2005AJ....130.2043P

Query : 2005AJ....130.2043P

2005AJ....130.2043P - Astron. J., 130, 2043-2057 (2005/November-0)

A Hubble Space Telescope snapshot survey of dynamically close galaxy pairs in the CNOC2 redshift survey.

PATTON D.R., GRANT J.K., SIMARD L., PRITCHET C.J., CARLBERG R.G. and BORNE K.D.

Abstract (from CDS):

We compare the structural properties of two classes of galaxies at intermediate redshift: those in dynamically close galaxy pairs, and those that are isolated. Both samples are selected from the Canadian Network for Observational Cosmology field galaxy redshift survey (CNOC2) and have redshifts in the range 0.1<z<0.6. Hubble Space Telescope WFPC2 images were acquired as part of a snapshot survey and were used to measure bulge fraction and asymmetry for these galaxies. We find that paired and isolated galaxies have identical distributions of bulge fractions. Conversely, we find that paired galaxies are much more likely to be asymmetric (RT+RA≥0.13) than isolated galaxies. Assuming that half of these pairs are unlikely to be close enough to merge, we estimate that 40%±11% of merging galaxies are asymmetric, compared with 9%±3% of isolated galaxies. The difference is even more striking for strongly asymmetric (RT+RA≥0.16) galaxies: 25%±8% for merging galaxies versus 1%±1% for isolated galaxies. We find that strongly asymmetric paired galaxies are very blue, with rest-frame B-R colors close to 0.80, compared with a mean (B-R)0 of 1.24 for all paired galaxies. In addition, asymmetric galaxies in pairs have strong [O II] λ3727 emission lines. We conclude that close to half of the galaxy pairs in our sample are in the process of merging and that most of these mergers are accompanied by triggered star formation.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Interactions - Galaxies: Structure - Surveys

VizieR on-line data: <Available at CDS (J/AJ/130/2043): table2.dat table3.dat>

Nomenclature: Table 2: [PGS2005] GinP NNA (Nos 1A-72A, 1B-72B). Table 3: [PGS2005] Isolated NN (Nos 1-77).

Simbad objects: 150

goto Full paper

goto View the references in ADS

Number of rows : 150
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 CNOC2 0223 191492 G 02 23 25.12 -00 05 07.9       20.5   ~ 1 0
2 CNOC2 0223 191602 G 02 23 25.41 -00 04 49.1       20.2   ~ 1 0
3 [PGS2005] GinP 7B GiP 02 23 28.29 -00 03 55.0       19.6   ~ 2 1
4 [PGS2005] GinP 7A GiP 02 23 28.45 -00 03 55.1       19.2   ~ 2 1
5 CNOC2 0223 171287 G 02 24 42.76 -00 05 57.8       20.5   ~ 1 0
6 CNOC2 0223 170801 G 02 24 47.75 -00 07 21.9       19.6   ~ 1 0
7 CNOC2 0223 170849 G 02 24 50.90 -00 07 12.7       21.2   ~ 1 0
8 CNOC2 0223 171157 G 02 24 53.29 -00 06 20.5       20.6   ~ 1 0
9 [PGS2005] GinP 16A GiP 02 25 02.42 +00 01 13.1       20.0   ~ 2 1
10 [PGS2005] GinP 16B GiP 02 25 02.84 +00 01 14.4       20.4   ~ 2 1
11 CNOC2 0223 161138 G 02 25 06.88 +00 02 32.8       20.3   ~ 1 0
12 [PGS2005] GinP 6A GiP 02 25 09.06 +00 18 05.2       19.0   ~ 2 1
13 [PGS2005] GinP 6B GiP 02 25 09.33 +00 18 04.8       20.1   ~ 2 1
14 CNOC2 0223 130882 G 02 25 11.73 +00 18 50.4       20.4   ~ 1 0
15 CNOC2 0223 130667 G 02 25 12.65 +00 17 54.5       18.8   ~ 1 0
16 CNOC2 0223 130491 G 02 25 12.74 +00 17 06.4       19.1   ~ 1 0
17 CNOC2 0223 130656 G 02 25 13.25 +00 17 51.7       19.4   ~ 1 0
18 CNOC2 0223 140073 G 02 25 15.60 +00 07 06.9       20.8   ~ 1 0
19 [PGS2005] GinP 4A GiP 02 25 22.94 +00 07 12.4       18.8   ~ 2 1
20 [PGS2005] GinP 4B GiP 02 25 23.20 +00 07 09.2       20.6   ~ 2 1
21 CNOC2 0223 140376 G 02 25 25.74 +00 08 32.8       20.0   ~ 1 0
22 CNOC2 0223 131141 GiP 02 25 25.82 +00 20 05.8       20.2   ~ 1 1
23 CNOC2 0223 131144 GiP 02 25 25.89 +00 20 06.4       20.0   ~ 1 1
24 CNOC2 0223 131066 G 02 25 31.36 +00 19 42.4       20.3   ~ 1 0
25 CNOC2 0223 30996 G 02 25 45.61 +00 33 33.4       21.0   ~ 1 0
26 CNOC2 0223 21797 G 02 25 47.12 +00 29 26.3       19.2   ~ 1 0
27 [PGS2005] GinP 14A GiP 02 25 48.86 +00 34 00.2       19.6   ~ 2 1
28 [PGS2005] GinP 14B GiP 02 25 48.90 +00 34 03.4       21.1   ~ 2 1
29 [PGS2005] GinP 10B GiP 02 25 49.02 +00 30 33.7       20.4   ~ 2 1
30 SDSS J022549.16+003032.7 GiP 02 25 49.16564 +00 30 32.8795       19.1   ~ 3 1
31 SDSS J022549.41+003021.6 GiP 02 25 49.42859 +00 30 22.2062       19.9   ~ 2 1
32 SDSS J022549.87+003023.6 GiP 02 25 49.86884 +00 30 23.5348       19.5   ~ 2 1
33 CNOC2 0223 20713 G 02 25 50.07 +00 25 12.0       20.5   ~ 1 0
34 CNOC2 0223 62160 GiP 02 25 50.10 +01 00 41.5       18.8   ~ 1 1
35 CNOC2 0223 62166 GiP 02 25 50.25 +01 00 42.0       20.1   ~ 1 1
36 CNOC2 0223 30382 G 02 25 51.62 +00 30 51.3       19.6   ~ 1 0
37 CNOC2 0223 70252 G 02 25 52.40 +01 02 17.8       19.8   ~ 1 0
38 CNOC2 0223 62315 G 02 25 52.53 +01 01 24.2       19.2   ~ 1 0
39 SDSS J022555.12+004718.3 GiP 02 25 55.12769 +00 47 18.2275       19.6   ~ 3 1
40 SDSS J022555.58+004718.6 GiP 02 25 55.58998 +00 47 18.6230       20.5   ~ 3 1
41 CNOC2 0223 31673 G 02 26 05.17 +00 36 25.5       21.2   ~ 1 0
42 CNOC2 0223 40342 G 02 26 11.95 +00 38 24.1       18.5   ~ 1 0
43 [PGS2005] GinP 20A GiP 02 26 13.19 +00 38 25.3       20.1   ~ 2 1
44 [PGS2005] GinP 20B GiP 02 26 13.24 +00 38 26.9       20.7   ~ 2 1
45 [PGS2005] GinP 9B GiP 02 26 17.09 +00 12 47.3       20.6   ~ 2 1
46 [PGS2005] GinP 9A GiP 02 26 17.22 +00 12 46.9       19.4   ~ 2 1
47 CNOC2 0223 40234 G 02 26 19.19 +00 37 56.7       19.7   ~ 1 0
48 CNOC2 0223 100908 G 02 26 47.44 +00 03 19.9       21.2   ~ 1 0
49 CNOC2 0223 100974 G 02 26 48.44 +00 03 40.0       21.0   ~ 1 0
50 CNOC2 0223 100681 G 02 26 52.15 +00 02 12.2       19.2   ~ 1 0
51 [PGS2005] GinP 1B GiP 02 26 53.07 +00 02 38.6       19.2   ~ 2 1
52 [PGS2005] GinP 1A GiP 02 26 53.50 +00 02 48.0       17.0   ~ 2 1
53 CNOC2 0920 180867 GiP 09 21 42.11 +36 37 57.4       20.7   ~ 1 1
54 CNOC2 0920 180845 GiP 09 21 42.49 +36 37 54.4       20.7   ~ 1 1
55 CNOC2 0920 181107 G 09 21 44.43 +36 38 30.9       20.0   ~ 1 0
56 CNOC2 0920 180260 G 09 21 45.07 +36 36 29.9       20.8   ~ 1 0
57 [PGS2005] GinP 36B GiP 09 22 27.83 +36 46 54.2       20.0   ~ 2 1
58 [PGS2005] GinP 36A GiP 09 22 27.87 +36 46 51.9       19.9   ~ 2 1
59 CNOC2 0920 160943 G 09 22 34.01 +36 47 14.5       17.4   ~ 1 0
60 CNOC2 0920 151228 G 09 22 56.31 +36 50 33.4       20.8   ~ 1 0
61 CNOC2 0920 151064 GiP 09 23 00.12 +36 49 45.2       21.2   ~ 1 1
62 CNOC2 0920 151065 GiP 09 23 00.43 +36 49 45.3       20.3   ~ 1 1
63 [PGS2005] GinP 31B GiP 09 23 12.50 +37 07 04.0       20.4   ~ 2 1
64 [PGS2005] GinP 31A GiP 09 23 12.63 +37 07 04.7       18.9   ~ 2 1
65 CNOC2 0920 131204 G 09 23 13.70 +37 06 56.7       18.8   ~ 1 0
66 CNOC2 0920 150212 GiP 09 23 13.80 +36 45 29.3       20.2   ~ 1 1
67 CNOC2 0920 150040 G 09 23 13.93 +36 44 43.1       20.8   ~ 1 0
68 CNOC2 0920 150213 GiP 09 23 14.30 +36 45 29.5       21.0   ~ 1 1
69 CNOC2 0920 150181 G 09 23 15.54 +36 45 20.7       19.6   ~ 1 0
70 CNOC2 0920 131311 G 09 23 20.06 +37 07 21.6       18.3   ~ 1 0
71 CNOC2 0920 131351 G 09 23 21.04 +37 07 31.1       20.1   ~ 1 0
72 CNOC2 0920 150193 G 09 23 23.48 +36 45 25.5       20.3   ~ 1 0
73 [PGS2005] GinP 34A GiP 09 23 30.71 +37 11 19.6       19.6   ~ 2 1
74 [PGS2005] GinP 34B GiP 09 23 30.87 +37 11 21.0       20.1   ~ 2 1
75 CNOC2 0920 20268 G 09 23 31.84 +37 09 55.6       18.4   ~ 1 0
76 CNOC2 0920 20409 G 09 23 33.83 +37 10 39.4       18.1   ~ 1 0
77 CNOC2 0920 30026 G 09 23 40.18 +37 16 05.2       20.7   ~ 1 0
78 [PGS2005] GinP 29B GiP 09 23 42.49 +37 31 40.2       19.0   ~ 2 1
79 [PGS2005] GinP 29A GiP 09 23 43.09 +37 31 42.9       18.6   ~ 2 1
80 CNOC2 0920 50330 G 09 23 43.87 +37 32 02.2       19.4   ~ 1 0
81 CNOC2 0920 50346 G 09 23 52.14 +37 32 07.0       20.6   ~ 1 0
82 [PGS2005] GinP 25A BiC 09 24 03.2167253640 +37 04 52.089678156       17.1   ~ 3 1
83 CNOC2 0920 10500 G 09 24 03.30 +37 03 53.7       20.6   ~ 1 0
84 [PGS2005] GinP 25B GiP 09 24 03.32 +37 04 43.9       19.5   ~ 2 1
85 CNOC2 0920 10748 G 09 24 04.19 +37 04 59.4       18.4   ~ 1 0
86 CNOC2 0920 11194 G 09 24 04.30 +37 07 04.7       18.7   ~ 1 0
87 CNOC2 0920 20209 GiP 09 24 05.90 +37 09 38.8       19.7   ~ 1 1
88 CNOC2 0920 10390 G 09 24 05.97 +37 03 27.6       19.6   ~ 1 0
89 CNOC2 0920 10331 G 09 24 06.23 +37 03 09.7       20.3   ~ 1 0
90 CNOC2 0920 20237 GiP 09 24 06.44 +37 09 45.3       19.7   ~ 1 1
91 CNOC2 0920 20299 G 09 24 07.39 +37 10 01.3       20.0   ~ 1 0
92 [PGS2005] GinP 30B GiP 09 24 07.95 +37 05 36.8       19.2   ~ 2 1
93 [PGS2005] GinP 30A GiP 09 24 08.24 +37 05 42.5       18.8   ~ 2 1
94 CNOC2 0920 11167 G 09 24 08.27 +37 06 55.3       19.0   ~ 1 0
95 CNOC2 0920 80744 G 09 24 10.53 +37 05 24.4       19.8   ~ 1 0
96 CNOC2 0920 81330 G 09 24 12.56 +37 08 22.9       19.9   ~ 1 0
97 [PGS2005] GinP 28A GiP 09 24 39.40 +37 08 15.3       18.2   ~ 2 1
98 [PGS2005] GinP 28B GiP 09 24 39.46 +37 08 13.4       20.4   ~ 2 1
99 CNOC2 0920 81152 G 09 24 40.62 +37 07 32.7       20.4   ~ 1 0
100 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
101 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
102 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
103 CNOC2 1447 151214 G 14 48 53.474 +08 55 20.18       21.3   ~ 2 0
104 [PGS2005] GinP 46A GiP 14 48 55.811 +08 56 44.25       18.2   ~ 3 1
105 [PGS2005] GinP 46B GiP 14 48 56.261 +08 56 45.56       20.3   ~ 3 1
106 CNOC2 1447 110526 G 14 49 25.595 +08 50 52.58       19.7   ~ 2 0
107 [PGS2005] GinP 49A GiP 14 49 26.909 +08 52 10.63       19.1   ~ 3 1
108 [PGS2005] GinP 49B GiP 14 49 27.092 +08 52 09.90       20.8   ~ 3 1
109 CNOC2 1447 110482 G 14 49 28.213 +08 50 37.47       20.9   ~ 2 0
110 CNOC2 1447 110595 G 14 49 29.40 +08 51 07.8       21.1   ~ 1 0
111 CNOC2 1447 40758 G 14 49 34.783 +09 29 42.82       20.1   ~ 2 0
112 CNOC2 1447 40497 G 14 49 38.302 +09 28 34.62       20.1   ~ 2 0
113 [PGS2005] GinP 60B GiP 14 49 38.716 +09 29 30.94       21.3   ~ 3 1
114 [PGS2005] GinP 60A GiP 14 49 38.950 +09 29 30.68       20.9   ~ 3 1
115 CNOC2 1447 40441 G 14 49 40.045 +09 28 22.83       20.6   ~ 2 0
116 CNOC2 1447 51337 G 14 49 52.310 +09 39 47.36       20.6   ~ 2 0
117 [PGS2005] GinP 51B GiP 14 49 54.954 +09 38 43.70       20.0   ~ 3 1
118 [PGS2005] GinP 51A GiP 14 49 55.049 +09 38 44.85       19.2   ~ 3 1
119 CNOC2 1447 82395 G 14 50 01.476 +09 12 43.08       18.9   ~ 2 0
120 [PGS2005] GinP 52A GiP 14 50 05.643 +09 11 52.42       19.3   ~ 3 1
121 [PGS2005] GinP 52B GiP 14 50 05.867 +09 11 56.25       20.1   ~ 3 1
122 CNOC2 1447 101860 G 14 50 24.873 +08 56 22.21       20.4   ~ 2 0
123 [PGS2005] GinP 45A GiP 14 50 25.206 +08 56 26.22       18.1   ~ 3 1
124 [PGS2005] GinP 45B GiP 14 50 25.551 +08 56 24.14       20.4   ~ 3 1
125 CNOC2 2148 191639 G 21 48 47.520 -05 57 32.33       19.2   ~ 2 0
126 CNOC2 2148 191213 G 21 48 47.659 -05 58 56.58       21.1   ~ 2 0
127 CNOC2 2148 191186 G 21 48 47.959 -05 59 02.02       19.8   ~ 2 0
128 [PGS2005] GinP 72A GiP 21 50 16.487 -05 45 44.37       20.8   ~ 3 1
129 [PGS2005] GinP 72B GiP 21 50 16.589 -05 45 45.58       21.2   ~ 3 1
130 CNOC2 2148 162168 G 21 50 18.523 -05 46 06.28       20.6   ~ 2 0
131 CNOC2 2148 162322 G 21 50 19.651 -05 45 29.86       21.5   ~ 2 0
132 CNOC2 2148 161891 G 21 50 19.907 -05 47 12.77       19.8   ~ 2 0
133 CNOC2 2148 162029 G 21 50 20.486 -05 46 39.17       19.9   ~ 2 0
134 CNOC2 2148 70517 G 21 51 09.61 -04 47 50.4       17.8   ~ 1 0
135 [PGS2005] GinP 67A GiP 21 51 12.48 -05 17 42.8       19.1   ~ 2 1
136 [PGS2005] GinP 67B GiP 21 51 12.88 -05 17 48.6       20.2   ~ 2 1
137 [PGS2005] Isolated 68 AGN 21 51 12.9 -05 18 42   20.92 20.86 20.2   ~ 4 0
138 CNOC2 2148 71059 G 21 51 18.02 -04 46 09.0       18.3   ~ 1 0
139 CNOC2 2148 71141 G 21 51 18.04 -04 45 55.9       17.7   ~ 1 0
140 CNOC2 2148 42309 G 21 51 19.504 -05 06 47.54       21.5   ~ 2 0
141 CNOC2 2148 70881 G 21 51 20.76 -04 46 38.5       20.9   ~ 1 0
142 CNOC2 2148 71573 G 21 51 20.96 -04 44 38.2       19.7   ~ 1 0
143 [PGS2005] GinP 68B GiP 21 51 22.09 -04 45 18.9       21.1   ~ 2 1
144 [PGS2005] GinP 68A GiP 21 51 22.15 -04 45 14.3       19.5   ~ 2 1
145 CNOC2 2148 42181 GiP 21 51 24.6849838632 -05 07 10.351310376       18.8   ~ 2 1
146 CNOC2 2148 42170 GiP 21 51 24.763 -05 07 12.15       19.3   ~ 2 1
147 CNOC2 2148 42026 G 21 51 25.0961465112 -05 07 42.535184232       17.3   ~ 2 0
148 CNOC2 2148 51898 GiP 21 51 25.97 -04 58 23.3       21.1   ~ 1 1
149 CNOC2 2148 51930 GiP 21 51 26.12 -04 58 16.6       20.0   ~ 1 1
150 CNOC2 2148 51766 G 21 51 31.74 -04 59 00.3       20.5   ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2005AJ....130.2043P and select 'bookmark this link' or equivalent in the popup menu