2003ApJ...586..765Y

Query : 2003ApJ...586..765Y

2003ApJ...586..765Y - Astrophys. J., 586, 765-779 (2003/April-1)

Hubble Space Telescope WFPC2 morphologies of K-selected extremely red galaxies.

YAN L. and THOMPSON D.

Abstract (from CDS):

We selected 115 extremely red objects (EROs) from deep Hubble Space Telescope (HST) WFPC2 archive data combined with ground-based K-band images, with (F814W-Ks) ≥ 4, K-band signal-to-noise ratio ≥5, and a median limiting Ksmagnitude of ∼18.7, over a corresponding area of 228 arcmin2, for a morphological study of the ERO galaxy population. The survey covered a total of ∼409 arcmin2 over 77 separate WFPC2 fields. This is the first complete sample of bright EROs with high-resolution HST morphologies. From a visual morphological classification, we find that 30%±5% of our (F814W-Ks) ≥ 4 selected sample have morphologies consistent with a pure bulge or bulge-dominated galaxy (equivalent to E/S0), while disks comprise 64%±7% of the sample. Only 6% of the EROs remained unclassifiable. Mergers or strongly interacting systems, which includes sources from both classes, make up 17%±4% of the full sample. The quantitative Medium Deep Survey profile fitting is consistent with these results. These results highlight the complex nature of optical/near-IR color selected EROs. The dominant component of our sample is composed of disks, not spheroids or strongly interacting systems like HR 10. Using Bruzual & Charlot spectral energy distribution models, we investigated population differences in EROs selected by their (I-K) versus (R-K) colors and found that I-band based surveys preferentially select systems with prolonged star formation. Real differences in the surface densities of EROs in R-band and I-band based survey may reflect this color selection effect, complicating the comparisons between and interpretations on the nature of the ERO population. We conclude that only a small fraction of EROs at z∼1-2 could be passively evolving elliptical galaxies formed at high redshift through a ``monolithic collapse'' mechanism. For the majority of EROs, even if most of their stellar mass is already in place at z∼1, interaction with the environment and accretion of gas still play important roles in their continuing evolution.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Fundamental Parameters - Galaxies: High-Redshift - Galaxies: Spiral

VizieR on-line data: <Available at CDS (J/ApJ/586/765): table1.dat table2.dat>

Nomenclature: Table 2: [YT2003] NNN (Nos 1-115) = [YT2003] aaaNN-NNN, [YT2003] aNaNN-NNN, [YT2003] aNaaN-NNN, [YT2003] aNNNN-NNN, [YT2003] aaNNN-NNN, N=107.

CDS comments: paragr. 2.8: Cl 1603+4304 is a misprint for ClG J1604+4304.

Simbad objects: 119

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Number of rows : 119
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 [GSI2003] 091 G 00 18 22.2928 +16 20 54.975         23.9 ~ 2 0
2 [YT2003] ufg00-070 G 00 18 29.1165 +16 20 56.226         23.5 ~ 2 0
3 [YT2003] ufg00-121 G 00 18 30.1373 +16 20 39.685         22.56 ~ 2 0
4 [VV2006] J001831.2+162044 QSO 00 18 31.374 +16 20 42.00     17.68   21.84 ~ 16 3
5 [YT2003] ufg00-083 G 00 18 31.5131 +16 20 40.797         22.65 ~ 2 0
6 [GSI2003] 108 G 00 20 11.5736 +28 36 51.713         22.36 ~ 2 0
7 [YT2003] udh00-057 G 00 45 02.1324 +10 34 42.958         22.63 ~ 2 0
8 [GSI2003] 083 G 00 53 35.3406 +12 49 29.408         22.43 ~ 2 0
9 [YT2003] ueh02-063 G 00 53 35.6556 +12 49 50.997         22.25 ~ 2 0
10 [GSI2003] 082 G 00 53 39.9393 +12 49 34.931         23 ~ 2 0
11 [YT2003] ujh01-118 G 01 09 03.3016 +35 35 36.262         23.33 ~ 1 0
12 [YT2003] ubi02-055 G 01 09 56.7526 -02 26 18.601         22.52 ~ 2 0
13 [YT2003] ubi02-062 G 01 09 57.0151 -02 27 34.353         23.17 ~ 2 0
14 [YT2003] ubi02-013 G 01 10 00.4624 -02 27 37.273         21.22 ~ 1 0
15 [YT2003] uci10-013 G 01 24 40.8825 +03 50 45.704         21.74 ~ 1 0
16 [YT2003] uci10-051 G 01 24 45.9369 +03 51 19.209         22.64 ~ 1 0
17 [YT2003] ubm00-093 G 02 01 50.2325 -11 41 14.232         22.59 ~ 1 0
18 [GSI2003] 096 G 02 07 01.3073 +15 26 18.414         22.75 ~ 2 0
19 [GSI2003] 099 G 02 07 05.7003 +15 24 55.156         22.44 ~ 2 0
20 [YT2003] ufj00-047 G 02 07 07.6300 +15 24 43.365         22.43 ~ 1 0
21 [YT2003] u2c48-049 G 02 39 56.0682 -01 37 07.046         21.58 ~ 1 0
22 [YT2003] u2c48-078 G 02 39 59.2569 -01 37 21.172         21.9 ~ 1 0
23 [YT2003] u2c48-114 G 02 40 00.5682 -01 37 07.237         22.67 ~ 1 0
24 [YT2003] udm10-100 G 02 42 52.0311 -00 05 08.190         23.18 ~ 1 0
25 [YT2003] ulj00-053 G 02 43 50.2612 +37 17 53.956         22.83 ~ 1 0
26 [YT2003] ulj00-219 G 02 43 50.3033 +37 17 23.852         24.84 ~ 1 0
27 [YT2003] ulj00-114 G 02 43 50.8212 +37 17 14.400         23.48 ~ 1 0
28 [LHF2004] CFRS 7 G 03 02 47.3464 +00 13 08.655         21.67 ~ 5 0
29 [GSI2003] 061 G 03 38 37.9233 -00 13 03.154         22.63 ~ 2 0
30 [YT2003] 30 G 03 38 38.5961 -00 12 42.727         21.84 ~ 1 0
31 [GSI2003] 050 G 03 41 09.5269 +00 00 18.660         22.33 ~ 2 0
32 [YT2003] uim03-102 G 03 55 31.1522 +09 44 47.822         22.64 ~ 2 0
33 [YT2003] uim03-089 G 03 55 32.3447 +09 44 49.683         22.59 ~ 2 0
34 [YT2003] uim03-100 G 03 55 32.8000 +09 44 47.262         22.85 ~ 2 0
35 [YT2003] uim03-075 G 03 55 35.4355 +09 42 43.514         22.57 ~ 2 0
36 4C 05.19 QSO 04 14 37.76734974 +05 34 42.3295956   24.100 23.800 21.270   ~ 371 2
37 [YT2003] u2fl1-038 G 04 14 41.8303 +05 35 47.750         22.34 ~ 1 0
38 [YT2003] u2fl1-044 G 04 14 43.0621 +05 34 39.376         22.49 ~ 1 0
39 [YT2003] uho00-069 G 04 16 55.7078 -05 59 36.262         23.26 ~ 1 0
40 [YT2003] uko01-023 G 04 56 43.3215 +03 53 33.905         22.85 ~ 1 0
41 [YT2003] uko01-043 G 04 56 49.0888 +03 52 37.939         22.31 ~ 1 0
42 [YT2003] uqk11-019 G 07 24 41.3649 +60 29 37.564         21.15 ~ 1 0
43 [YT2003] uqk11-077 G 07 24 43.8276 +60 31 37.111         22.6 ~ 1 0
44 [YT2003] uqk11-048 G 07 24 46.6626 +60 30 35.571         22.11 ~ 1 0
45 [YT2003] uqj10-027 G 07 27 20.6173 +69 05 46.966         21.78 ~ 1 0
46 [GSI2003] 166 G 07 27 25.4097 +69 06 17.115         23.07 ~ 2 0
47 [YT2003] 46 G 07 27 42.9072 +69 06 50.422     20.64   23.73 ~ 3 0
48 [YT2003] uqk02-042 G 07 41 25.8953 +65 06 02.339         22.56 ~ 1 0
49 [YT2003] uqk02-064 G 07 41 31.6545 +65 06 09.883         22.91 ~ 1 0
50 [YT2003] uqk00-133 G 07 42 37.6428 +65 06 32.076         23.76 ~ 1 0
51 [GSI2003] 174 G 07 42 39.3423 +49 44 31.800         22.91 ~ 2 0
52 [YT2003] uqk00-299 G 07 42 44.2458 +65 05 49.770         23.13 ~ 1 0
53 [YT2003] uqk00-096 G 07 42 44.6454 +65 05 49.863         22.83 ~ 1 0
54 [YT2003] uqk00-066 G 07 42 49.2476 +65 05 06.184         22.98 ~ 1 0
55 [YT2003] uqk04-039 G 07 42 49.6767 +65 15 43.206         22.12 ~ 1 0
56 [YT2003] 55 G 07 42 49.7006 +65 06 08.519         22.82 ~ 1 0
57 [YT2003] uqk00-043 G 07 42 51.0075 +65 06 23.044         23.42 ~ 1 0
58 [YT2003] u2gk1-190 G 08 30 48.3166 +65 51 12.636         23.21 ~ 1 0
59 [YT2003] uvm01-194 G 09 39 31.7625 +41 33 09.070         23.42 ~ 1 0
60 [YT2003] u2c47-165 G 09 42 57.2880 +46 56 01.780         23.54 ~ 1 0
61 [YT2003] u2c47-085 G 09 43 03.5351 +46 55 50.805         21.97 ~ 1 0
62 [YT2003] u2c47-134 G 09 43 08.0085 +46 56 21.209         22.97 ~ 1 0
63 [GSI2003] 219 G 10 02 26.2962 +28 50 00.903         22.82 ~ 2 0
64 [YT2003] uxs10-035 G 10 47 13.2802 +13 56 37.675         22.36 ~ 1 0
65 [YT2003] 64 G 11 16 28.0883 +18 05 27.717         22.02 ~ 1 0
66 [YT2003] u3063-511 G 11 40 29.4030 +66 07 58.555         24.91 ~ 1 0
67 [YT2003] uzk03-086 G 12 10 31.1231 +39 28 46.905         22.26 ~ 1 0
68 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1
69 [YT2003] u2b15-029 G 13 33 35.2177 +16 50 11.271         22.4 ~ 1 0
70 [YT2003] u2b15-046 G 13 33 37.1951 +16 50 00.346         22.33 ~ 1 0
71 [YT2003] u2uj2-164 G 13 59 48.8443 +62 31 47.959         22.33 ~ 1 0
72 [YT2003] u2uj7-082 G 13 59 54.7421 +62 28 35.463         22.34 ~ 1 0
73 [YT2003] u2uj7-171 G 14 00 07.8212 +62 28 51.163         23.18 ~ 1 0
74 [YT2003] 72 G 15 19 39.4365 +23 52 37.885         22.71 ~ 1 0
75 [YT2003] ux400-055 G 15 19 40.7129 +23 52 39.488         22.41 ~ 1 0
76 [YT2003] u2845-097 G 16 04 15.4230 +43 04 15.840         23.31 ~ 1 0
77 [YT2003] u2845-077 G 16 04 17.4446 +43 03 47.643         23.34 ~ 1 0
78 [YT2003] u2845-043 G 16 04 17.7243 +43 03 24.653         22.74 ~ 1 0
79 [YT2003] u2845-089 G 16 04 21.3952 +43 04 35.810         22.89 ~ 1 0
80 ClG 1603+4313 ClG 16 04 23.7 +43 04 52           ~ 134 1
81 [YT2003] u2845-050 G 16 04 25.2398 +43 04 12.562         22.09 ~ 2 0
82 [YT2003] uuc04-095 G 16 24 12.4485 +48 10 14.906         22.16 ~ 1 0
83 [YT2003] uuc04-044 G 16 24 15.3071 +48 09 37.509         22.03 ~ 1 0
84 [CSB2005] 6 G 16 45 02.42 +46 26 27.0           ~ 136 0
85 [YT2003] 81 G 17 12 20.6910 +33 35 28.969         22.13 ~ 1 0
86 [YT2003] usc12-072 G 17 22 37.0496 +50 13 35.231         22.07 ~ 1 0
87 [YT2003] usc12-045 G 17 22 37.6296 +50 13 00.220         21.93 ~ 1 0
88 [YT2003] usc10-056 G 17 23 00.3707 +50 10 54.617         22.24 ~ 1 0
89 [YT2003] 85 G 17 55 22.4072 +18 18 47.134         22.52 ~ 2 0
90 [YT2003] uo501-258 G 17 55 25.4940 +18 17 09.218         22.63 ~ 1 0
91 [YT2003] uo501-207 G 17 55 26.3237 +18 17 15.018         23.03 ~ 1 0
92 [YT2003] 88 G 17 55 27.6343 +18 18 55.559         22.06 ~ 2 0
93 [YT2003] 89 G 17 55 30.3430 +18 18 30.982         23.43 ~ 1 0
94 [YT2003] uqc01-065 G 18 07 04.9266 +45 44 13.350         22.66 ~ 1 0
95 [YT2003] uqc01-097 G 18 07 06.4575 +45 44 34.643         22.66 ~ 1 0
96 [YT2003] uqc00-071 G 18 07 35.4057 +46 00 02.849         22.41 ~ 1 0
97 [YT2003] uqc00-111 G 18 07 43.7618 +45 59 45.389         22.86 ~ 1 0
98 [YT2003] u2fq1-130 G 21 53 30.6614 +17 41 45.643         21.96 ~ 2 0
99 [YT2003] u2fq1-166 G 21 53 32.4989 +17 42 53.920         23 ~ 1 0
100 [VV2006] J215332.5+174129 QSO 21 53 32.5 +17 41 29         23.64 ~ 4 0
101 [YT2003] u2fq1-273 G 21 53 33.0947 +17 42 52.077         22.58 ~ 2 0
102 [YT2003] u2fq1-158 G 21 53 33.3712 +17 42 49.533         22.41 ~ 1 0
103 [YT2003] u2fq1-128 QSO 21 53 33.8 +17 41 16         21.47 ~ 3 0
104 [YT2003] u2fq1-184 G 21 53 33.8420 +17 43 01.576         22.72 ~ 1 0
105 [YT2003] u2fq1-095 G 21 53 34.0945 +17 42 40.723         21.79 ~ 1 0
106 [YT2003] u2fq1-416 G 21 53 34.5140 +17 43 05.921         23.54 ~ 1 0
107 [YT2003] u2fq1-107 G 21 53 38.5288 +17 42 18.217         21.41 ~ 1 0
108 [YT2003] u2fq1-085 G 21 53 38.6836 +17 41 07.398         21.33 ~ 2 0
109 [YT2003] u2fq1-115 G 21 53 38.8887 +17 42 25.657         22.17 ~ 2 0
110 [YT2003] u2fq1-099 G 21 53 39.1231 +17 42 25.960         21.68 ~ 1 0
111 [YT2003] u2fq1-224 G 21 53 39.7393 +17 41 12.323         23.2 ~ 1 0
112 GDDS SA22-0948 G 22 17 35.4817 +00 17 34.004     25.22   23.45 ~ 5 0
113 [DBE2005] SSA22 2467 G 22 17 35.8459 +00 13 51.524   26.2 24.79   22.12 ~ 10 0
114 [YT2003] u2h91-011 G 22 17 37.6791 +00 15 57.024   25.6     21.39 ~ 4 0
115 [YT2003] 111 G 22 47 09.9607 -02 05 57.959         21.92 ~ 3 0
116 [YT2003] uec00-057 G 23 04 24.4209 +03 04 10.043         22.34 ~ 1 0
117 [YT2003] uec00-053 G 23 04 29.4158 +03 03 31.358         22.11 ~ 2 0
118 [YT2003] uec00-080 G 23 04 30.4987 +03 04 43.728         22.27 ~ 1 0
119 [YT2003] uec00-047 G 23 04 31.2224 +03 04 35.336         22.19 ~ 2 0

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