2005AJ....129.2654W

Query : 2005AJ....129.2654W

2005AJ....129.2654W - Astron. J., 129, 2654-2662 (2005/June-0)

Radial velocities of newly discovered globular clusters in NGC 5128.

WOODLEY K.A., HARRIS W.E. and HARRIS G.L.H.

Abstract (from CDS):

We present radial velocity measurements for 74 globular clusters (GCs) in the nearby giant elliptical galaxy NGC 5128, of which 31 are newly discovered. All the GC candidates were taken from the list of possible new clusters given in the photometric survey of Harris and coworkers. In addition to the newly confirmed clusters, we identified 24 definite foreground stars and 31 probable background galaxies. From a combined list of 299 known GCs in NGC 5128 with measured radial velocities and metallicity-sensitive (C-T1) photometric indices, we construct a new metallicity distribution function (MDF) for the cluster system. The MDF shows an approximately bimodal form, with centroids at [Fe/H]=-1.46 and -0.53 and with nearly equal numbers of metal-poor and metal-rich clusters in the two modes. However, there are many intermediate-color clusters in the distribution, and the fainter clusters tend to have a higher proportion of redness. These features of the MDF may indicate a widespread age range within the cluster system, as well as an intrinsically broad metallicity spread.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Individual: NGC Number: NGC 5128 - Galaxy: Globular Clusters: General - Techniques: Radial Velocities

Nomenclature: Table 1: [WHH2005] NN (Nos 1-31).

Simbad objects: 85

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Number of rows : 85
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 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
2 [HHG2004] 36 * 13 24 02.5533213696 -42 49 29.708328648           ~ 4 0
3 [HGH2004] 201.01875-42.80449 G 13 24 04.50 -42 48 16.2           ~ 3 0
4 [HGH2004] 201.02286-42.79003 G 13 24 05.49 -42 47 24.1           ~ 3 0
5 [HGH2004] 201.05525-42.96170 GlC 13 24 13.26 -42 57 42.1           ~ 3 0
6 [BBP2008] AAT105959 G 13 24 23.98 -42 54 10.7 20.57 20.45 19.67 19.17 18.65 ~ 7 0
7 [BBP2008] AAT106695 G 13 24 28.15 -42 53 04.6 20.95 20.75 19.63 18.96 18.30 ~ 6 0
8 [BBP2008] HH-025 G 13 24 28.46 -43 14 56.3           ~ 4 0
9 [HGH2004] 201.12067-43.18285 * 13 24 28.9528854024 -43 10 58.263568536           ~ 3 0
10 [BBP2008] AAT107145 GlC 13 24 29.7004964496 -43 02 06.547016976 21.20 20.93 20.08 19.50 18.97 ~ 8 0
11 [HHG2004] 44 G 13 24 30.86 -42 52 40.8           ~ 5 0
12 [HGH2004] 201.13402-43.18247 GlC 13 24 32.16 -43 10 56.9 20.56 20.32 19.49 18.97 18.43 ~ 8 0
13 [HGH2004] 201.14325-42.95900 GlC 13 24 34.38 -42 57 32.4           ~ 3 0
14 [BBP2008] AAT107977 GlC 13 24 34.61 -43 12 50.5 21.73 21.18 20.18 19.57 18.89 ~ 6 0
15 [HGH2004] 201.14708-43.10427 GlC 13 24 35.30 -43 06 15.4           ~ 3 0
16 [HHG2004] 52 GlC 13 24 40.60 -43 13 18.0 20.71 20.12 19.12 18.50 17.85 ~ 8 0
17 [HGH2004] 201.18573-43.04646 GlC 13 24 44.575 -43 02 47.26 20.47 20.03 19.06 18.49 17.87 ~ 8 0
18 [HGH2004] 201.19737-42.96422 GlC 13 24 47.3626393224 -42 57 51.175545444 21.33 20.75 19.73 19.12 18.44 ~ 8 0
19 [HGH2004] 201.20297-42.87653 GlC 13 24 48.7083803784 -42 52 35.529153456           ~ 11 0
20 [HGH2004] 201.21712-43.14007 * 13 24 52.1049385848 -43 08 24.315247176           ~ 3 0
21 [HGH2004] 201.23526-43.10963 * 13 24 56.4576529680 -43 06 34.702338276           ~ 3 0
22 [HGH2004] 201.25455-42.80609 GlC 13 25 01.09 -42 48 21.9           ~ 3 0
23 [HGH2004] 201.25484-43.19973 GlC 13 25 01.16 -43 11 59.0           ~ 4 0
24 [HGH2004] 201.25537-42.90736 G 13 25 01.29 -42 54 26.5           ~ 3 0
25 [HGH2004] 201.26750-43.04147 * 13 25 04.20 -43 02 29.3           ~ 3 0
26 2MASS J13250501-4257152 GlC 13 25 05.0117682000 -42 57 15.261735132 18.96 18.39 17.41 16.81 16.19 ~ 11 0
27 [HHG2004] 18 GlC 13 25 07.62 -43 01 15.2 19.83 19.16 18.12 17.46 16.82 ~ 8 0
28 [HHG2004] 47 GlC 13 25 08.5064319792 -43 02 57.523546284 20.59 19.95 18.91 18.37 17.64 ~ 12 0
29 [HGH2004] 201.28580-43.12873 * 13 25 08.5837004664 -43 07 43.482661320           ~ 3 0
30 [HGH2004] 201.29193-43.12797 * 13 25 10.0570136256 -43 07 40.760931216           ~ 3 0
31 [HGH2004] 201.30348-42.94994 GlC 13 25 12.8298105120 -42 56 59.869930632 20.62 20.36 19.57 19.07 18.48 ~ 8 0
32 [HGH2004] 201.30934-43.12320 GlC 13 25 14.2360455192 -43 07 23.608131960 21.26 20.63 19.55 18.90 18.21 ~ 12 0
33 [HGH2004] 201.32411-43.21823 * 13 25 17.79 -43 13 05.6           ~ 3 0
34 [HGH2004] 201.32613-42.88467 GlC 13 25 18.2708414472 -42 53 04.786266696 20.36 20.00 19.07 18.47 17.97 ~ 7 0
35 [HHG2004] 65 GlC 13 25 21.29 -42 49 17.7 20.75 20.22 19.20 18.61 17.95 ~ 7 0
36 [BBP2008] AAT116025 GlC 13 25 23.4493586472 -42 53 26.184008256 21.23 20.88 20.00 19.48 18.85 ~ 7 0
37 [HGH2004] 201.35155-43.20640 * 13 25 24.37 -43 12 23.1           ~ 3 0
38 [HGH2004] 201.35458-43.20749 * 13 25 25.10 -43 12 27.0           ~ 3 0
39 [HGH2004] 201.35622-42.94199 GlC 13 25 25.4847997272 -42 56 31.252602156 20.99 20.83 20.06 19.56 19.05 ~ 10 0
40 [HHG2004] 108 GlC 13 25 25.7274117864 -43 05 16.616129424 20.88 20.70 19.88 19.39 18.86 ~ 14 0
41 [HGH2004] 201.36159-42.87775 GlC 13 25 26.7744394080 -42 52 39.909975060 20.73 20.56 19.81 19.36 18.87 ~ 9 0
42 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
43 [KKF2001] J132528.04-430402.81 GlC 13 25 27.9708458640 -43 04 02.237343060 20.90 20.23 19.18 18.56 17.90 ~ 17 0
44 [HGH2004] 201.36966-42.83675 GlC 13 25 28.7200496136 -42 50 12.320455308       19.36   ~ 6 0
45 [WHH2005] 17 GlC 13 25 29.41 -42 57 42.7 19.68 19.39 18.57 18.06 17.48 ~ 6 0
46 [HGH2004] 201.37531-42.94635 GlC 13 25 30.0697218360 -42 56 46.920259068 19.85 19.36 18.36 17.85 17.16 ~ 9 0
47 [HHG2004] 10 GlC 13 25 31.03 -42 50 14.9 18.47 18.16 17.29 16.78 16.24 ~ 8 0
48 [HGH2004] 201.39317-42.85164 GlC 13 25 34.36 -42 51 05.9 20.30 19.93 19.01 18.52 17.90 ~ 7 0
49 [HGH2004] 201.39676-43.20042 * 13 25 35.2229374755 -43 12 01.584034784 19.64 19.60 19.00 18.63 18.25 ~ 5 0
50 [HHG2004] 35 GlC 13 25 35.31 -43 05 29.0     18.63     ~ 10 0
51 [HGH2004] 201.40639-42.92596 GlC 13 25 37.53 -42 55 33.5           ~ 3 0
52 [HGH2004] 201.41515-43.06705 G 13 25 39.63 -43 04 01.4           ~ 3 0
53 [HGH2004] 201.42235-43.20349 G 13 25 41.37 -43 12 12.6           ~ 3 0
54 [HGH2004] 201.42761-43.17260 * 13 25 42.62 -43 10 21.4           ~ 3 0
55 [HGH2004] 201.44013-43.02097 G 13 25 45.63 -43 01 15.5           ~ 4 0
56 [HGH2004] 201.44127-42.95560 GlC 13 25 45.9015147936 -42 57 20.182619700 19.26 19.12 18.37 17.89 17.41 ~ 9 0
57 [HGH2004] 201.44165-42.94805 GlC 13 25 45.9960305544 -42 56 53.017724076 20.64 20.43 19.63 19.12 18.62 ~ 9 0
58 [HGH2004] 201.44994-43.01600 * 13 25 47.9910140664 -43 00 57.640156704           ~ 3 0
59 [HGH2004] 201.45525-43.03901 G 13 25 49.26 -43 02 20.4           ~ 3 0
60 [HGH2004] 201.45511-43.00060 G 13 25 49.33 -42 59 59.8           ~ 6 0
61 [HGH2004] 201.45813-43.04063 GlC 13 25 49.95 -43 02 26.3           ~ 3 0
62 [HGH2004] 201.45976-43.06896 GlC 13 25 50.3479376568 -43 04 08.350669812 21.33 20.93 19.97 19.42 18.83 ~ 10 0
63 [HGH2004] 201.48236-43.05026 * 13 25 55.7669940360 -43 03 00.964467432           ~ 3 0
64 [HGH2004] 201.48500-42.99369 * 13 25 56.3962585872 -42 59 37.307535864           ~ 3 0
65 [HGH2004] 201.48578-42.86295 GlC 13 25 56.59 -42 51 46.6 20.50 20.02 19.05 18.43 17.81 ~ 7 0
66 [HGH2004] 201.48596-42.97930 GlC 13 25 56.63 -42 58 45.5           ~ 3 0
67 [HGH2004] 201.48911-42.99680 * 13 25 57.3845178984 -42 59 48.511611024           ~ 3 0
68 2MASS J13255837-4255274 * 13 25 58.38 -42 55 27.5           ~ 3 0
69 [HGH2004] 201.49350-43.05179 * 13 25 58.4401758048 -43 03 06.460317324           ~ 3 0
70 [HHG2004] 110 G 13 26 02.23 -43 17 34.8           ~ 4 0
71 [HGH2004] 201.50931-43.14881 GlC 13 26 02.2319451384 -43 08 55.722929064 21.31 20.80 19.84 19.24 18.63 ~ 11 0
72 2MASS J13261042-4300535 * 13 26 10.43 -43 00 53.5           ~ 3 0
73 [HGH2004] 201.55341-43.15256 GlC 13 26 12.8149453440 -43 09 09.237617064 20.27 19.68 18.66 18.06 17.42 ~ 7 0
74 [HGH2004] 201.55910-43.14179 GlC 13 26 14.1790799544 -43 08 30.467785092 20.21 19.98 19.17 18.65 18.14 ~ 6 0
75 [HGH2004] 201.56421-42.96300 * 13 26 15.41 -42 57 46.8           ~ 3 0
76 [BBP2008] AAT125079 GlC 13 26 17.2687670952 -43 06 39.350864844 21.13 20.90 20.09 19.59 19.06 ~ 7 0
77 [HGH2004] 201.57422-43.00826 * 13 26 17.81 -43 00 29.7           ~ 3 0
78 [HGH2004] 201.58643-43.15366 * 13 26 20.7346480272 -43 09 13.194025884           ~ 4 0
79 [HGH2004] 201.58797-43.05227 * 13 26 21.11 -43 03 08.2           ~ 3 0
80 [GGH2006] N26 GlC 13 26 21.31 -42 57 19.1 21.36 20.86 19.92 19.35 18.76 ~ 9 0
81 [HGH2004] 201.59833-43.06219 GlC 13 26 23.5978333392 -43 03 43.924862916 20.56 20.25 19.38 18.83 18.30 ~ 7 0
82 [HGH2004] 201.59848-43.01266 GlC 13 26 23.66 -43 00 45.6 20.99 20.77 19.97 19.49 18.93 ~ 7 0
83 [HGH2004] 201.63663-43.04982 * 13 26 32.79 -43 02 59.4           ~ 3 0
84 [HGH2004] 201.63782-43.05389 * 13 26 33.08 -43 03 14.0           ~ 4 0
85 [HGH2004] 201.71018-42.84345 GlC 13 26 50.44 -42 50 36.4           ~ 3 0

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