1999MNRAS.308..618A

Query : 1999MNRAS.308..618A

1999MNRAS.308..618A - Mon. Not. R. Astron. Soc., 308, 618-622 (1999/September-3)

Velocity dispersion estimates of APM galaxy clusters.

ALONSO M.V., VALOTTO C., LAMBAS D.G. and MURIEL H.

Abstract (from CDS):

We present 83 new galaxy radial velocities in the field of 18 APM clusters with redshifts between 0.06 and 0.13. The clusters have Abell identifications and the galaxies were selected within 0.75h–1Mpc in projection from their centres. We derive new cluster velocity dispersions for 13 clusters using our data and published radial velocities.

We analyse correlations between cluster velocity dispersions and cluster richness counts as defined in Abell and APM catalogues. The correlations show a statistically significant trend although with a large scatter, suggesting that richness is a poor estimator of cluster mass irrespectively of cluster selection criteria and richness definition. We find systematically lower velocity dispersions in the sample of Abell clusters that do not fulfil APM cluster selection criteria, suggesting artificially higher Abell richness counts owing to contamination by projection effects in this subsample.


Abstract Copyright: 1999 Blackwell Science Ltd

Journal keyword(s): galaxies: clusters: general - galaxies: kinematics and dynamics - cosmology: observations - cosmology: theory MNRAS.310.115

Nomenclature: Table 3: [AVL99] JHHMMSS.s+DDMMSS.s N=83.

Simbad objects: 114

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Number of rows : 114
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 2MASX J00102437-2849350 GiC 00 10 24.3453473928 -28 49 35.049839340   16.830 13.80 15.571   ~ 12 0
2 2dFGRS TGS278Z175 GiC 00 10 32.4388140912 -28 51 54.152619120   16.869 13.80 15.471   ~ 13 0
3 2MASX J00111885-2850238 GiC 00 11 18.8698958880 -28 50 24.203235516     15.38     ~ 7 0
4 ACO 2734 ClG 00 11 21.60 -28 51 16.6           ~ 156 0
5 2dFGRS TGS278Z153 GiC 00 11 34.8321066912 -29 01 28.321063932   17.03 14.33 15.762   ~ 13 0
6 2MASX J00115520-2843503 LSB 00 11 55.2198245640 -28 43 50.391885936   16.15 11.98     ~ 24 0
7 2MASX J00120486-2847053 GiC 00 12 04.8722912328 -28 47 05.303531616   17.273   15.942   ~ 8 0
8 ACO 2755 ClG 00 17 41.14 -35 12 01.0           ~ 42 1
9 [AVL99] J002035.0-253926.8 GiC 00 20 35.0 -25 39 27           ~ 1 0
10 LEDA 133668 EmG 00 20 39.0708525840 -25 35 29.981576220   15.349   13.857   ~ 15 0
11 ACO 22 ClG 00 20 41.4 -25 42 39           ~ 111 0
12 2MASX J00275389-2341463 GiC 00 27 53.9302998960 -23 41 46.904311320           ~ 2 0
13 2MASX J00281196-2342069 GiC 00 28 11.9745287640 -23 42 07.067770992           ~ 3 0
14 ACO 42 ClG 00 28 36.6 -23 36 23           ~ 63 0
15 LEDA 133654 EmG 00 28 51.834 -23 36 23.79   16.26       ~ 6 0
16 2MASX J00285924-2331557 GiC 00 28 59.2056685656 -23 31 55.805830572   17.60   16.43   ~ 4 0
17 APMCC 106 ClG 00 44 02.35 -26 00 12.2           ~ 3 0
18 2MASX J00445692-6328363 GiC 00 44 56.9368713192 -63 28 36.015005244           ~ 6 0
19 2MASX J00451294-6333142 GiC 00 45 12.9704539608 -63 33 14.040856404   17.52   16.07   ~ 6 0
20 2MASX J00452213-6337271 GiC 00 45 22.0605916776 -63 37 27.214508784   17.07   15.67   ~ 6 0
21 ACO 2819 ClG 00 45 51.1 -63 34 42           ~ 34 1
22 2MASX J00462036-6328074 GiC 00 46 20.2991678472 -63 28 07.230541116   16.48   15.11   ~ 8 0
23 6dFGS gJ005530.8-374953 EmG 00 55 30.7691609472 -37 49 52.842566856   16.62   15.82   ~ 3 0
24 ACO S 106 ClG 00 56 19.6 -37 53 32           ~ 11 0
25 2MASX J00571222-6643492 GiC 00 57 12.1277834064 -66 43 49.833568596   16.89   15.56   ~ 4 0
26 2MASX J00574617-6647503 GiC 00 57 46.1850299544 -66 47 50.706863232   17.04   15.71   ~ 4 0
27 ACO S 112 ClG 00 57 52.9 -66 47 50           ~ 17 0
28 2MASX J00581205-6648180 GiC 00 58 11.9912851560 -66 48 18.087282252   17.13   15.79   ~ 2 0
29 [AVL99] J005820.0-664758.0 GiC 00 58 20.0 -66 47 58           ~ 1 0
30 2MASX J00582086-6648011 GiC 00 58 20.8032440832 -66 48 01.010918700   16.71   15.38   ~ 3 0
31 2MASX J01171300-3804174 GiC 01 17 13.0417662192 -38 04 17.488422408           ~ 3 0
32 ACO S 144 ClG 01 17 21.1 -37 57 47           ~ 8 0
33 2MASX J01172588-3801373 GiC 01 17 25.9068315864 -38 01 37.295889312           ~ 3 0
34 LEDA 109132 G 01 17 31.1874216360 -38 01 20.354716848           ~ 5 0
35 LEDA 615265 EmG 01 26 09.8617585992 -37 56 41.614718172   17.24   15.75   ~ 10 0
36 ACO 2911 ClG 01 26 12.9 -37 56 22           ~ 63 0
37 ACO 3098 ClG 03 13 51.2 -38 19 37           ~ 22 0
38 ACO S 333 ClG 03 15 09.95 -29 14 37.4           ~ 17 0
39 2MASX J03155636-5050110 GiC 03 15 56.3250300384 -50 50 10.997086920           ~ 3 0
40 2MASX J03160481-5055490 GiC 03 16 04.8424135104 -50 55 48.958560624           ~ 2 0
41 LEDA 133014 Sy2 03 16 08.7840275616 -29 18 20.456501580   15.922   14.783   ~ 8 0
42 2dFGRS TGS320Z036 GiC 03 16 13.8617356632 -29 13 51.302186004   16.839   15.669   ~ 4 0
43 2MASX J03161772-5056550 GiC 03 16 17.7707123664 -50 56 55.276050264           ~ 2 0
44 2MASX J03162457-5052389 GiC 03 16 24.5437345152 -50 52 39.242975160           ~ 3 0
45 2MASX J03162700-5054417 GiC 03 16 26.9879733312 -50 54 41.972319072           ~ 2 0
46 [AVL99] J031629.0-505408.0 GiC 03 16 29.0 -50 54 08           ~ 1 0
47 ACO 3110 ClG 03 16 31 -50 54.0           ~ 15 0
48 LEDA 12161 Sy2 03 16 31.2041793816 -50 54 41.623076232   16.42   15.11   ~ 8 0
49 2MASX J03163229-5054078 GiC 03 16 32.2433150328 -50 54 07.872774012           ~ 3 0
50 2MASX J03163290-5058588 GiC 03 16 32.9275574928 -50 58 58.956639564           ~ 2 0
51 2MASX J03163494-5054058 GiC 03 16 34.8746347272 -50 54 05.999958828           ~ 3 0
52 2MASX J03163716-5053058 GiC 03 16 37.1269985640 -50 53 05.892993348           ~ 3 0
53 2MASX J03170181-4421049 GiC 03 17 01.813 -44 21 04.92           ~ 6 0
54 2MASX J03171807-4421213 GiC 03 17 18.071 -44 21 21.34           ~ 5 0
55 ACO S 336 ClG 03 17 31.7 -44 38 43           ~ 11 0
56 ACO S 345 ClG 03 21 47 -45 32.3           ~ 12 0
57 LEDA 145499 EmG 03 21 59.0981300304 -45 33 21.495735360   16.73   15.40   ~ 5 0
58 2MASX J03285877-4555595 GiC 03 28 58.8198924456 -45 55 59.682142668           ~ 2 0
59 2MASX J03290816-4558246 GiC 03 29 08.1375596664 -45 58 24.603944952   16.76   15.44   ~ 4 0
60 2MASX J03291670-4604486 GiC 03 29 16.7083836624 -46 04 48.964631988           ~ 2 0
61 ACO S 356 ClG 03 29 36.1 -46 00 47           ~ 10 0
62 LEDA 130273 BiC 03 29 52.4042247696 -46 02 19.805861688   16.18       ~ 15 1
63 LEDA 130272 EmG 03 30 00.5155423848 -46 05 47.755266828   16.13       ~ 12 0
64 2MASX J20384242-6118105 GiC 20 38 42.3804310296 -61 18 10.218564072   17.23   15.81   ~ 6 0
65 2MASX J20390350-6110538 GiC 20 39 03.5591792016 -61 10 54.285988080   16.82   15.44   ~ 5 0
66 2MASX J20394680-6111239 GiC 20 39 46.8053258952 -61 11 23.629239924   16.93   15.44   ~ 5 0
67 2MASX J20395531-6117384 GiC 20 39 55.3917707088 -61 17 37.975895700   17.35   15.78   ~ 3 0
68 ACO 3703 ClG 20 40 50.7 -61 12 49           ~ 22 0
69 ACO S 987 ClG 22 02 23.5 -22 30 15           ~ 27 0
70 ACO 3856 ClG 22 18 45.2 -38 53 57           ~ 87 2
71 2MASX J22453331-4558287 GiC 22 45 33.3410942112 -45 58 28.747162164           ~ 4 0
72 ACO 3910 ClG 22 45 55.5 -45 54 42           ~ 10 0
73 2MASX J22455807-4545593 GiC 22 45 58.0468360248 -45 45 59.079970224   17.03   15.58   ~ 4 0
74 2MASX J22460845-4558323 BiC 22 46 08.4717110232 -45 58 32.537816076   16.15       ~ 8 0
75 2MASX J22465951-4557010 GiC 22 46 59.5410253536 -45 57 01.510537032   16.57   15.25   ~ 8 0
76 LEDA 520241 GiC 22 47 02.0 -45 59 50           ~ 3 0
77 LEDA 135448 G 22 47 02.5380020040 -45 52 12.404202600   16.79       ~ 5 0
78 LEDA 130819 G 22 47 08.247 -45 54 55.05   15.50       ~ 14 0
79 2MASX J22471035-4558170 GiC 22 47 10.356 -45 58 17.04           ~ 3 0
80 2MASX J22471274-4552270 GiC 22 47 12.7428151224 -45 52 26.998625496           ~ 2 0
81 [AVL99] J224925.5-514436.0 GiC 22 49 25.9753702737 -51 44 39.494303404           ~ 3 0
82 2MASX J22493103-5146557 GiC 22 49 31.0272510816 -51 46 55.827566436           ~ 3 0
83 2MASX J22493253-5144347 GiC 22 49 32.5374272592 -51 44 35.192872644           ~ 3 0
84 2MASX J22494202-5144419 GiC 22 49 41.9801625600 -51 44 42.260864028           ~ 4 0
85 ACO 3922 ClG 22 49 45.9 -51 47 34           ~ 8 0
86 [AVL99] J224955.0-514918.0 GiC 22 49 55.0 -51 49 18           ~ 1 0
87 2MASX J22495709-5149310 GiC 22 49 57.0887893296 -51 49 31.102547592           ~ 2 0
88 2MASX J22495753-5147490 GiC 22 49 57.5776905168 -51 47 48.811379640           ~ 2 0
89 2MASX J22495839-5148580 GiC 22 49 58.3548823896 -51 48 57.794526216           ~ 1 0
90 2MASX J22495871-5147310 GiC 22 49 58.6652264640 -51 47 30.807561300           ~ 2 0
91 2MASX J22500558-5134250 GiC 22 50 05.5786123080 -51 34 24.510312444           ~ 4 0
92 2MASX J22500603-5144069 GiC 22 50 06.0407388480 -51 44 07.486404720   16.35   15.24   ~ 6 0
93 2MASX J22504952-5144205 GiC 22 50 49.5202969968 -51 44 19.974881472           ~ 3 0
94 2dFGRS TGS266Z164 BiC 23 11 36.2439336552 -28 59 52.825989660   17.091   15.590   ~ 6 0
95 ACO S 1096 ClG 23 11 39.15 -29 06 40.8           ~ 12 0
96 LEDA 732627 EmG 23 12 17.6 -29 09 36   17.446   16.130   ~ 4 0
97 2MASX J23263813-2346033 GiC 23 26 38.1190261128 -23 46 03.651691728   17.34   15.91   ~ 4 0
98 ACO 2599 ClG 23 26 43.9 -23 50 53           ~ 21 0
99 2dFGRS TGS074Z224 GiC 23 26 45.1496207880 -23 56 56.496506388   18.119   16.840   ~ 3 0
100 LEDA 100687 G 23 26 49.4815892712 -23 51 17.510183172   17.179   15.766   ~ 5 0
101 2MASX J23271264-2344494 GiC 23 27 12.6675233400 -23 44 48.939021456           ~ 2 0
102 2MASX J23392173-4602350 GiC 23 39 21.6872132736 -46 02 34.928799648           ~ 2 0
103 2MASX J23392481-4603161 GiC 23 39 24.8236852464 -46 03 16.465710204   17.34   16.13   ~ 3 0
104 2MASX J23392854-4557520 GiC 23 39 28.550 -45 57 52.09           ~ 3 0
105 2MASX J23393038-4600550 GiC 23 39 30.3506354520 -46 00 55.476614592           ~ 2 0
106 2MASX J23393103-4553430 GiC 23 39 31.0631674248 -45 53 42.672828804   17.39   16.06   ~ 3 0
107 6dFGS gJ233937.4-460225 GiC 23 39 37.3485393684 -46 02 24.440303732   17.82   17.07   ~ 5 0
108 ACO S 1140 ClG 23 39 41.4 -45 58 31           ~ 6 0
109 LEDA 520285 GiC 23 39 51.7 -45 59 38           ~ 3 0
110 2MASX J23395353-4600112 GiC 23 39 53.5025625264 -46 00 10.950512724           ~ 2 0
111 2MASX J23395469-4600472 GiC 23 39 54.6817406304 -46 00 47.508202188           ~ 3 0
112 2MASX J23400082-4552332 GiC 23 40 00.7871815464 -45 52 33.549214764   16.68   15.43   ~ 4 0
113 2MASX J23401100-4559372 GiC 23 40 11.0488849584 -45 59 37.124383092   17.36   16.13   ~ 5 0
114 2MASX J23401605-4552032 GiC 23 40 16.0658869416 -45 52 02.738899344   17.30   16.02   ~ 5 0

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