09 ~ 5 0
69 [RBB2014] J054635.92-534605.5 G 05 46 35.923 -53 46 05.57         23.07 ~ 2 0
70 [SSG2017] 13 ? 05 46 36.02 -53 46 04.4         24.65 ~ 1 0
71 [SSG2017] 66 ? 05 46 36.13 -53 45 34.7         24.23 ~ 1 0
72 [SSG2017] 117 G 05 46 36.14 -53 45 15.3         24.35 ~ 1 0
73 [SSG2017] 100 ? 05 46 36.16 -53 45 26.0           ~ 1 0
74 [SSG2017] 8 ? 05 46 36.18 -53 46 09.5         25.25 ~ 1 0
75 [SSG2017] 98 ? 05 46 36.30 -53 45 26.8         26.75 ~ 1 0
76 [SSG2017] 106 * 05 46 36.36 -53 45 21.7         22.21 ~ 1 0
77 [SSG2017] 71 ? 05 46 36.38 -53 45 33.9         24.96 ~ 1 0
78 [SSG2017] 93 G 05 46 36.39 -53 45 26.2         23.53 ~ 1 0
79 [SSG2017] 122 ? 05 46 36.39 -53 45 09.6         24.21 ~ 1 0
80 [SSG2017] 16 ? 05 46 36.43 -53 46 03.6           ~ 1 0
81 [SSG2017] 39 ? 05 46 36.46 -53 45 48.6         24.75 ~ 1 0
82 [SSG2017] 54 G 05 46 36.52 -53 45 41.6         24.54 ~ 1 0
83 [SSG2017] 121 G 05 46 36.57 -53 45 11.3         23.78 ~ 1 0
84 [SSG2017] 58 ? 05 46 36.59 -53 45 41.5         25.24 ~ 1 0
85 [SSG2017] 129 * 05 46 36.6526829400 -53 44 48.470516808         21.30 ~ 1 0
86 [SSG2017] 128 * 05 46 36.6526829400 -53 44 48.470516808         21.06 ~ 1 0
87 [SSG2017] 83 G 05 46 36.66 -53 45 30.7         24.12 ~ 1 0
88 [SSG2017] 97 G 05 46 36.66 -53 45 26.4         24.17 ~ 1 0
89 [SSG2017] 116 G 05 46 36.66 -53 45 15.6         24.15 ~ 1 0
90 [RBB2014] J054636.67-534553.2 G 05 46 36.676 -53 45 53.27         22.66 ~ 2 0
91 [SSG2017] 23 ? 05 46 36.71 -53 45 56.7         24.51 ~ 1 0
92 [SSG2017] 105 ? 05 46 36.72 -53 45 24.4           ~ 1 0
93 [SSG2017] 76 ? 05 46 36.80 -53 45 32.8         25.23 ~ 1 0
94 [SSG2017] 57 G 05 46 36.89 -53 45 41.0         24.12 ~ 1 0
95 [SSG2017] 65 G 05 46 36.89 -53 45 35.4         24.37 ~ 1 0
96 [SSG2017] 10 ? 05 46 36.95 -53 46 06.0         25.29 ~ 1 0
97 [SSG2017] 86 G 05 46 36.98 -53 45 30.3         24.19 ~ 1 0
98 [SSG2017] 89 G 05 46 37.16 -53 45 30.0         24.76 ~ 1 0
99 [SSG2017] 85 G 05 46 37.20 -53 45 29.5         23.65 ~ 1 0
100 SMH J054637.2-534525.5 G 05 46 37.23 -53 45 25.6         22.97 ~ 5 0
101 [SSG2017] 84 ? 05 46 37.25 -53 45 30.6         25.05 ~ 1 0
102 [SSG2017] 14 ? 05 46 37.35 -53 46 03.7         23.46 ~ 1 0
103 [SSG2017] 32 G 05 46 37.43 -53 45 51.7         24.21 ~ 1 0
104 [SSG2017] 67 G 05 46 37.44 -53 45 34.4         23.97 ~ 1 0
105 [SSG2017] 77 G 05 46 37.57 -53 45 31.3         22.79 ~ 1 0
106 ACT-CL J0546.6-5345 ClG 05 46 37.6557 -53 45 33.242           ~ 98 0
107 [SSG2017] 80 G 05 46 37.67 -53 45 31.8         24.42 ~ 1 0
108 [SSG2017] 75 G 05 46 37.70 -53 45 32.7         24.05 ~ 1 0
109 [SSG2017] 44 ? 05 46 37.74 -53 45 44.2         22.79 ~ 1 0
110 [SSG2017] 90 G 05 46 37.78 -53 45 29.0         25.00 ~ 1 0
111 [SSG2017] 31 G 05 46 37.79 -53 45 50.8         23.32 ~ 1 0
112 [SSG2017] 72 G 05 46 37.79 -53 45 32.0         23.32 ~ 1 0
113 [SSG2017] 94 ? 05 46 37.79 -53 45 26.7           ~ 1 0
114 [SSG2017] 112 ? 05 46 37.80 -53 45 20.0         26.16 ~ 1 0
115 [SSG2017] 69 G 05 46 37.83 -53 45 33.0         23.15 ~ 1 0
116 SMH J054638.0-534534.9 G 05 46 37.93 -53 45 35.5         23.02 ~ 3 0
117 [SSG2017] 111 G 05 46 38.04 -53 45 20.1         24.35 ~ 1 0
118 [SSG2017] 68 ? 05 46 38.11 -53 45 34.5         24.65 ~ 1 0
119 [SSG2017] 42 ? 05 46 38.22 -53 45 47.1         25.30 ~ 1 0
120 [SSG2017] 33 ? 05 46 38.35 -53 45 51.4         25.36 ~ 1 0
121 [SSG2017] 22 * 05 46 38.57 -53 45 58.1         21.80 ~ 1 0
122 [SSG2017] 9 * 05 46 38.6343469920 -53 46 06.493669572         19.66 ~ 1 0
123 SMH J054638.8-534536.0 G 05 46 38.75 -53 45 36.4         23.11 ~ 3 0
124 [SSG2017] 63 G 05 46 38.88 -53 45 36.1         24.71 ~ 1 0
125 [SSG2017] 12 ? 05 46 39.11 -53 46 05.6           ~ 1 0
126 [SSG2017] 35 ? 05 46 39.29 -53 45 50.9         40.02 ~ 1 0
127 [SSG2017] 20 G 05 46 39.67 -53 46 00.5         23.67 ~ 1 0

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