2015AJ....149..139D

Query : 2015AJ....149..139D

2015AJ....149..139D - Astron. J., 149, 139 (2015/April-0)

A search for intergalactic globular clusters in the Local Group.

DI TULLIO ZINN G. and ZINN R.

Abstract (from CDS):

The whole Sloan Digital Sky Survey (SDSS, 14,555 deg2) has been searched for intergalactic globular clusters (IGCs) in the Local Group (LG). Using optical, infrared, and ultraviolet photometric selection criteria and photometric redshifts, the 2.1 x 108 objects in the SDSS Galaxy Catalog were reduced to only 183,791 brighter than r0 = 19 that might be GCs. Visual examination of their SDSS images recovered 84% of the confirmed GCs in M31 and M33 and yielded 17 new GC candidates, 5 of them of high confidence, which we could confirm as GCs in MegaPrime images from the Canada-France-Hawaii Telescope. These 5 GCs are within M31's halo, but the other 12 candidates are not close to LG galaxies or galaxies within 3 Mpc of the LG. Even though this search covers only one-third of the sky and some GCs could have been missed, it suggests that the LG does not contain a large population of IGCs more luminous than MV ∼ -6 . In the direction of the M81 Group, the search yielded five candidate GCs, probable members of that group.

Abstract Copyright: ∼

Journal keyword(s): galaxies: groups: general - galaxies: individual: M31 - globular clusters: general - Local Group

Nomenclature: Tables 1-2: [DZ2015] NN (Nos 1-22). Table 3: [DZ2015] CNN (Nos C01-C12). Table 4: [DZ2015] M81-CN (Nos C1-C5).

CDS comments: Objects in Figure 1 are not in Simbad.

Simbad objects: 119

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Number of rows : 119
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 [DZ2014] A GlC 00 20 33.8910473568 +36 39 34.432123392           ~ 2 0
3 NAME PA-17 GlC 00 26 52.2026124624 +38 44 58.106513112           ~ 14 0
4 NAME PA-21 GlC 00 31 27.5221700304 +39 32 21.873211836           ~ 9 0
5 [SD2009] GC7 GlC 00 32 22.20 +48 31 27.5     17.4 16.6   ~ 7 0
6 [SD2009] GCC6 ? 00 32 22.90 +48 25 48.9     17.4 16.4   ~ 3 0
7 [VFH2013] PA-N147-1 GlC 00 32 35.30 +48 19 48.0           ~ 7 0
8 [VFH2013] SD-GC10 GlC 00 32 47.20 +48 32 10.7           ~ 2 0
9 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
10 [H76b] 1 GlC 00 33 12.20 +48 30 32.3   18.46 17.66     ~ 5 0
11 [H76b] 2 GlC 00 33 13.60 +48 28 48.7     18.38     ~ 7 0
12 [H76b] 3 GlC 00 33 15.20 +48 27 23.1   17.62 16.98     ~ 10 0
13 [VFH2013] PA-N147-2 GlC 00 33 43.30 +48 38 45.0           ~ 6 0
14 [VFH2013] PA-N147-3 GlC 00 34 10.00 +49 02 39.0           ~ 3 0
15 NAME Cassiopeia III G 00 35 59.4 +51 33 35           ~ 59 0
16 [DZ2013] SDSS1 GlC 00 36 01.8 +40 29 50           ~ 3 0
17 [DZ2015] 5 GlC 00 36 08.6011314552 +39 17 29.871660192           ~ 10 0
18 [DZ2015] 6 GlC 00 37 55.89 +41 18 33.6           ~ 1 0
19 NAME PA-N185 GlC 00 38 18.80 +48 22 04.0           ~ 3 0
20 [DZ2014] E GlC 00 38 27.559 +40 39 30.05           ~ 2 0
21 [DZ2015] 8 GlC 00 38 31.95 +39 52 06.8           ~ 1 0
22 FJJ NGC 185 I GlC 00 38 42.70 +48 18 40.4 19.4 19.2 18.4     ~ 9 0
23 FJJ NGC 185 II GlC 00 38 48.1 +48 18 15     19.7     ~ 9 0
24 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
25 [DZ2015] 9 GlC 00 39 00.74 +41 13 48.9           ~ 1 0
26 FJJ NGC 185 III GlC 00 39 03.80 +48 19 57.5 17.8 17.7 16.8     ~ 10 0
27 FJJ NGC 185 IV GlC 00 39 12.20 +48 22 48.2 19.75 19.7 19.0     ~ 10 0
28 [DZ2013] SDSS3 GlC 00 39 13.1 +41 42 08           ~ 3 0
29 FJJ NGC 185 V GlC 00 39 13.40 +48 23 04.9   17.4 16.7     ~ 10 0
30 FJJ NGC 185 VII GlC 00 39 18.40 +48 23 03.6   19.9 18.9     ~ 8 0
31 FJJ NGC 185 VIII GlC 00 39 23.70 +48 18 45.1           ~ 7 0
32 Bol 317 GlC 00 39 55.2775066416 +41 47 46.068542520 17.580 17.304 16.573 16.130 15.713 ~ 51 0
33 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
34 Bol 9 GlC 00 40 30.6999535344 +41 36 55.732742820 17.540 17.630 16.920 16.420 15.870 ~ 51 0
35 Bol 11 GlC 00 40 31.8784227360 +41 39 17.046655128 17.590 17.390 16.578 16.100 15.564 ~ 58 0
36 Bol 20 GlC 00 40 55.26 +41 41 25.3 15.980 15.743 14.910 14.367 13.650 ~ 62 0
37 [DZ2015] 11 GlC 00 41 18.0 +42 46 16           ~ 4 0
38 [DZ2013] SDSS6 GlC 00 42 27.6 +39 55 28           ~ 3 0
39 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
40 [HTF2008] HEC8 GlC 00 45 26.89 +40 13 47.2     19.19   17.91 ~ 9 0
41 [DZ2015] 13 GlC 00 45 43.97 +42 39 24.3           ~ 1 0
42 [DZ2015] 14 GlC 00 46 23.71 +42 36 34.6           ~ 1 0
43 Bol 407 GlC 00 50 09.9648082056 +41 41 01.034928888 17.630 16.953 16.053 15.400 14.830 ~ 59 0
44 PAndAS-39 GlC 00 50 36.3416171112 +42 31 49.679915952           ~ 4 0
45 Bol 520 GlC 00 50 42.4580241563 +32 54 58.623459583     15.50     ~ 53 1
46 NAME PA-41 GlC 00 53 39.6 +42 35 15           ~ 9 0
47 [DZ2015] C01 GlC 00 54 27.26 +04 11 01.4           ~ 2 0
48 [HTF2008] HEC11 GlC 00 55 17.28 +38 51 02.9     17.69   16.69 ~ 15 0
49 NAME PA-46 GlC 00 58 56.3882151768 +42 27 38.212495560           ~ 11 0
50 Bol 517 GlC 00 59 59.9204410440 +41 54 06.341494140     16.08     ~ 14 0
51 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
52 [DZ2015] C02 GlC 01 09 22.74 -05 54 57.5           ~ 2 0
53 NAME PA-52 GlC 01 12 47.0085879864 +42 25 24.737438460           ~ 8 0
54 NAME PA-56 GlC 01 23 03.5276536632 +41 55 10.952416920           ~ 15 0
55 NAME PA-57 GlC 01 27 47.6 +40 40 48           ~ 9 0
56 [DZ2014] G GlC 01 28 49.148 +47 04 21.98           ~ 5 0
57 NAME PA-58 GlC 01 29 02.2 +40 47 00           ~ 9 0
58 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
59 [DZ2015] C03 GlC 02 05 30.41 +06 46 41.1           ~ 2 0
60 [DZ2015] C04 GlC 02 30 35.906 +46 19 11.86           ~ 2 0
61 NAME Fornax H1 Cl* 02 37 02.1 -34 11 00     16.59     ~ 107 0
62 NAME Fornax H2 GlC 02 38 44.24 -34 48 30.5   14.5       ~ 93 0
63 NAME Fornax H3 GlC 02 39 48.16 -34 15 28.6   13.59       ~ 131 0
64 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
65 NAME Fornax H4 GlC 02 40 07.697 -34 32 10.59   15.18 13.91 14.08   ~ 112 0
66 NAME Fornax H5 GlC 02 42 21.111 -34 06 05.80   14.5       ~ 101 0
67 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
68 NAME Andromeda XXXIII G 03 01 23.6 +40 59 18           ~ 43 0
69 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
70 NAME E 1 GlC 03 55 02.5 -49 36 52           ~ 229 0
71 [DZ2015] C05 GlC 06 48 36.48 -18 23 19.7           ~ 2 0
72 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
73 Koposov 2 GlC 07 58 17.00 +26 15 19.4           ~ 85 1
74 [DZ2015] C06 GlC 08 03 29.32 +13 04 38.3           ~ 2 0
75 [DZ2015] M81-C1 GlC 09 52 25.93 +68 48 25.6           ~ 1 0
76 [PR95] 90262 ? 09 52 26.257 +68 48 26.36   20.37 19.60     ~ 2 0
77 SDSS J095320.17+693916.3 GlC 09 53 20.1697775952 +69 39 16.399488492           ~ 8 0
78 SDSS J095326.22+693117.5 GlC 09 53 26.2111161144 +69 31 17.432509728           ~ 5 0
79 [DZ2015] M81-C2 GlC 09 54 17.00 +68 55 21.9           ~ 1 0
80 [PR95] 50016 ? 09 54 17.104 +68 55 21.93   18.83 18.15     ~ 2 0
81 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
82 [PR95] 50777 GlC 09 55 21.8839591800 +69 06 37.632821616   17.79 16.92   15.77 ~ 12 0
83 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
84 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
85 [DZ2015] M81-C3 GlC 09 58 05.57 +69 34 46.1           ~ 1 0
86 NGC 3077 GiP 10 03 19.0965510921 +68 44 01.556166166 11.23 10.85 10.14 9.74   ~ 808 0
87 [DZ2015] M81-C4 GlC 10 05 17.19 +68 46 32.6           ~ 1 0
88 [DZ2015] C07 GlC 10 09 37.01 +61 15 58.4           ~ 2 0
89 [DZ2015] M81-C5 GlC 10 32 41.90 +65 42 34.7           ~ 1 0
90 LEDA 31286 G 10 34 31.9 +66 00 42   16.7       ~ 52 1
91 ACO 1185 ClG 11 10 32.15 +28 35 50.4           ~ 271 1
92 NGC 3561 LIN 11 11 13.1887412409 +28 41 47.044176908   14.7       ~ 202 2
93 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 379 1
94 NAME Crater Cluster GlC 11 36 16.20 -10 52 38.8           ~ 117 1
95 Koposov 1 GlC 11 59 18.40 +12 15 35.8           ~ 81 0
96 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
97 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
98 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
99 ACO 1955 ClG 14 44 01.14 -04 31 40.1           ~ 6 0
100 [DZ2015] C08 GlC 15 54 37.26 +12 55 13.4           ~ 2 0
101 LEDA 2801026 LSB 16 13 47.504 +54 22 08.25     15.9     ~ 115 0
102 [DZ2015] C09 GlC 16 40 17.94 +54 58 05.6           ~ 2 0
103 [DZ2015] C10 GlC 17 03 44.68 +38 47 50.2           ~ 2 0
104 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
105 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
106 [HLL2011] NGC6822C1 Cl* 19 40 11.77 -15 21 47.3           ~ 9 0
107 [HLL2011] NGC6822C2 Cl* 19 43 04.39 -14 58 21.5           ~ 8 0
108 [HFV2013] SC5 Cl* 19 43 42.30 -14 41 59.7           ~ 3 0
109 [H25] VII Cl* 19 44 55.77 -14 48 56.2   16.68 15.85     ~ 25 0
110 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
111 [H25] VIII Cl* 19 44 58.28 -14 43 13.7   18.64 17.91     ~ 12 0
112 [HFV2013] SC6 Cl* 19 45 37.02 -14 41 10.8           ~ 8 0
113 [HLL2011] NGC6822C3 Cl* 19 45 40.15 -14 49 25.0           ~ 7 0
114 [HFV2013] SC7 Cl* 19 46 00.85 -14 32 35.4           ~ 7 0
115 [HLL2011] NGC6822C4 Cl* 19 47 30.54 -14 26 49.3           ~ 7 0
116 [DZ2015] C11 GlC 20 55 18.00 +54 42 46.2           ~ 2 0
117 [DZ2015] C12 GlC 22 54 47.40 +17 26 21.4           ~ 2 0
118 NAME Lacerta I G 22 58 16.3 +41 17 28           ~ 53 0
119 NAME Local Group GrG ~ ~           ~ 9325 0

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