2007ApJ...661..750T

Query : 2007ApJ...661..750T

2007ApJ...661..750T - Astrophys. J., 661, 750-767 (2007/June-1)

A Keck spectroscopic survey of MS 1054-03 (z = 0.83): forming the red sequence.

TRAN K.-V.H., FRANX M., ILLINGWORTH G.D., VAN DOKKUM P., KELSON D.D., BLAKESLEE J.P. and POSTMAN M.

Abstract (from CDS):

Using a magnitude-limited, spectroscopic survey of the X-ray-luminous galaxy cluster MS 1054-03, we isolate 153 cluster galaxies and measure MS 1054's redshift and velocity dispersion to be z=0.8307±0.0004 and σz=1156±82 km/s. The absorption-line, poststarburst (``E+A''), and emission-line galaxies, respectively, make up 63%±7%, 15%±4%, and 23%±4% of the cluster population. With photometry from HST ACS, we find that the absorption-line members define an exceptionally tight red sequence over a span of ∼3.5 mag in i775: their intrinsic scatter in (V606-i775) color is only 0.048±0.008, corresponding to a (U-B)z scatter of 0.041. Their color scatter is comparable to that of the ellipticals (σVi=0.055±0.008), but measurably smaller than that of the combined E+S0 sample (σVi=0.072±0.010). The color scatter of MS 1054's absorption-line population is approximately twice that of the ellipticals in Coma; this difference is consistent with passive evolution where most of the absorption-line members (>75%) formed by z∼2, and all of them by z∼1.2. For red members, we find a trend (>95% confidence) of weakening Hδ absorption with redder colors that we conclude is due to age: in MS 1054, the color scatter on the red sequence is driven by differences in mean stellar age of up to ∼1.5 Gyr. We also generate composite spectra and estimate that the average S0 in MS 1054 is ∼0.5-1 Gyr younger than the average elliptical; this difference in mean stellar age is mainly due to a number of S0's that are blue (18%) and/or are poststarburst systems (21%).

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: Individual: Alphanumeric: MS 1054-03 - Galaxies: Elliptical and Lenticular, cD - Galaxies: Evolution - Galaxies: Fundamental Parameters

VizieR on-line data: <Available at CDS (J/ApJ/661/750): table1.dat>

Nomenclature: Table 1, col(2): [VFK98] NNNN N=153 added among (Nos 159-8001).

Simbad objects: 145

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Number of rows : 145
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 ClG J0152-1358 ClG 01 52 41.3 -13 58 13           ~ 262 3
2 [SSE2005] A-2-0913-6313 GiC 10 56 46.12 -03 36 46.1           ~ 2 0
3 [VFK98] 255 G 10 56 47.52 -03 37 01.2           ~ 1 0
4 [VFK98] 426 G 10 56 47.60 -03 37 50.7           ~ 1 0
5 [SSE2005] A-3-0691-3115 GiC 10 56 49.88 -03 36 14.8           ~ 2 0
6 [SSE2005] B-2-5236-7594 GiC 10 56 49.92 -03 38 38.2           ~ 2 0
7 [FFL2006] 195 GiC 10 56 50.89 -03 38 47.1           ~ 3 0
8 [SSE2005] B-2-4828-6033 GiC 10 56 50.94 -03 38 34.1           ~ 2 0
9 [VFK98] 1266 G 10 56 50.99 -03 37 39.4           ~ 1 0
10 [SSE2005] B-2-1558-5421 GiC 10 56 51.32 -03 38 01.4           ~ 2 0
11 [VFK98] 1532 GiC 10 56 51.510 -03 36 09.61       22.59   ~ 2 0
12 [SSE2005] B-2-0682-4575 GiC 10 56 51.87 -03 37 52.6           ~ 2 0
13 [SSE2005] B-3-4380-2178 GiC 10 56 52.04 -03 37 33.6           ~ 2 0
14 [SSE2005] B-3-3464-2858 GiC 10 56 52.65 -03 37 26.8           ~ 2 0
15 [SSE2005] B-2-5448-1461 GiC 10 56 53.99 -03 38 39.6           ~ 2 0
16 [SSE2005] B-2-3202-0921 GiC 10 56 54.33 -03 38 17.2           ~ 2 0
17 [SSE2005] B-3-0835-5057 GiC 10 56 54.38 -03 37 04.7           ~ 2 0
18 [SSE2005] B-2-1469-0749 GiC 10 56 54.43 -03 37 59.9           ~ 2 0
19 [SSE2005] B-2-2645-0563 GiC 10 56 54.57 -03 38 11.6           ~ 2 0
20 [VFK98] 2467 G 10 56 54.87 -03 37 12.1           ~ 1 0
21 [SSE2005] C-2-0945-6840 GiC 10 56 55.00 -03 39 05.0           ~ 5 0
22 [VFK98] 2525 GiC 10 56 55.00 -03 38 14.7           ~ 1 0
23 [VFK98] 2538 GiC 10 56 55.03 -03 37 49.0           ~ 1 0
24 [SSE2005] B-4-0743-0902 GiC 10 56 55.04 -03 37 47.2           ~ 2 0
25 [SSE2005] C-3-6279-6616 GiC 10 56 55.39 -03 37 59.1           ~ 2 0
26 [VFK98] 2872 GiC 10 56 55.495 -03 38 16.43       22.67   ~ 3 0
27 [SSE2005] C-3-6122-6483 GiC 10 56 55.50 -03 38 00.4           ~ 2 0
28 [SSE2005] B-4-7508-1584 GiC 10 56 55.50 -03 36 40.2           ~ 2 0
29 [SSE2005] B-1-3672-3911 GiC 10 56 55.74 -03 38 05.5           ~ 2 0
30 [SSE2005] C-3-5445-3937 GiC 10 56 55.96 -03 38 25.6           ~ 2 0
31 [VFK98] 3043 GiC 10 56 56.011 -03 37 58.51       23.30   ~ 3 0
32 [SSE2005] C-2-5356-4751 GiC 10 56 56.42 -03 39 48.4           ~ 2 0
33 [SSE2005] C-2-1503-4651 GiC 10 56 56.46 -03 39 10.1           ~ 5 0
34 [SSE2005] B-4-0898-3159 GiC 10 56 56.54 -03 37 45.7           ~ 2 0
35 [VFK98] 3288 G 10 56 56.75 -03 37 48.3           ~ 1 0
36 [VFK98] 3356 G 10 56 56.79 -03 38 55.2           ~ 1 0
37 [VFK98] 3398 GiC 10 56 56.88 -03 37 38.7           ~ 1 0
38 [SSE2005] B-4-1732-3959 GiC 10 56 56.98 -03 37 37.7           ~ 2 0
39 [HPM2006] MS 1054.4-0321 3299 GiC 10 56 57.02 -03 38 50.9           ~ 4 0
40 [VFK98] 3524 GiC 10 56 57.06 -03 37 37.5           ~ 1 0
41 [DVG98] 9 GiC 10 56 57.14 -03 37 41.6           ~ 3 0
42 [SSE2005] C-3-3589-1192 GiC 10 56 57.20 -03 38 52.7           ~ 2 0
43 [SSE2005] C-3-3405-5449 GiC 10 56 57.31 -03 38 10.4           ~ 2 0
44 [VFK98] 3835 G 10 56 57.326 -03 35 59.01       22.88   ~ 2 0
45 [VFK98] 3585 G 10 56 57.41 -03 37 09.1           ~ 1 0
46 [DVG98] 10 GiC 10 56 57.47 -03 37 36.4           ~ 7 0
47 [VFK98] 3816 G 10 56 57.83 -03 38 33.0           ~ 1 0
48 [DVG98] 7 GiC 10 56 57.862 -03 37 47.77           ~ 4 0
49 [SSE2005] C-3-2444-0550 GiC 10 56 57.97 -03 38 58.9           ~ 2 0
50 [SSE2005] C-3-2394-0728 GiC 10 56 58.00 -03 38 57.1           ~ 2 0
51 [SSE2005] F-2-4796-2503 GiC 10 56 58.09 -03 36 12.9           ~ 2 0
52 [VFK98] 4031 GiC 10 56 58.32 -03 38 07.3           ~ 1 0
53 [SSE2005] B-4-2459-6164 GiC 10 56 58.53 -03 37 30.3           ~ 2 0
54 [VFK98] 4039 G 10 56 58.54 -03 37 58.3           ~ 1 0
55 [DVG98] 5 GiC 10 56 58.62 -03 37 49.3           ~ 8 0
56 [SSE2005] C-3-1105-4731 GiC 10 56 58.83 -03 38 17.3           ~ 2 0
57 [SSE2005] F-3-1332-3987 GiC 10 56 58.84 -03 34 55.0           ~ 2 0
58 [VFK98] 4165 G 10 56 58.85 -03 37 47.4           ~ 1 0
59 [FFL2006] 909 GiC 10 56 59.11 -03 37 06.4           ~ 4 0
60 [VFK98] 4390 GiC 10 56 59.18 -03 37 02.1           ~ 1 0
61 [SSE2005] E-2-6691-7740 GiC 10 56 59.26 -03 37 41.7           ~ 2 0
62 [VFK98] 4459 GiC 10 56 59.38 -03 36 51.6           ~ 1 0
63 [FFL2006] 1140 GiC 10 56 59.60 -03 36 30.7           ~ 3 0
64 [BVF2002] C1 GiC 10 56 59.66 -03 37 27.8           ~ 12 0
65 [VFK98] 4715 GiC 10 56 59.92 -03 37 31.9           ~ 1 0
66 [DVG98] 1 BiC 10 56 59.976 -03 37 35.85       19.86   ~ 18 0
67 [FFL2006] 695 GiC 10 57 00.09 -03 37 33.0           ~ 3 0
68 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 458 0
69 [SSE2005] C-4-5688-1852 GiC 10 57 00.30 -03 38 07.5           ~ 2 0
70 [SSE2005] E-2-6515-6100 GiC 10 57 00.34 -03 37 39.9           ~ 2 0
71 [VFK98] 4922 G 10 57 00.44 -03 37 23.7           ~ 1 0
72 [VFK98] 5111 G 10 57 00.99 -03 38 13.6           ~ 1 0
73 [SSE2005] E-2-6143-4838 GiC 10 57 01.17 -03 37 36.0           ~ 2 0
74 [VFK98] 5226 G 10 57 01.32 -03 37 05.1           ~ 1 0
75 [SSE2005] E-2-5231-4322 GiC 10 57 01.51 -03 37 26.9           ~ 2 0
76 [SSE2005] E-2-4074-4407 GiC 10 57 01.51 -03 37 15.6           ~ 2 0
77 [SSE2005] E-2-4234-4281 GiC 10 57 01.53 -03 37 16.9           ~ 2 0
78 [DVG98] 2 GiC 10 57 01.67 -03 37 41.8           ~ 5 0
79 [SSE2005] E-2-3790-4033 GiC 10 57 01.69 -03 37 12.5           ~ 3 0
80 [VFK98] 5325 G 10 57 01.70 -03 38 55.7           ~ 1 0
81 [SSE2005] E-2-5480-3843 GiC 10 57 01.83 -03 37 29.3           ~ 2 0
82 [VFK98] 5432 GiC 10 57 02.04 -03 37 33.9           ~ 1 0
83 [BVF2002] C2 rG 10 57 02.06 -03 37 31.7           ~ 4 0
84 [VFK98] 5347 GiC 10 57 02.38 -03 36 39.9           ~ 1 0
85 [VFK98] 5543 GiC 10 57 02.43 -03 36 40.7           ~ 1 0
86 [SSE2005] E-2-1589-2813 GiC 10 57 02.48 -03 36 50.4           ~ 2 0
87 [VFK98] 5545 G 10 57 02.51 -03 37 42.1           ~ 1 0
88 [SSE2005] E-2-5375-2675 GiC 10 57 02.60 -03 37 28.1           ~ 2 0
89 [BVF2002] C3 rG 10 57 02.60 -03 37 05.0           ~ 11 0
90 [SSE2005] E-2-2765-2633 GiC 10 57 02.62 -03 37 02.1           ~ 2 0
91 [SSE2005] E-2-1561-2215 GiC 10 57 02.88 -03 36 50.2           ~ 2 0
92 [SSE2005] E-2-1361-2038 GiC 10 57 02.99 -03 36 48.1           ~ 2 0
93 [VFK98] 5720 G 10 57 03.00 -03 35 55.3           ~ 1 0
94 [SSE2005] E-2-5037-2041 GiC 10 57 03.02 -03 37 24.7           ~ 2 0
95 [SSE2005] E-2-6574-1843 GiC 10 57 03.16 -03 37 39.8           ~ 2 0
96 [SSE2005] E-2-3170-1770 GiC 10 57 03.19 -03 37 06.0           ~ 2 0
97 [SSE2005] E-2-6077-1523 GiC 10 57 03.38 -03 37 34.9           ~ 2 0
98 Anon J105703-0337 G 10 57 03.47 -03 37 40.6           ~ 2 1
99 [VFK98] 5840 GiC 10 57 03.481 -03 37 12.86       21.94   ~ 3 0
100 [SSE2005] E-2-3451-1083 GiC 10 57 03.64 -03 37 08.7           ~ 2 0
101 [SSE2005] C-4-6940-7016 GiC 10 57 03.73 -03 37 55.2           ~ 2 0
102 [SSE2005] E-2-4536-0941 GiC 10 57 03.75 -03 37 19.6           ~ 2 0
103 [BVF2002] C5 GiC 10 57 03.87 -03 37 41.8           ~ 10 0
104 [HPM2006] MS 1054.4-0321 4101 GiC 10 57 03.876 -03 35 05.29       23.13   ~ 6 0
105 [FFL2006] 1200 GiC 10 57 03.92 -03 36 23.0           ~ 3 0
106 [VFK98] 5666 GiC 10 57 03.93 -03 39 00.1           ~ 1 0
107 [VFK98] 5992 GiC 10 57 03.95 -03 38 01.4           ~ 1 0
108 [BVF2002] C12 rG 10 57 04.05 -03 35 58.5           ~ 10 0
109 [VFK98] 5922 G 10 57 04.09 -03 35 53.7           ~ 1 0
110 [BVF2002] C6 rG 10 57 04.105 -03 37 07.56       22.96   ~ 5 0
111 [SSE2005] C-4-7471-7597 GiC 10 57 04.11 -03 37 50.2           ~ 2 0
112 [VFK98] 6048 G 10 57 04.28 -03 37 36.7           ~ 1 0
113 [VFK98] 6064 GiC 10 57 04.31 -03 38 06.0           ~ 1 0
114 [VFK98] 6036 GiC 10 57 04.31 -03 38 05.5           ~ 1 0
115 [SSE2005] D-3-7306-4693 GiC 10 57 04.31 -03 37 08.1           ~ 2 0
116 [SSE2005] D-3-6767-0836 GiC 10 57 04.56 -03 37 46.2           ~ 2 0
117 [SSE2005] E-4-3746-1072 GiC 10 57 04.57 -03 36 06.7           ~ 2 0
118 [SSE2005] D-3-6386-4388 GiC 10 57 04.79 -03 37 11.0           ~ 2 0
119 [SSE2005] D-3-6389-5426 GiC 10 57 04.79 -03 37 00.7           ~ 2 0
120 [FFL2006] 170 GiC 10 57 05.11 -03 38 49.7           ~ 2 0
121 [FFL2006] 581 GiC 10 57 05.13 -03 37 45.6           ~ 2 0
122 [VFK98] 6663 G 10 57 05.618 -03 36 54.07       24.51   ~ 2 0
123 [SSE2005] D-2-2531-4942 GiC 10 57 05.75 -03 38 10.2           ~ 2 0
124 [FFL2006] 1357 GiC 10 57 05.77 -03 36 04.5           ~ 3 0
125 [FFL2006] 211 GiC 10 57 06.02 -03 38 36.1           ~ 4 0
126 [SSE2005] D-2-3575-4453 GiC 10 57 06.09 -03 38 20.5           ~ 2 0
127 [VFK98] 6829 G 10 57 06.16 -03 36 04.2           ~ 1 0
128 [SSE2005] D-2-3339-4299 GiC 10 57 06.18 -03 38 18.2           ~ 2 0
129 [VFK98] 6812 bCG 10 57 06.514 -03 36 38.98       23.85   ~ 2 0
130 [FFL2006] 1272 G 10 57 06.78 -03 36 18.1           ~ 2 0
131 [VFK98] 7076 G 10 57 07.050 -03 36 30.89       24.38   ~ 2 0
132 [CWB2011] WLTV J105707.27-033538.6 bCG 10 57 07.269 -03 35 38.60       23.17   ~ 8 0
133 [VFK98] 7228 G 10 57 07.34 -03 38 46.2           ~ 1 0
134 [VFK98] 8001 G 10 57 07.54 -03 36 26.7           ~ 1 0
135 [SSE2005] D-3-1594-1733 GiC 10 57 08.00 -03 37 37.0           ~ 2 0
136 [SSE2005] E-4-7609-6346 GiC 10 57 08.07 -03 35 28.4           ~ 2 0
137 [VFK98] 7746 G 10 57 09.03 -03 35 45.2           ~ 1 0
138 [VFK98] 7603 G 10 57 09.46 -03 36 56.8           ~ 1 0
139 [FFL2006] 725 GiC 10 57 11.74 -03 37 30.6           ~ 3 0
140 [FFL2006] 791 GiC 10 57 11.80 -03 37 24.9           ~ 2 0
141 [SSE2005] D-4-6558-5379 GiC 10 57 12.11 -03 36 48.9           ~ 4 1
142 [VFK98] 7210 G 10 57 12.38 -03 36 41.6           ~ 1 0
143 [VFK98] 7163 G 10 57 12.49 -03 37 23.8           ~ 1 0
144 [VFK98] 7186 G 10 57 13.66 -03 37 12.1           ~ 1 0
145 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2

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