2011ApJ...729...48B

Query : 2011ApJ...729...48B

2011ApJ...729...48B - Astrophys. J., 729, 48 (2011/March-1)

Differential morphology between rest-frame optical and ultraviolet emission from 1.5 < z < 3 star-forming galaxies.

BOND N.A., GAWISER E. and KOEKEMOER A.M.

Abstract (from CDS):

We present the results of a comparative study of the rest-frame optical and rest-frame ultraviolet morphological properties of 117 star-forming galaxies (SFGs), including BX, BzK, and Lyman break galaxies with B < 24.5, and 15 passive galaxies in the region covered by the Wide Field Camera 3 Early Release Science program. Using the internal color dispersion (ICD) diagnostic, we find that the morphological differences between the rest-frame optical and rest-frame UV light distributions in 1.4 SFGs < z < 2.9 SFGs are typically small (ICD ∼0.02). However, the majority are non-zero (56% at >3σ) and larger than we find in passive galaxies at 1.4 < z < 2, for which the weighted mean ICD is 0.013. The lack of morphological variation between individual rest-frame ultraviolet bandpasses in z ∼ 3.2 galaxies argues against large ICDs being caused by non-uniform dust distributions. Furthermore, the absence of a correlation between ICD and galaxy UV-optical color suggests that the non-zero ICDs in SFGs are produced by spatially distinct stellar populations with different ages. The SFGs with the largest ICDs (≳0.05) generally have complex morphologies that are both extended and asymmetric, suggesting that they are mergers-in-progress or very large galaxies in the act of formation. We also find a correlation between half-light radius and ICD, a fact that is not reflected by the difference in half-light radii between bandpasses. In general, we find that it is better to use diagnostics like the ICD to measure the morphological properties of the difference image than it is to measure the difference in morphological properties between bandpasses.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - galaxies: formation - galaxies: high-redshift - galaxies: structure

Nomenclature: Table 2, Fig. 6: [BGK2011] PNN (Nos P1-15).

Simbad objects: 135

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Number of rows : 135
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 GOODS J033201.12-274404.8 G 03 32 01.100 -27 44 04.86   23.913 24.37 24.347   ~ 6 0
2 GOODS J033201.30-274244.0 G 03 32 01.319 -27 42 43.83   24.416 24.50 24.028   ~ 6 0
3 GOODS J033201.51-274422.6 G 03 32 01.504 -27 44 22.57   25.855 25.39 25.42 25.002 ~ 7 0
4 GOODS J033202.07-274513.9 G 03 32 02.061 -27 45 13.89   24.386 23.83 23.843   ~ 4 0
5 GOODS J033202.17-274230.4 EmG 03 32 02.162 -27 42 30.42   26.52 25.46 24.98   ~ 7 0
6 GOODS J033202.25-274410.3 G 03 32 02.263 -27 44 10.50   25.195 24.89 24.669   ~ 8 0
7 GOODS J033202.50-274250.7 G 03 32 02.502 -27 42 50.68   24.3872   24.019 23.7922 ~ 12 0
8 CANDELS GDS F160W J033203.24-274518.8 EmG 03 32 03.243 -27 45 18.82   25.210 24.39 24.610   ~ 44 0
9 GOODS J033203.32-274526.6 G 03 32 03.319 -27 45 26.45   24.364 24.69 24.566   ~ 8 0
10 GOODS J033203.33-274524.6 EmG 03 32 03.343 -27 45 24.54   23.9672   23.820 23.9555 ~ 16 0
11 GOODS J033203.51-274245.2 G 03 32 03.507 -27 42 45.15   24.659 24.55 24.716   ~ 8 0
12 [AZW2014] 23 EmG 03 32 04.37674 -27 43 31.1714 24.00 23.489 23.22 23.18 23.27 ~ 11 0
13 GOODS J033205.12-274501.5 G 03 32 05.119 -27 45 01.54   24.682 24.06 24.154   ~ 8 0
14 GOODS J033205.52-274511.8 G 03 32 05.518 -27 45 11.71   24.736 24.50 24.621 23.657 ~ 8 0
15 GOODS J033207.50-274541.2 G 03 32 07.504 -27 45 41.32   24.448 25.04 24.157   ~ 6 0
16 GOODS J033207.57-274226.2 G 03 32 07.57334 -27 42 26.2393   23.4237   23.393 23.2118 ~ 5 0
17 GOODS J033208.09-274218.4 G 03 32 08.086 -27 42 18.23   23.750 23.67 23.589   ~ 9 0
18 [AZW2014] 24 EmG 03 32 08.175 -27 42 40.56 25.10 24.44 24.24 24.06 23.78 ~ 13 0
19 GOODS J033208.57-274350.5 G 03 32 08.560 -27 43 50.38   25.337 25.22 25.244   ~ 4 0
20 GOODS J033209.09-274341.0 G 03 32 09.090 -27 43 41.03   25.6899   25.89 25.7563 ~ 7 0
21 GOODS J033209.15-274557.0 G 03 32 09.145 -27 45 56.98   24.880 24.47 24.274   ~ 8 0
22 GOODS J033209.46-274558.4 G 03 32 09.454 -27 45 58.43   25.0578   24.444 24.5279 ~ 10 0
23 GOODS J033209.75-274544.9 G 03 32 09.752 -27 45 44.88   25.56 25.64 25.65 24.813 ~ 7 0
24 GNS 5909 AGN 03 32 09.790 -27 43 08.58   23.8873   22.871 23.2701 ~ 21 0
25 GOODS J033209.88-274429.6 G 03 32 09.878 -27 44 29.50   25.76 25.61 25.14   ~ 8 0
26 EIS-DEEP CDFS-1 Ks 1 130 EmG 03 32 10.189 -27 44 16.29   24.032 23.76 23.799   ~ 16 0
27 GOODS J033210.38-274554.4 EmG 03 32 10.392 -27 45 54.40   24.892 24.43 24.510 24.057 ~ 10 0
28 GNS 6947 G 03 32 11.399 -27 41 31.29   25.18 25.12     ~ 5 0
29 EIS-DEEP CDFS-1 Ks 1 145 G 03 32 11.483 -27 44 21.82   24.0720 23.6518 23.785 23.6134 ~ 18 0
30 EIS-DEEP CDFS-1 J 1 323 G 03 32 11.719 -27 44 44.26   23.541 23.62 23.469   ~ 10 0
31 GNS 6961 G 03 32 12.571 -27 41 37.40   25.88 24.90 24.99   ~ 6 0
32 GOODS J033212.68-274141.8 G 03 32 12.67939 -27 41 41.7988   24.999   25.161   ~ 4 0
33 GOODS J033212.94-274451.5 G 03 32 12.931 -27 44 51.50   26.00 24.92 24.970 24.7395 ~ 11 0
34 GOODS J033214.06-274303.9 G 03 32 14.070 -27 43 03.75   26.22 24.87 24.304   ~ 9 0
35 GNS 5158 EmG 03 32 14.141 -27 41 52.16   24.9641   24.197 24.1013 ~ 13 0
36 GOODS J033214.36-274233.1 G 03 32 14.36045 -27 42 33.0995   25.20   25.44   ~ 6 0
37 GNS 5185 EmG 03 32 15.025 -27 42 09.07   24.034 24.09 23.716   ~ 10 0
38 GOODS J033215.59-274357.8 G 03 32 15.602 -27 43 57.68   24.476 24.55 24.485   ~ 6 0
39 GNS 5048 G 03 32 15.614 -27 41 13.43   25.38 25.07 25.191   ~ 8 0
40 GNS 5068 G 03 32 15.631 -27 41 23.46   24.547 24.46 24.469   ~ 7 0
41 GOODS J033216.03-274227.8 G 03 32 16.028 -27 42 27.77   23.758 24.72 23.565   ~ 7 0
42 GOODS J033216.16-274215.6 G 03 32 16.189 -27 42 15.50   25.67 25.61 25.39   ~ 7 0
43 GOODS J033216.39-274341.1 G 03 32 16.394 -27 43 40.74   24.763 25.79 24.488   ~ 6 0
44 GOODS J033216.49-274353.6 G 03 32 16.490 -27 43 53.50   24.832 25.17 24.78   ~ 7 0
45 GOODS J033217.41-274440.0 G 03 32 17.413 -27 44 39.99   24.6602   24.586 24.7561 ~ 9 0
46 GNS 5099 G 03 32 17.477 -27 41 36.09   24.9408   24.719 24.4252 ~ 9 0
47 GOODS J033217.70-274357.9 G 03 32 17.70149 -27 43 57.9320   25.352   25.19   ~ 3 0
48 GOODS J033217.77-274200.5 EmG 03 32 17.778 -27 42 00.48   25.356 24.92 25.089   ~ 7 0
49 GMASS 2090 EmG 03 32 18.723 -27 43 51.72   24.703 24.17 24.270   ~ 18 0
50 GMASS 1486 G 03 32 18.731 -27 45 14.41   23.7864 23.54 23.678 23.4319 ~ 12 0
51 GOODS J033218.91-274137.5 G 03 32 18.912 -27 41 37.50   25.1869   25.166 24.9015 ~ 10 0
52 GOODS J033219.02-274128.8 EmG 03 32 19.029 -27 41 28.95   24.209 24.01 23.802   ~ 11 0
53 GOODS J033219.07-274439.1 G 03 32 19.074 -27 44 39.07   24.9416   24.362 24.3190 ~ 9 0
54 EIS-DEEP CDFS-1 J 1 349 G 03 32 19.253 -27 44 38.84   22.880 22.431 22.278 22.18 ~ 14 0
55 GOODS J033220.15-274453.8 EmG 03 32 20.166 -27 44 53.65   25.56 25.04 24.88   ~ 8 0
56 GOODS J033220.60-274112.4 G 03 32 20.595 -27 41 12.30   23.779 23.72 23.757   ~ 10 0
57 GOODS J033220.65-274439.1 EmG 03 32 20.65310 -27 44 39.0955   24.8950   24.979 24.6715 ~ 6 0
58 [BMP2010] 1204 G 03 32 20.674 -27 43 44.69   23.170 25.58 25.26   ~ 3 0
59 GOODS J033220.78-274344.2 G 03 32 20.78201 -27 43 44.1955   23.481   25.55   ~ 4 0
60 GNS 5306 G 03 32 21.49 -27 42 41.9   25.98 26.20     ~ 14 0
61 GOODS J033221.73-274255.2 G 03 32 21.727 -27 42 55.09   24.533 24.34 24.410   ~ 9 0
62 GOODS J033221.94-274338.8 EmG 03 32 21.944 -27 43 38.83   25.7359   24.753 25.3767 ~ 12 0
63 GOODS J033222.46-274438.3 EmG 03 32 22.473 -27 44 38.44   26.84 25.23 25.12 24.584 ~ 13 0
64 GOODS J033222.89-274115.2 EmG 03 32 22.900 -27 41 15.16   26.00 25.15 25.18   ~ 14 0
65 GOODS J033223.72-274111.8 G 03 32 23.726 -27 41 11.60   24.899 24.98 25.02   ~ 8 0
66 GOODS J033223.79-274421.2 G 03 32 23.788 -27 44 21.16   24.9367   24.68 24.6321 ~ 7 0
67 CANDELS UDS F160W J033223.88-274222.2 EmG 03 32 23.882 -27 42 22.18           ~ 11 0
68 GOODS J033224.34-274036.8 G 03 32 24.374 -27 40 36.93   23.660 23.92 23.446   ~ 7 0
69 EIS-DEEP CDFS-1 J 1 196 G 03 32 24.649 -27 44 07.66   23.232 23.52 23.226   ~ 11 0
70 GOODS J033224.74-274429.1 G 03 32 24.745 -27 44 29.39   25.07 24.56 25.377   ~ 7 0
71 GOODS J033224.76-274216.0 G 03 32 24.75888 -27 42 15.9768           ~ 2 0
72 GNS 4424 G 03 32 24.892 -27 42 50.73   25.4408   24.97 24.8401 ~ 14 0
73 GOODS J033224.99-274345.8 G 03 32 24.974 -27 43 45.31   23.712 25.15 24.496   ~ 7 0
74 ACS-GC 90107861 AGN 03 32 25.095 -27 42 19.53   24.3342 23.8948 22.9388 22.1407 ~ 22 0
75 GMASS 2361 G 03 32 26.043 -27 42 36.54   27.7658     25.1306 ~ 24 0
76 GOODS J033226.12-274418.9 G 03 32 26.138 -27 44 18.89   23.987 24.07 24.074 23.179 ~ 11 0
77 GOODS J033226.54-274454.2 G 03 32 26.539 -27 44 54.15   24.524 24.55 24.489   ~ 5 0
78 GOODS J033226.97-274442.2 G 03 32 26.970 -27 44 42.06   25.91 24.88 24.596 23.952 ~ 5 0
79 GOODS-MUSIC 17060 G 03 32 26.988 -27 41 33.45   24.1139 23.5158 23.609 23.6253 ~ 15 0
80 GOODS J033227.20-274151.8 G 03 32 27.200 -27 41 51.77   25.6820   24.791 24.7824 ~ 9 0
81 GOODS J033227.65-274206.5 G 03 32 27.656 -27 42 06.56   24.088 24.72 24.455   ~ 9 0
82 GMASS 2111 G 03 32 27.936 -27 42 45.69   27.98     24.9589 ~ 20 0
83 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
84 EIS-DEEP CDFS-2 Ks 1 507 G 03 32 28.811 -27 44 30.48     27.88     ~ 11 0
85 GOODS J033228.95-274411.8 G 03 32 28.948 -27 44 11.68   22.038 24.66 24.081   ~ 12 0
86 GOODS J033229.18-274022.5 G 03 32 29.18105 -27 40 22.5217   26.09   24.976   ~ 7 0
87 GOODS J033229.63-274057.9 G 03 32 29.632 -27 40 57.88   24.966 24.39 24.119   ~ 7 0
88 GOODS J033229.92-274258.9 G 03 32 29.92310 -27 42 58.9334   22.761   25.161   ~ 3 0
89 GMASS 2286 G 03 32 29.992 -27 43 22.65   28.00 26.72 25.572 22.313 ~ 21 0
90 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 862 0
91 GOODS J033230.42-274320.9 G 03 32 30.416 -27 43 20.80   27.42 27.43     ~ 7 0
92 GOODS-MUSIC 15770 G 03 32 30.581 -27 42 43.46     27.29     ~ 12 1
93 GOODS-MUSIC 15179 G 03 32 30.705 -27 43 08.01   26.74 26.70     ~ 11 0
94 ZFOURGE CDFS 25708 G 03 32 30.802 -27 43 06.31   27.84 26.84     ~ 6 0
95 CANDELS UDS F160W J033230.86-274327.5 G 03 32 30.864 -27 43 27.50   26.55 27.57     ~ 9 0
96 GOODS J033231.28-274145.3 G 03 32 31.277 -27 41 45.28   25.262 24.88 24.967   ~ 6 0
97 GOODS J033231.32-274234.5 G 03 32 31.331 -27 42 34.47   25.196 25.02 25.046 22.788 ~ 11 0
98 GOODS J033231.61-274008.5 G 03 32 31.613 -27 40 08.48   24.7835   23.979 23.8516 ~ 8 0
99 GOODS-MUSIC 17191 EmG 03 32 32.294 -27 41 26.37   23.7696 23.430 23.515 23.3678 ~ 25 0
100 GOODS J033233.36-274255.1 G 03 32 33.361 -27 42 55.05   22.527 24.71 24.428   ~ 9 0
101 GOODS J033234.07-274328.4 EmG 03 32 34.084 -27 43 28.45   23.114 23.49 23.086   ~ 11 0
102 GOODS J033234.40-273954.7 G 03 32 34.390 -27 39 54.63   23.488 23.64 23.408   ~ 9 0
103 GOODS J033234.91-274152.9 G 03 32 34.904 -27 41 52.82   24.398 24.22 24.382   ~ 14 0
104 GOODS J033234.96-274107.0 AG? 03 32 34.950 -27 41 06.93   25.1608 24.30 24.470 24.3127 ~ 12 0
105 GOODS J033235.03-274237.9 G 03 32 35.024 -27 42 37.85   24.845 24.77 24.943 24.398 ~ 8 0
106 GOODS J033235.51-274003.6 G 03 32 35.510 -27 40 03.50   25.231 25.00 25.371 23.750 ~ 7 0
107 GMASS 2543 AGN 03 32 35.904 -27 42 40.96   27.9 26.79   25.7014 ~ 22 0
108 GOODS J033235.96-274150.0 G 03 32 35.956 -27 41 49.97   26.1070   24.214 24.1538 ~ 21 0
109 GMASS 2148 AGN 03 32 36.283 -27 42 49.41   25.899 26.24 25.81 24.4278 ~ 35 0
110 GMASS 2196 G 03 32 36.656 -27 42 58.51   27.82     24.8489 ~ 20 0
111 GOODS J033237.10-274041.5 G 03 32 37.104 -27 40 41.33   22.628 24.99 24.886 24.243 ~ 6 0
112 GOODS J033237.27-274309.5 G 03 32 37.27238 -27 43 09.5257   25.026   25.251   ~ 4 0
113 GOODS J033237.65-273945.7 G 03 32 37.649 -27 39 45.72   25.0237   24.524 24.0950 ~ 6 0
114 GOODS J033237.79-274232.5 QSO 03 32 37.79179 -27 42 32.4709   25.0203   24.009 23.8986 ~ 15 0
115 GOODS J033237.80-274126.1 G 03 32 37.810 -27 41 25.70   20.652 24.03 22.772   ~ 7 0
116 GOODS J033237.95-274025.8 G 03 32 37.94748 -27 40 25.7538   23.435   23.479   ~ 5 0
117 GOODS J033238.23-274005.7 G 03 32 38.224 -27 40 05.65   24.853 24.63 24.783   ~ 9 0
118 GOODS J033238.33-273947.9 EmG 03 32 38.319 -27 39 47.80 25.37 24.41 24.57 24.22 24.18 ~ 10 0
119 GEMS J033238.58-273946.0 G 03 32 38.585 -27 39 45.91   24.085 24.18 24.105 22.881 ~ 10 0
120 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1900 0
121 GOODS J033239.17-274009.8 G 03 32 39.156 -27 40 09.70   24.899 24.53 24.757   ~ 7 0
122 GNS 8174 AGN 03 32 39.269 -27 42 19.18   21.024 23.386 20.897   ~ 18 0
123 GMASS 2219 EmG 03 32 39.675 -27 43 06.72   23.5059   23.092 23.1329 ~ 18 0
124 GOODS J033239.76-273956.8 G 03 32 39.755 -27 39 56.67   25.95 25.07 24.939 24.838 ~ 8 0
125 GNS 8207 G 03 32 40.320 -27 42 40.89   24.95 24.17     ~ 10 0
126 GOODS J033240.50-274125.9 G 03 32 40.497 -27 41 25.78   25.73 25.43 25.08   ~ 6 0
127 GOODS J033240.64-274123.9 G 03 32 40.63591 -27 41 23.9370   25.085   25.08   ~ 4 0
128 GOODS J033240.67-274050.7 G 03 32 40.665 -27 40 50.57   24.132 24.84 24.573 24.244 ~ 6 0
129 GOODS J033241.12-274358.7 EmG 03 32 41.114 -27 43 58.65   25.129 24.93 24.978   ~ 16 0
130 GOODS J033241.31-274102.8 G 03 32 41.292 -27 41 02.65   24.709 24.63 24.405   ~ 6 0
131 [AZW2014] 22 EmG 03 32 41.887 -27 43 31.23 25.11 24.12 23.85 23.69 24.8591 ~ 12 0
132 GOODS J033241.96-274141.6 G 03 32 41.953 -27 41 41.51   25.352 24.88 24.971   ~ 6 0
133 GOODS J033242.86-274206.4 G 03 32 42.858 -27 42 06.33   23.966 24.58 24.539   ~ 9 0
134 GOODS J033243.88-274219.0 G 03 32 43.873 -27 42 18.97   24.329 24.30 24.495   ~ 7 0
135 GOODS J033245.19-274310.0 G 03 32 45.183 -27 43 09.83   22.124 24.94 24.266 23.704 ~ 7 0

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