2003MNRAS.345..949W

Query : 2003MNRAS.345..949W

2003MNRAS.345..949W - Mon. Not. R. Astron. Soc., 345, 949-959 (2003/November-1)

UBRI photometry of globular clusters in the Leo group galaxy NGC 3379.

WHITLOCK S., FORBES D.A. and BEASLEY M.A.

Abstract (from CDS):

We present wide-area UBRI photometry for globular clusters around the Leo group galaxy NGC 3379. Globular cluster candidates are selected from their B -band magnitudes and their (U -B)oversus (B -I)ocolours. A colour-colour selection region was defined from photometry of the Milky Way and M31 globular cluster systems. We detect 133 globular cluster candidates, which supports previous claims of a low specific frequency for NGC 3379.

The Milky Way and M31 reveal blue and red subpopulations, with (U -B)_ o_and (B -I)ocolours indicating mean metallicities similar to those expected based on previous spectroscopic work. The stellar population models of Maraston and Brocato et al. are consistent with both subpopulations being old, and with metallicities of [Fe/H]~-1.5 and -0.6 for the blue and red subpopulations, respectively. The models of Worthey do not reproduce the (U -B)ocolours of the red (metal-rich) subpopulation for any modelled age.

For NGC 3379 we detect a blue subpopulation with similar colours, and presumably age/metallicity, to that of the Milky Way and M31 globular cluster systems. The red subpopulation is less well defined, perhaps due to increased photometric errors, but indicates a mean metallicity of [Fe/H]~-0.6.


Abstract Copyright: 2003 RAS

Journal keyword(s): globular clusters: general - galaxies: individual: NGC 3379 - galaxies: star clusters

VizieR on-line data: <Available at CDS (J/MNRAS/345/949): tablea1.dat>

Nomenclature: Table A1: [WFB2003] NNN (Nos 1-133).

Simbad objects: 140

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Number of rows : 140
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
3 [WFB2003] 133 Gl? 10 47 31.44 +12 35 53.3   20.45       ~ 1 0
4 [WFB2003] 132 Gl? 10 47 31.83 +12 36 56.1   22.25       ~ 1 0
5 [WFB2003] 131 Gl? 10 47 32.27 +12 36 59.7   21.09       ~ 1 0
6 [WFB2003] 130 Gl? 10 47 32.63 +12 36 26.5   21.67       ~ 1 0
7 [WFB2003] 129 Gl? 10 47 33.51 +12 33 08.7   21.38       ~ 1 0
8 [WFB2003] 128 Gl? 10 47 33.62 +12 34 38.7   21.33       ~ 1 0
9 [WFB2003] 127 Gl? 10 47 33.83 +12 34 43.9   22.53       ~ 1 0
10 [WFB2003] 126 Gl? 10 47 34.01 +12 33 27.8   20.29       ~ 1 0
11 [WFB2003] 125 Gl? 10 47 35.35 +12 38 47.7   21.81       ~ 1 0
12 [WFB2003] 124 Gl? 10 47 35.89 +12 30 45.1   22.03       ~ 1 0
13 [WFB2003] 123 Gl? 10 47 36.05 +12 39 12.2   21.22       ~ 1 0
14 [WFB2003] 122 Gl? 10 47 36.06 +12 35 53.0   22.23       ~ 1 0
15 [WFB2003] 121 Gl? 10 47 36.35 +12 34 41.3   20.35       ~ 1 0
16 [WFB2003] 120 Gl? 10 47 36.91 +12 37 21.0   20.93       ~ 1 0
17 [WFB2003] 119 Gl? 10 47 37.14 +12 35 21.8   22.03       ~ 1 0
18 [WFB2003] 118 Gl? 10 47 37.34 +12 36 02.5   21.96       ~ 1 0
19 [WFB2003] 117 Gl? 10 47 37.49 +12 38 56.7   22.77       ~ 1 0
20 [WFB2003] 116 Gl? 10 47 37.66 +12 34 14.8   21.82       ~ 1 0
21 [WFB2003] 115 Gl? 10 47 37.76 +12 33 33.4   21.07       ~ 1 0
22 [WFB2003] 114 Gl? 10 47 37.84 +12 31 04.9   22.70       ~ 1 0
23 [WFB2003] 113 * 10 47 38.21 +12 39 28.2   21.08 20.39 20.00   ~ 2 0
24 [WFB2003] 112 Gl? 10 47 38.28 +12 35 10.6   22.44       ~ 1 0
25 [WFB2003] 111 Gl? 10 47 38.31 +12 31 53.2   21.44       ~ 1 0
26 [WFB2003] 110 Gl? 10 47 38.60 +12 35 57.0   22.42       ~ 1 0
27 [WFB2003] 109 Gl? 10 47 38.89 +12 39 38.3   22.50       ~ 1 0
28 [WFB2003] 108 Gl? 10 47 38.98 +12 35 26.5   22.68       ~ 1 0
29 [WFB2003] 107 Gl? 10 47 39.01 +12 36 45.9   22.61 21.78 21.31   ~ 2 0
30 [WFB2003] 106 Gl? 10 47 39.24 +12 35 01.3   22.95       ~ 1 0
31 [WFB2003] 105 Gl? 10 47 39.24 +12 35 35.5   21.91       ~ 1 0
32 [WFB2003] 104 Gl? 10 47 39.32 +12 39 42.3   22.14       ~ 1 0
33 [WFB2003] 103 Gl? 10 47 39.33 +12 30 53.4   21.90       ~ 1 0
34 [WFB2003] 102 Gl? 10 47 39.44 +12 39 37.6   22.26       ~ 1 0
35 [WFB2003] 101 Gl? 10 47 39.47 +12 35 37.2   21.75       ~ 1 0
36 [WFB2003] 100 Gl? 10 47 39.70 +12 32 26.1   20.76       ~ 1 0
37 [WFB2003] 099 Gl? 10 47 39.71 +12 33 58.8   22.17       ~ 1 0
38 [WFB2003] 098 Gl? 10 47 40.03 +12 34 36.0   22.83       ~ 1 0
39 [WFB2003] 097 Gl? 10 47 40.51 +12 37 22.4   22.50 21.81 21.38   ~ 2 0
40 [PKT2004] 3379m1GC33 GlC 10 47 40.60 +12 35 53.8   20.91 20.25 19.87   ~ 4 0
41 [WFB2003] 095 Gl? 10 47 40.61 +12 35 22.1   20.60       ~ 1 0
42 [WFB2003] 094 Gl? 10 47 40.61 +12 38 57.9   19.93       ~ 1 0
43 [WFB2003] 093 Gl? 10 47 40.73 +12 32 17.4   19.70       ~ 1 0
44 [WFB2003] 092 * 10 47 40.80 +12 39 42.8   22.15 21.14 20.66   ~ 2 0
45 [WFB2003] 091 Gl? 10 47 40.82 +12 34 05.1   22.47       ~ 1 0
46 [WFB2003] 090 Gl? 10 47 40.91 +12 31 37.5   22.08       ~ 1 0
47 [WFB2003] 089 Gl? 10 47 41.30 +12 36 50.8   22.87       ~ 1 0
48 [WFB2003] 088 Gl? 10 47 41.84 +12 35 40.7   22.26       ~ 1 0
49 [WFB2003] 087 Gl? 10 47 42.11 +12 36 10.1   22.72 21.97 21.40   ~ 2 0
50 [WFB2003] 086 Gl? 10 47 42.14 +12 35 08.6   22.62       ~ 1 0
51 [WFB2003] 085 Gl? 10 47 42.25 +12 34 47.5   22.49       ~ 1 0
52 [WFB2003] 084 Gl? 10 47 43.34 +12 36 46.4   22.37 21.53 21.07   ~ 2 0
53 [WFB2003] 083 Gl? 10 47 43.55 +12 37 04.2   22.34       ~ 1 0
54 [WFB2003] 082 Gl? 10 47 43.67 +12 33 34.2   22.30 21.76 21.41   ~ 2 0
55 [WFB2003] 081 Gl? 10 47 43.76 +12 30 46.0   20.18       ~ 1 0
56 [WFB2003] 080 Gl? 10 47 45.19 +12 39 57.8   21.72 21.10 20.80   ~ 2 0
57 [WFB2003] 079 Gl? 10 47 45.44 +12 31 33.2   21.80       ~ 1 0
58 [WFB2003] 078 Gl? 10 47 45.54 +12 40 09.0   21.32       ~ 1 0
59 [WFB2003] 077 Gl? 10 47 45.65 +12 34 51.9   22.00       ~ 1 0
60 [WFB2003] 076 Gl? 10 47 45.79 +12 34 48.4   21.99       ~ 1 0
61 [WFB2003] 075 Gl? 10 47 46.22 +12 38 49.4   20.61       ~ 1 0
62 [WFB2003] 074 Gl? 10 47 46.30 +12 31 20.0   21.91 21.14 20.72   ~ 2 0
63 [WFB2003] 073 Gl? 10 47 46.48 +12 32 34.6   22.50       ~ 1 0
64 [WFB2003] 072 Gl? 10 47 46.78 +12 31 37.4   22.34       ~ 1 0
65 [WFB2003] 071 Gl? 10 47 46.85 +12 36 52.4   22.21       ~ 1 0
66 [WFB2003] 070 GlC 10 47 47.30 +12 34 05.5   22.67 21.98 21.52   ~ 2 0
67 [WFB2003] 069 Gl? 10 47 47.40 +12 37 19.0   22.63       ~ 1 0
68 [PBF2006] g2122 GlC 10 47 47.70 +12 34 14.8   21.96 21.11 20.52   ~ 3 0
69 [WFB2003] 068 Gl? 10 47 47.78 +12 36 41.2   21.90       ~ 1 0
70 [WFB2003] 066 Gl? 10 47 47.87 +12 35 05.2   21.54       ~ 1 0
71 [PKT2004] 3379m1GC30 Gl? 10 47 47.90 +12 36 22.8   22.79 22.26     ~ 2 0
72 [WFB2003] 064 Gl? 10 47 47.91 +12 34 38.7   22.34       ~ 1 0
73 [WFB2003] 063 Gl? 10 47 48.00 +12 35 07.8   21.67       ~ 1 0
74 [PKT2004] 3379m1GC27 GlC 10 47 48.20 +12 35 45.1   21.69 20.94 20.45   ~ 4 0
75 [WFB2003] 061 Gl? 10 47 48.59 +12 35 32.4   21.15       ~ 1 0
76 [WFB2003] 060 Gl? 10 47 48.60 +12 37 03.8   21.77       ~ 1 0
77 [WFB2003] 059 Gl? 10 47 48.96 +12 35 23.1   21.66       ~ 1 0
78 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
79 [WFB2003] 058 Gl? 10 47 49.66 +12 34 11.2   22.24       ~ 1 0
80 [PKT2004] 3379m1GC18 Gl? 10 47 49.67 +12 34 33.6   20.11 19.46     ~ 2 0
81 [WFB2003] 056 Gl? 10 47 50.10 +12 31 06.7   22.76       ~ 1 0
82 [WFB2003] 055 Gl? 10 47 50.26 +12 32 22.9   22.41       ~ 1 0
83 [PBF2006] g1617 GlC 10 47 50.40 +12 33 47.8   22.04 21.36 20.86   ~ 4 0
84 [WFB2003] 053 Gl? 10 47 50.43 +12 34 37.8   21.83       ~ 2 1
85 [WFB2003] 052 Gl? 10 47 50.47 +12 35 19.6   22.44       ~ 1 0
86 [PKT2004] 3379m1GC23 Gl? 10 47 50.56 +12 35 32.4   21.35 21.11     ~ 3 0
87 [PKT2004] 3379m1GC22 Gl? 10 47 50.68 +12 35 30.1   21.31 21.43     ~ 2 0
88 [WFB2003] 049 Gl? 10 47 50.75 +12 30 22.7   22.17       ~ 1 0
89 [PKT2004] 3379m1GC24 GlC 10 47 50.99 +12 35 49.8   20.72 20.00 19.48   ~ 4 1
90 [WFB2003] 047 Gl? 10 47 51.37 +12 40 08.9   22.73       ~ 1 0
91 [WFB2003] 046 Gl? 10 47 51.71 +12 32 52.1   22.89       ~ 1 0
92 [WFB2003] 045 GlC 10 47 52.46 +12 36 00.5   22.24 21.27 20.68   ~ 2 0
93 [WFB2003] 044 Gl? 10 47 53.29 +12 35 05.8   22.53       ~ 1 0
94 [PKT2004] 3379m1GC13 GlC 10 47 53.32 +12 34 14.2   22.64 21.83 21.39   ~ 3 0
95 [WFB2003] 042 Gl? 10 47 53.48 +12 34 55.7   21.67       ~ 1 0
96 [PKT2004] 3379m1GC11 Gl? 10 47 53.74 +12 33 48.3   22.16 21.51 20.99   ~ 3 0
97 [WFB2003] 040 Gl? 10 47 53.75 +12 32 56.4   20.89       ~ 1 0
98 [WFB2003] 039 Gl? 10 47 53.81 +12 31 09.0   20.28       ~ 1 0
99 [WFB2003] 038 Gl? 10 47 53.91 +12 34 54.3   22.66       ~ 1 0
100 [PBF2006] g1078 GlC 10 47 54.20 +12 36 31.9   21.69 20.97 20.47   ~ 3 0
101 [WFB2003] 036 Gl? 10 47 54.21 +12 38 36.9   22.78       ~ 1 0
102 [WFB2003] 035 Gl? 10 47 55.13 +12 32 05.3   21.69       ~ 1 0
103 [WFB2003] 034 Gl? 10 47 55.16 +12 30 21.8   20.53       ~ 1 0
104 [WFB2003] 033 Gl? 10 47 55.19 +12 30 37.2   22.76       ~ 1 0
105 [WFB2003] 032 Gl? 10 47 56.51 +12 32 09.4   22.37       ~ 1 0
106 [PKT2004] 3379m1GC09 GlC 10 47 56.56 +12 33 29.1   21.10 20.47 19.99   ~ 3 0
107 [WFB2003] 030 Gl? 10 47 57.64 +12 34 29.4   22.84       ~ 1 0
108 [WFB2003] 029 Gl? 10 47 57.68 +12 32 08.5   22.25       ~ 1 0
109 [WFB2003] 028 Gl? 10 47 58.29 +12 39 34.8   22.38       ~ 1 0
110 [WFB2003] 027 Gl? 10 47 58.61 +12 33 57.3   22.50       ~ 1 0
111 [WFB2003] 026 Gl? 10 48 00.28 +12 32 50.6   21.67       ~ 1 0
112 [WFB2003] 025 Gl? 10 48 00.57 +12 33 41.9   23.00       ~ 1 0
113 [WFB2003] 024 Gl? 10 48 00.74 +12 39 26.2   21.55       ~ 1 0
114 [WFB2003] 023 Gl? 10 48 01.01 +12 34 16.7   22.89       ~ 1 0
115 [WFB2003] 022 Gl? 10 48 01.23 +12 34 20.8   22.80       ~ 1 0
116 [WFB2003] 021 Gl? 10 48 01.59 +12 32 39.2   22.60       ~ 1 0
117 [WFB2003] 020 Gl? 10 48 01.68 +12 35 59.7   21.66       ~ 1 0
118 [WFB2003] 019 Gl? 10 48 01.77 +12 32 48.3   22.02       ~ 1 0
119 [WFB2003] 018 Gl? 10 48 02.40 +12 39 12.8   22.95       ~ 1 0
120 [WFB2003] 017 Gl? 10 48 03.17 +12 34 36.5   20.66       ~ 1 0
121 [WFB2003] 016 Gl? 10 48 03.19 +12 38 56.0   22.69       ~ 1 0
122 [WFB2003] 015 Gl? 10 48 04.09 +12 38 36.9   20.85       ~ 1 0
123 [WFB2003] 014 Gl? 10 48 04.33 +12 35 41.5   22.69       ~ 1 0
124 [WFB2003] 013 Gl? 10 48 04.44 +12 34 12.4   21.67       ~ 1 0
125 [WFB2003] 012 Gl? 10 48 04.74 +12 38 16.4   23.00       ~ 1 0
126 [WFB2003] 011 Gl? 10 48 05.22 +12 36 48.9   21.62       ~ 1 0
127 [WFB2003] 010 Gl? 10 48 05.28 +12 33 08.0   21.56       ~ 1 0
128 [WFB2003] 009 Gl? 10 48 05.61 +12 37 15.6   22.98       ~ 1 0
129 [WFB2003] 008 Gl? 10 48 05.74 +12 34 17.0   21.65       ~ 1 0
130 [WFB2003] 007 Gl? 10 48 06.35 +12 35 33.9   22.66       ~ 1 0
131 [WFB2003] 006 Gl? 10 48 06.36 +12 36 10.7   22.58       ~ 1 0
132 [WFB2003] 005 Gl? 10 48 06.50 +12 37 57.6   21.68       ~ 1 0
133 [WFB2003] 004 Gl? 10 48 10.04 +12 35 09.4   21.66       ~ 1 0
134 [WFB2003] 003 Gl? 10 48 10.99 +12 33 50.1   21.29       ~ 1 0
135 [WFB2003] 002 Gl? 10 48 11.22 +12 35 42.4   22.30       ~ 1 0
136 [WFB2003] 001 Gl? 10 48 11.36 +12 34 32.1   20.17       ~ 1 0
137 NGC 3384 GiG 10 48 16.8855574392 +12 37 45.371165844   10.0       ~ 617 1
138 NGC 3389 GiG 10 48 27.9084984144 +12 31 59.659616244   12.0       ~ 244 2
139 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
140 NAME Local Group GrG ~ ~           ~ 9325 0

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