2012A&A...539A.106P


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET03:27:22

2012A&A...539A.106P - Astronomy and Astrophysics, volume 539A, 106-106 (2012/3-1)

The DPOSS II distant compact group survey: the EMMI-NTT spectroscopic sample.

POMPEI E. and IOVINO A.

Abstract (from CDS):

We present the results of a redshift survey of 138 candidate compact groups from the DPOSS II catalogue, which extends the available redshift range of spectroscopically confirmed compact groups of galaxies to redshift z∼0.2. In this survey, we aim to confirm group membership via spectroscopic redshift information, to measure the characteristic properties of the confirmed groups, namely their mass, radius, luminosity, velocity dispersion, and crossing time, and to compare them with those of nearby compact groups. Using information available from the literature, we also studied the surrounding group environment and searched for additional, previously unknown, group members, or larger scale structures to whom the group might be associated. Among the 138 observed groups, 96 had 3 or more concordant galaxies, i.e. a 70% success rate. Of these 96, 62 are isolated on the sky, while the remaining 34 are close on the sky to a larger scale structure. The groups which were not spectroscopically confirmed as such turned out to be couples of pairs or chance projections of galaxies on the sky. The median redshift of all the confirmed groups is z∼0.12, which should be compared with the median redshift of 0.03 for the local sample of Hickson compact groups. The average group radius is 50Kpc, and the median radial velocity dispersion is 273km/s, while typical crossing times range from 0.002 H0–1 to 0.135 H0–1 with a median value of 0.02 H0–1, which are quite similar to the values measured for the Hickson compact group sample. The average mass-to-light ratio of the whole sample, M/LB, is 192, which is significantly higher than the value measured for Hickson's compact groups, while the median mass, measured using the virial theorem, is M=1.67x1013M. When we select only the groups that are isolated on the sky, the values quoted become lower and closely resemble the average values measured for Hickson's compact groups. We also find that the characteristics of the groups depend on their environment. We conclude that we observe a population of compact groups that are very similar to those observed at zero redshift. Furthermore, a careful selection of the environment surrounding the compact groups is necessary to detect truly isolated compact structures.

Abstract Copyright:

Journal keyword(s): methods: observational - techniques: spectroscopic - galaxies: groups: general

VizieR on-line data: <Available at CDS (J/A+A/539/A106): table1.dat table2.dat>

Simbad objects: 154

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Number of rows : 154

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 PCG J0010+1750 Gr? 00 10 29.85 +17 50 17.2           ~ 1 0
2 PCG J0011+0544 GrG 00 11 08.97 +05 44 49.1           ~ 1 0
3 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2034 2
4 PCG J0112+0426 GrG 01 12 06.92 +04 26 17.2           ~ 1 0
5 PCG J0152-0010 CGG 01 52 54.3 -00 10 29           ~ 3 0
6 PCG J0252+1116 GrG 02 52 34.21 +11 16 47.4           ~ 1 0
7 PCG J0259+1006 GrG 02 59 03.73 +10 06 36.6           ~ 1 0
8 PCG J0303+0524 GrG 03 03 01.05 +05 24 05.4           ~ 1 0
9 PCG J0303+0847 GrG 03 03 52.37 +08 47 00.6           ~ 1 0
10 PCG J0311+0724 GrG 03 11 39.92 +07 24 04.2           ~ 1 0
11 PCG J0312+0720 Gr? 03 12 32.00 +07 20 11.9           ~ 1 0
12 PCG J0915+2130 GrG 09 15 24.7 +21 30 33           ~ 3 0
13 PCG J0922+1511 Gr? 09 22 31.0 +15 11 10           ~ 2 0
14 ACO 819 ClG 09 32 17.12 +09 40 45.1           ~ 28 0
15 PCG J0932+1719 Gr? 09 32 20.28 +17 19 54.4           ~ 1 0
16 PCG J0932+0943 GrG 09 32 26.01 +09 43 39.9           ~ 2 0
17 PCG J0933+0926 GrG 09 33 10.28 +09 26 39.3           ~ 1 0
18 PCG J0939+1240 GrG 09 39 56.17 +12 40 37.7           ~ 1 0
19 PCG J0940+1131 GrG 09 40 35.69 +11 31 47.9           ~ 1 0
20 PCG J0941+1211 Gr? 09 41 36.76 +12 11 48.8           ~ 1 0
21 PCG J0943+1226 Gr? 09 43 21.08 +12 26 25.9           ~ 1 0
22 MCXC J0947.9+0730 GrG 09 47 57.5 +07 30 26           ~ 7 0
23 PCG J0950+0504 Gr? 09 50 52.18 +05 04 03.6           ~ 1 0
24 PCG J0951+1229 Gr? 09 51 18.13 +12 29 20.0           ~ 1 0
25 SDSSCGA 31 GrG 09 55 07.7 +09 35 20           ~ 4 0
26 PCG J0955+0345 Gr? 09 55 27.22 +03 45 08.3           ~ 1 0
27 PCG J1001-0013 GrG 10 01 02.9 -00 13 43           ~ 3 0
28 PCG J1002+0636 GrG 10 02 37.37 +06 36 26.3           ~ 1 0
29 PCG J1003+1904 CGG 10 03 55.26 +19 04 54.7           ~ 3 0
30 PCG J1006+1128 Gr? 10 06 44.41 +11 28 06.7           ~ 1 0
31 ACO 934 ClG 10 08 37 +17 15.3           ~ 7 0
32 PCG J1008+1715 GrG 10 08 37.84 +17 15 47.6           ~ 1 0
33 PCG J1010+0346 Gr? 10 10 53.65 +03 46 12.9           ~ 1 0
34 [SPD2011] 25394 GrG 10 11 22.1 +08 43 07           ~ 2 0
35 PCG J1012-0106 GrG 10 12 41.24 -01 06 09.6           ~ 1 0
36 PCG J1013-0055 GrG 10 13 28.73 -00 55 22.0           ~ 1 0
37 ACO 957 ClG 10 13 38.42 -00 55 32.6           ~ 195 2
38 PCG J1013+1945 CGG 10 13 45.00 +19 45 41.0           ~ 7 0
39 PCG J1025+0918 GrG 10 25 12.40 +09 18 35.8           ~ 1 0
40 PCG J1033+0902 GrG 10 33 08.01 +09 02 10.3           ~ 4 0
41 PCG J1039+0510 Gr? 10 39 01.83 +05 10 01.0           ~ 1 0
42 PCG J1039+2749 CGG 10 39 58.5 +27 49 48           ~ 4 0
43 PCG J1042+0358 Gr? 10 42 15.81 +03 58 11.6           ~ 1 0
44 PCG J1044+0248 CGG 10 44 18.96 +02 48 14.4           ~ 2 0
45 PCG J1045+2027 GrG 10 45 30.9 +20 26 58           ~ 3 0
46 PCG J1045+1758 CGG 10 45 38.7 +17 58 25           ~ 4 0
47 PCG J1048+2213 CGG 10 48 42.4 +22 13 03           ~ 6 0
48 ACO 1100 ClG 10 48 45.7 +22 14 25           ~ 46 0
49 PCG J1054+1133 GrG 10 54 00.6 +11 33 28           ~ 2 0
50 PCG J1109+0224 GrG 11 09 07.96 +02 24 42.0           ~ 1 0
51 PCG J1109+2033 CGG 11 09 41.21 +20 33 20.5           ~ 4 0
52 PCG J1112+1328 GrG 11 12 50.41 +13 28 15.6           ~ 1 0
53 ACO 1201 ClG 11 12 54.4 +13 26 08           ~ 91 1
54 PCG J1116+0429 GrG 11 16 05.89 +04 29 37.6           ~ 1 0
55 PCG J1117+0746 GrG 11 17 28.530 +07 46 39.72           ~ 1 0
56 PCG J1120+0744 Gr? 11 20 51.4 +07 44 47           ~ 3 0
57 PCG J1142+1407 CGG 11 42 33.2 +14 07 33           ~ 4 0
58 SDSSCGA 75 CGG 11 43 33.1 +21 54 05           ~ 3 0
59 PCG J1143+2153 CGG 11 43 33.91 +21 53 56.7           ~ 11 0
60 PCG J1156+0219 Gr? 11 56 06.1 +02 18 59           ~ 2 0
61 PCG J1156+0318 GrG 11 56 10.2 +03 17 57           ~ 3 0
62 PCG J1206+0817 GrG 12 06 28.60 +08 17 23.4           ~ 1 0
63 NGC 4111 GiP 12 07 03.127 +43 03 55.41 12.07 11.63 10.74     ~ 311 1
64 PCG J1211+1344 CGG 12 11 57.92 +13 44 21.4           ~ 3 0
65 PCG J1212+2235 CGG 12 12 52.51 +22 35 19.9           ~ 3 0
66 PCG J1213+0727 GrG 12 13 47.14 +07 27 10.0           ~ 3 0
67 PCG J1213+0159 Gr? 12 13 59.65 +01 59 56.9           ~ 1 0
68 PCG J1215+1534 CGG 12 15 15.4 +15 33 58           ~ 4 0
69 PCG J1217+1218 GrG 12 17 38.05 +12 18 33.2           ~ 1 0
70 PCG J1217+0339 CGG 12 17 40.61 +03 39 33.6           ~ 2 0
71 PCG J1221+0805 CGG 12 21 57.97 +08 05 24.9           ~ 3 0
72 PCG J1222+1139 GrG 12 22 22.05 +11 39 23.3           ~ 1 0
73 PCG J1228-0109 GrG 12 28 50.96 -01 09 38.7           ~ 1 0
74 PCG J1229+0839 GrG 12 29 05.87 +08 39 49.4           ~ 2 0
75 PCG J1234+0445 Gr? 12 34 37.40 +04 45 40.0           ~ 1 0
76 ACO 1564 ClG 12 35 01.95 +01 47 54.4           ~ 32 0
77 PCG J1235+0147 GrG 12 35 12.23 +01 47 05.2           ~ 1 0
78 PCG J1258+0622 GrG 12 58 35.4 +06 22 46           ~ 3 0
79 PCG J1301+1915 CGG 13 01 57.00 +19 15 11.0           ~ 4 0
80 ACO 1663 ClG 13 02 52.55 -02 31 04.0           ~ 91 0
81 PCG J1302+0531 CGG 13 02 57.18 +05 31 12.5           ~ 4 0
82 PCG J1303-0222 GrG 13 03 08.3 -02 22 08           ~ 2 0
83 PCG J1307+0740 GrG 13 07 32.35 +07 40 24.6           ~ 1 0
84 PCG J1309+1553 CGG 13 09 26.90 +15 53 58.6           ~ 3 0
85 PCG J1311-0119 Gr? 13 11 32.040 -01 19 44.11           ~ 1 0
86 PCG J1312+0718 GrG 13 12 11.6 +07 18 29           ~ 8 0
87 PCG J1317-0148 GrG 13 17 25.13 -01 48 20.6           ~ 1 0
88 PCG J1317-0310 Gr? 13 17 30.35 -03 10 41.2           ~ 1 0
89 PCG J1326+0607 GrG 13 26 19.11 +06 07 09.2           ~ 1 0
90 PCG J1328+0126 CGG 13 28 26.8 +01 26 41           ~ 4 0
91 PCG J1330-0033 GrG 13 30 42.44 -00 33 02.6           ~ 1 0
92 PCG J1352+1234 GrG 13 52 14.9 +12 34 01           ~ 3 0
93 PCG J1354+0705 GrG 13 54 56.850 +07 05 21.55           ~ 1 0
94 PCG J1400+0534 Gr? 14 00 26.5 +05 34 58           ~ 2 0
95 PCG J1404+1022 GrG 14 04 30.54 +10 22 25.0           ~ 1 0
96 PCG J1411+0937 GrG 14 11 29.54 +09 37 48.8           ~ 1 0
97 PCG J1435+0818 Gr? 14 35 11.69 +08 18 15.3           ~ 1 0
98 PCG J1437+1856 Gr? 14 37 41.22 +18 56 27.1           ~ 1 0
99 PCG J1452+2759 CGG 14 52 23.29 +27 56 42.5           ~ 5 0
100 NVSS J145233+275758 rG 14 52 33.6 +27 57 54           ~ 66 1
101 PCG J1458-0142 Gr? 14 58 53.0 -01 42 33           ~ 2 0
102 PCG J1504+0705 GrG 15 04 57.7 +07 05 32           ~ 3 0
103 PCG J1505+1349 GrG 15 05 13.400 +13 49 44.72           ~ 1 0
104 PCG J1507+0748 Gr? 15 07 09.00 +07 48 38.4           ~ 2 0
105 SDSSCGB 2472 GrG 15 10 37.6 +06 16 26           ~ 4 0
106 PCG J1510+0314 GrG 15 10 57.94 +03 14 43.3           ~ 2 0
107 PCG J1513+0255 GrG 15 13 29.9 +02 55 10           ~ 3 0
108 PCG J1513+1907 Gr? 15 13 40.07 +19 07 14.1           ~ 1 0
109 PCG J1516+0257 CGG 15 16 24.760 +02 57 57.46           ~ 2 0
110 PCG J1518-0137 GrG 15 18 33.5 -01 37 33           ~ 2 0
111 SDSSCGA 4 CGG 15 25 53.7 +05 44 18           ~ 3 0
112 PCG J1530+1231 Gr? 15 30 46.24 +12 31 31.3           ~ 1 0
113 PCG J1531+0124 Gr? 15 31 47.8 +01 25 02           ~ 2 0
114 PCG J1532+0212 GrG 15 32 34.59 +02 12 21.1           ~ 1 0
115 PCG J1532+0016 GrG 15 33 00.480 +00 16 59.07           ~ 3 0
116 PCG J1541+0346 Gr? 15 41 14.46 +03 46 10.4           ~ 1 0
117 PCG J1546+0051 Gr? 15 46 29.970 +00 51 20.23           ~ 1 0
118 PCG J1548+0304 GrG 15 48 02.57 +03 04 16.5           ~ 1 0
119 PCG J1549+2756 CGG 15 49 30.1 +27 56 19           ~ 4 0
120 PCG J1550+0718 GrG 15 50 25.1 +07 18 31           ~ 3 0
121 PCG J1553+1039 Gr? 15 53 41.51 +10 39 13.1           ~ 1 0
122 PCG J1603+0800 Gr? 16 03 27.25 +08 00 50.8           ~ 1 0
123 PCG J1610+2013 GrG 16 10 09.2 +20 13 51           ~ 3 0
124 PCG J1617+2041 Gr? 16 17 47.86 +20 41 45.7           ~ 1 0
125 PCG J1617+2758 CGG 16 17 54.00 +27 58 27.0           ~ 3 0
126 SDSSCGA 446 CGG 16 22 58.5 +17 47 02           ~ 3 0
127 PCG J1622+1747 GrG 16 22 59.3 +17 47 02           ~ 2 0
128 PCG J1704+2818 CGG 17 04 57.00 +28 18 34.0           ~ 3 0
129 PCG J2207-0207 Gr? 22 07 19.72 -02 07 23.6           ~ 1 0
130 PCG J2207-0041 GrG 22 07 49.1 -00 41 56           ~ 3 0
131 PCG J2209+0124 GrG 22 09 29.11 +01 24 12.6           ~ 1 0
132 PCG J2214+0022 GrG 22 14 14.50 +00 22 03.2           ~ 1 0
133 PCG J2214+0128 GrG 22 14 42.20 +01 28 23.5           ~ 1 0
134 PCG J2217-0132 GrG 22 17 55.91 -01 32 27.9           ~ 1 0
135 PCG J2220+0534 Gr? 22 20 37.15 +05 34 40.6           ~ 1 0
136 PCG J2221-0105 Gr? 22 21 11.76 -01 05 04.9           ~ 1 0
137 PCG J2221+0027 Gr? 22 21 21.97 +00 27 43.2           ~ 1 0
138 PCG J2224+0715 Gr? 22 24 50.90 +07 15 01.9           ~ 1 0
139 PCG J2226+0512 GrG 22 26 33.57 +05 12 07.0           ~ 1 0
140 PCG J2229+0038 Gr? 22 29 00.0 +00 38 15           ~ 2 0
141 PCG J2232+0342 GrG 22 32 16.30 +03 42 45.6           ~ 1 0
142 PCG J2239-0056 GrG 22 39 22.24 -00 56 11.3           ~ 1 0
143 PCG J2243+1203 GrG 22 43 46.88 +12 03 35.5           ~ 1 0
144 PCG J2247+0203 Gr? 22 47 13.50 +02 03 37.8           ~ 1 0
145 PCG J2249-0117 Gr? 22 49 31.55 -01 17 55.1           ~ 1 0
146 PCG J2255+0949 Gr? 22 55 56.54 +09 49 06.3           ~ 1 0
147 PCG J2258+0111 GrG 22 58 07.05 +01 11 01.2           ~ 1 0
148 NGC 7507 GiG 23 12 07.595 -28 32 22.70   11.60   9.98   ~ 167 0
149 ACO 2571 ClG 23 18 34 -02 15.6           ~ 15 0
150 PCG J2319-0227 GrG 23 19 10.28 -02 27 09.9           ~ 3 0
151 PCG J2334+0037 Gr? 23 34 46.19 +00 37 43.5           ~ 1 0
152 PCG J2341+0004 GrG 23 41 00.070 +00 04 50.30           ~ 4 0
153 ACO 2644 ClG 23 41 05 +00 05.3           ~ 41 0
154 PCG J2354+0323 GrG 23 54 39.98 +03 23 08.6           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.03.02-03:27:22

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