1997A&A...324..505D

Query : 1997A&A...324..505D

1997A&A...324..505D - Astronomy and Astrophysics, volume 324, 505-522 (1997/8-2)

Core velocity dispersions for 25 Galactic and 10 old Magellanic globular clusters.

DUBATH P., MEYLAN G. and MAYOR M.

Abstract (from CDS):

We present, for 25 Galactic and 10 old Magellanic globular clusters, projected velocity dispersion (σp) measurements obtained by applying a cross-correlation technique to integrated-light spectra. In order to understand and estimate the statistical errors of these measurements due to small numbers of bright stars dominating the integrated light, we provide an extensive discussion based on detailed numerical simulations. These errors are smaller if the integration area is larger and/or the cluster concentration higher. The simulations show that measurements are reliable when the integrated light within the integration area is brighter than a given magnitude. The statistical errors on the σp measurements of Magellanic globular clusters are small because of a physically large integration area, whereas they can be important for measurements carried out over small central areas in Galactic clusters. The present observational results are used to outline a few characteristics of the globular cluster fundamental plane. In this respect, the old Magellanic globular clusters appear similar to the Galactic clusters.

Abstract Copyright: ∼

Journal keyword(s): (Galaxy:) globular clusters: general - stars: kinematics - techniques: radial velocities - galaxies: star clusters - Magellanic Clouds

VizieR on-line data: <Available at CDS (J/A+A/324/505): table67>

Simbad objects: 77

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Number of rows : 77
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 3917 0
2 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 311 0
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11149 1
4 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1085 0
5 NGC 419 OpC 01 08 17.26 -72 53 01.8 11.41 11.16 10.50   9.34 ~ 272 0
6 NGC 1466 GlC 03 44 32.71 -71 40 18.0   11.6 11.59     ~ 162 0
7 HD 23798 Pe* 03 46 45.7220393712 -30 51 13.333194972   9.35 8.32     G8/K1(III)wF0/3 70 0
8 HD 24418 PM* 03 47 39.3832728600 -70 55 18.601210236   9.77 9.10     G6wF7V 22 0
9 NGC 1754 Cl* 04 54 18.080 -70 26 32.58   12.32 11.57     ~ 93 0
10 NGC 1786 Cl* 04 59 07.470 -67 44 45.44   10.1       ~ 146 0
11 NGC 1835 Cl* 05 05 09.210 -69 24 20.96   11.314 10.596     ~ 166 0
12 HD 33771 Pe* 05 10 49.6205389584 -37 49 03.118183140   10.19 9.41     G6/8w(F) 42 0
13 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1430 0
14 NGC 1916 Cl* 05 18 37.87 -69 24 22.9   11.16 10.38     ~ 91 0
15 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
16 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 817 0
17 NGC 2005 Cl* 05 30 08.500 -69 45 14.42   12.30 11.57     ~ 94 0
18 NGC 2019 Cl* 05 31 56.48 -70 09 32.5   10.9 10.86     ~ 122 0
19 HD 37828 Pe* 05 40 54.6448450584 -11 12 00.189470088   7.988 6.869     G8III 101 0
20 HD 38893 Pe* 05 44 09.1097021808 -65 06 07.046257788   10.20 9.58     G3wF5 32 0
21 NGC 2210 GlC 06 11 31.296 -69 07 17.04   10.9 10.94     ~ 187 0
22 CPD-23 2731 ** 07 44 17.7834218784 -23 54 31.966077168   10.46 10.35 10.41   ~ 16 1
23 NGC 2447 4 * 07 44 19.8869329416 -23 52 34.324061700   11.22 10.43     ~ 22 0
24 CPD-23 2764 * 07 44 33.6559676712 -23 51 42.125907528   10.46 9.38     ~ 29 0
25 NGC 2447 OpC 07 44 33.8 -23 51 11           ~ 149 1
26 CPD-23 2778 * 07 44 42.6420010248 -23 50 55.835038392   11.01 10.09     ~ 18 0
27 CD-23 6102 * 07 44 50.2512648336 -23 52 27.129050472   10.78 9.96     ~ 31 0
28 CD-23 6099 * 07 44 51.2943196512 -23 49 39.002026080   11.31 10.210     ~ 18 0
29 NGC 2506 OpC 08 00 02.4 -10 46 23   8.28 7.6     ~ 276 0
30 NGC 2506 1229 * 08 00 07.4183658216 -10 44 26.562429744   14.132 13.161     ~ 10 0
31 NGC 2506 2364 RB? 08 00 12.2660288784 -10 48 45.218433168   13.93 13.040     ~ 14 0
32 NGC 2682 84 HB* 08 51 12.6931158192 +11 52 42.446745336   11.629 10.393 10.234 9.500 K1III 134 0
33 NGC 2682 141 HB* 08 51 22.8036640800 +11 48 01.779545736   11.570 10.346 10.180 9.40 ~ 148 0
34 NGC 2682 OpC 08 51 23.0 +11 48 50           ~ 2342 0
35 NGC 2682 151 RG* 08 51 26.1833544456 +11 53 51.981683748   11.58 10.391     K1III 111 0
36 NGC 2682 266 RG* 08 51 59.5227693496 +11 55 04.835590251   11.65 10.463   9.490 ~ 100 0
37 HD 83212 Pe* 09 36 19.9521173088 -20 53 14.747509716   9.582 9.177 7.83   G6/K0IIIwF7 132 0
38 HD 93529 Pe* 10 47 29.0132337552 -25 26 14.585676108   10.08 9.31 8.92   G6/8w 61 0
39 Cl Hogg 11 OpC 11 11 32 -60 22.3   8.21 8.1     ~ 33 0
40 HD 103295 PM* 11 53 37.0223993880 -28 38 13.022798676   10.34 9.56     G5/6III 46 0
41 * c Vir RG* 12 20 20.9813922197 +03 18 45.255217001 7.27 6.12 4.96 4.07 3.46 K0.5IIIbFe-0.5 360 0
42 HD 111417 PM* 12 49 31.8160312440 -45 49 32.818769472   9.72 8.28     K3III 23 0
43 NGC 4833 GlC 12 59 33.92 -70 52 35.4           ~ 425 0
44 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2479 0
45 NGC 5286 GlC 13 46 26.81 -51 22 27.3           ~ 443 0
46 HD 126053 PM* 14 23 15.2847745835 +01 14 29.641269692 6.98 6.90 6.27 5.71 5.39 G1.5V 408 0
47 NGC 5694 GlC 14 39 36.52 -26 32 18.0           ~ 301 0
48 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 408 0
49 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 1978 0
50 * 5 Ser Ro* 15 19 18.7974409923 +01 45 55.466382064   5.60   4.8   F8IV 340 0
51 NGC 5946 GlC 15 35 28.58 -50 39 35.0           ~ 194 0
52 * kap Her A * 16 08 04.5256427568 +17 02 49.119104724   5.927 4.994     G7III 138 0
53 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 716 0
54 NGC 6256 GlC 16 59 32.68 -37 07 17.1           ~ 153 0
55 M 62 GlC 17 01 12.60 -30 06 44.5           ~ 620 0
56 NGC 6284 GlC 17 04 28.747 -24 45 51.22   10.72 7.43     ~ 278 0
57 NGC 6293 GlC 17 10 10.42 -26 34 54.2           ~ 281 0
58 NGC 6325 GlC 17 17 59.27 -23 45 57.7           ~ 171 0
59 NGC 6342 GlC 17 21 10.14 -19 35 14.7     10.01     ~ 286 0
60 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 1976 0
61 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 884 0
62 NGC 6522 GlC 18 03 34.08 -30 02 02.3           ~ 524 0
63 NGC 6558 GlC 18 10 17.6 -31 45 50           ~ 225 0
64 HD 171391 PM* 18 35 02.3926287840 -10 58 37.942910580   6.027 5.119     G8II/III 133 0
65 M 70 GlC 18 43 12.76 -32 17 31.6           ~ 386 0
66 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2001 0
67 * b Aql PM* 19 24 58.1999714302 +11 56 39.888480530 6.35 5.93   4.7   G7IVHdel1 490 0
68 * omi Aql PM* 19 51 01.6436960928 +10 24 56.592457524   5.66   4.8   F8V 455 0
69 HD 193231 ** 20 21 38.35784 -54 48 45.1134           G5V 27 0
70 HD 196983 * 20 41 50.5031548608 -33 53 16.931609520   10.25 9.08     K1III 24 0
71 * 33 Cap PM* 21 24 09.5931989472 -20 51 06.731650296   6.535 5.366     K0III 115 0
72 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3140 0
73 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1049 0
74 HD 219509 PM* 23 17 20.8071449381 -66 55 09.534397862   9.79 8.70     K3.5V 64 1
75 HD 223311 V* 23 48 32.4794141016 -06 22 49.524743316   7.526 6.069     K2/3III 57 0
76 * gam01 Oct PM* 23 52 06.4731826440 -82 01 07.763587140   6.043 5.106     G6/8III 57 0
77 NGC 4833 177 * ~ ~   14.68 13.71     ~ 3 0

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