2020MNRAS.492.4874F

Query : 2020MNRAS.492.4874F

2020MNRAS.492.4874F - Mon. Not. R. Astron. Soc., 492, 4874-4883 (2020/March-2)

Globular clusters in Coma cluster ultra-diffuse galaxies (UDGs): evidence for two types of UDG?

FORBES D.A., ALABI A., ROMANOWSKY A.J., BRODIE J.P. and ARIMOTO N.

Abstract (from CDS):

Ultra-diffuse galaxies (UDGs) reveal extreme properties. Here, we compile the largest study to date of 85 globular cluster (GC) systems around UDGs in the Coma cluster, using new deep ground-based imaging of the known UDGs and existing imaging from the Hubble Space Telescope of their GC systems. We find that the richness of GC systems in UDGs generally exceeds that found in normal dwarf galaxies of the same stellar mass. These GC-rich UDGs imply haloes more massive than expected from the standard stellar mass-halo mass relation. The presence of such overly massive haloes presents a significant challenge to the latest simulations of UDGs in cluster environments. In some exceptional cases, the mass in the GC system is a significant fraction of the stellar content of the host galaxy. We find that rich GC systems tend to be hosted in UDGs of lower luminosity, smaller size, and fainter surface brightness. Similar trends are seen for normal dwarf galaxies in the Coma cluster. A toy model is presented in which the GC-rich UDGs are assumed to be `failed' galaxies within massive haloes that have largely old, metal-poor, alpha-element-enhanced stellar populations. On the other hand, GC-poor UDGs are more akin to normal, low surface brightness dwarfs that occupy less massive dark matter haloes. Additional data on the stellar populations of UDGs with GC systems will help to further refine and test this simplistic model.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: haloes - galaxies: star clusters

Simbad objects: 94

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Number of rows : 94
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 NGC 1427A GiP 03 40 08.6854 -35 37 34.647   13.44   12.68 13.3 ~ 127 1
2 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
3 SMDG J1253152+274115 LSB 12 53 15.1 +27 41 15           ~ 14 0
4 SMDG J1255062+273727 LSB 12 55 06.161 +27 37 27.32     20.73 20.45   ~ 10 0
5 SMDG J1255481+263352 LSB 12 55 48.1 +26 33 53           ~ 9 0
6 SMDG J1255554+272736 LSB 12 55 55.40 +27 27 35.9     20.80 20.69   ~ 13 0
7 [KZD2021] J1256054+273018 LSB 12 56 05.38 +27 30 18.2       22.2   ~ 4 0
8 SMDG J1256129+273250 LSB 12 56 12.95 +27 32 50.3   21.67 21.15 21.18   ~ 13 0
9 SMDG J1256227+281955 LSB 12 56 22.687 +28 19 54.26     20.90 20.48   ~ 12 0
10 SMDG J1256284+273707 LSB 12 56 28.41 +27 37 06.3     20.18 20.06   ~ 12 0
11 SMDG J1256297+282640 LSB 12 56 29.678 +28 26 40.47     19.86 20.60   ~ 13 0
12 SDSS J125700.89+273155.1 LSB 12 57 00.890 +27 31 55.17   21.51 20.37 20.29 20.3 ~ 13 0
13 SMDG J1257017+282325 LSB 12 57 01.687 +28 23 24.73     19.14 18.50   ~ 31 0
14 SMDG J1257189+270556 LSB 12 57 18.922 +27 05 55.62     20.00 20.55   ~ 11 0
15 SDSS J125801.11+271126.4 LSB 12 58 01.119 +27 11 26.47   20.66 20.02 19.68   ~ 19 0
16 SMDG J1258050+274359 LSB 12 58 05.047 +27 43 58.50     19.92 19.97   ~ 11 0
17 [ARF2020] COMA 32 5262 LSB 12 58 07.824 +27 54 45.48     20.79 20.64   ~ 9 0
18 SMDG J1258104+271912 LSB 12 58 10.411 +27 19 11.48   21.32 20.28 20.08   ~ 11 0
19 SMDG J1258164+275330 LSB 12 58 16.351 +27 53 29.27     20.29 20.23   ~ 10 0
20 [ARF2020] COMA 21 8329 LSB 12 58 29.743 +27 22 55.62   23.05 22.15 21.95   ~ 5 0
21 SDSS J125832.93+272406.5 LSB 12 58 32.933 +27 24 06.51     21.27 21.07   ~ 5 0
22 [ARF2020] COMA 21 4661 LSB 12 58 55.7352 +27 45 28.404   21.59 20.56 20.43 20.5 ~ 7 0
23 [ARF2020] COMA 22 6669 LSB 12 59 09.360 +27 49 48.32   22.21 21.34 20.98   ~ 9 0
24 [ARF2020] COMA 24 4030 LSB 12 59 09.528 +29 00 24.47     20.28 19.98   ~ 18 0
25 SDSS J125913.94+290718.1 LSB 12 59 13.942 +29 07 18.18     20.25 20.02   ~ 12 0
26 SDSS J125914.44+280217.4 LSB 12 59 14.446 +28 02 17.44   20.67   19.78 19.8 ~ 19 0
27 SMDG J1259163+281751 LSB 12 59 16.303 +28 17 50.67     19.95 19.84   ~ 12 0
28 SMDG J1259238+274727 LSB 12 59 23.85 +27 47 27.2   21.16 20.23 19.82   ~ 15 0
29 [ARF2020] COMA 22 4680 LSB 12 59 27.521 +27 52 17.82   21.67 20.57 20.32 20.3 ~ 9 0
30 [BKY2023] 768 LSB 12 59 28.6 +28 01 22         20.8 ~ 8 0
31 [ARF2020] COMA 22 7137 LSB 12 59 36.317 +27 53 07.55   22.37 21.54 21.40   ~ 5 0
32 SDSS J125936.42+275101.7 LSB 12 59 36.427 +27 51 01.77   21.75 20.88 20.67 20.4 ~ 7 0
33 SDSS J125936.48+275108.0 LSB 12 59 36.46 +27 51 07.4   21.38 20.30 19.95 19.8 ~ 8 0
34 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
35 SDSS J125944.77+275537.1 LSB 12 59 44.776 +27 55 37.17   20.73 19.73 19.45 20.2 ~ 9 0
36 [BKY2023] 572 LSB 12 59 46.961 +28 01 49.75           ~ 4 0
37 SMDG J1259487+274639 LSB 12 59 48.72 +27 46 39.0   21.88 20.46 20.07   ~ 18 0
38 [ARF2020] COMA 22 4810 LSB 12 59 48.926 +27 54 56.02   21.67 20.62 20.36   ~ 5 0
39 [ARF2020] COMA 22 9212 LSB 12 59 56.650 +27 59 02.07   23.78 23.03 22.72   ~ 5 0
40 [ARF2020] COMA 22 8427 LSB 12 59 59.158 +27 59 45.90   23.38 22.21 22.13   ~ 5 0
41 [ARF2020] COMA 22 7222 LSB 13 00 03.859 +27 56 01.70     21.58 21.40 21.6 ~ 6 0
42 GMP 2962 LSB 13 00 05.390 +27 53 33.31   20.63 19.57 19.25   ~ 12 0
43 [ARF2020] COMA 22 3562 LSB 13 00 05.702 +28 03 14.20   21.16 20.08 19.66   ~ 5 0
44 [ARF2020] COMA 22 9031 LSB 13 00 08.998 +28 05 07.48   23.84 22.74 22.34   ~ 4 0
45 [ARF2020] COMA 22 5585 LSB 13 00 09.055 +28 08 27.14     20.92 20.47   ~ 9 0
46 SDSS J130009.24+280359.6 LSB 13 00 09.241 +28 03 59.68   22.32 21.42 21.01 21.2 ~ 6 0
47 [ARF2020] COMA 22 7592 LSB 13 00 10.265 +27 56 24.94   22.8 21.75 21.62 21.8 ~ 9 0
48 SDSS J130011.77+280502.4 LSB 13 00 11.772 +28 05 02.48   21.04 20.21 19.69 19.1 ~ 12 0
49 [ARF2020] COMA 22 8814 LSB 13 00 13.538 +27 54 08.20   23.32 22.49 22.04   ~ 5 0
50 [ARF2020] COMA 22 5202 LSB 13 00 14.856 +28 00 31.00   21.87 20.77 20.66   ~ 8 0
51 SDSS J130016.57+280452.9 LSB 13 00 16.578 +28 04 52.98   22.51 21.40 21.09 20.8 ~ 6 0
52 [ARF2020] COMA 22 8756 LSB 13 00 16.903 +28 01 43.87   23.53 22.44 22.09   ~ 5 0
53 [ARF2020] COMA 22 8041 LSB 13 00 17.278 +28 00 58.78   23.76 21.98 21.64   ~ 6 0
54 [ARF2020] COMA 12 6761 LSB 13 00 18.398 +27 55 30.74   22.68 21.38 21.12 21.6 ~ 7 0
55 [ARF2020] COMA 22 6621 LSB 13 00 18.866 +27 48 06.99   22.48 21.32 21.08   ~ 11 0
56 GMP 2748 LSB 13 00 20.61 +27 47 12.3   20.15 19.20 18.76   ~ 27 0
57 SDSS J130021.38+280327.3 LSB 13 00 21.384 +28 03 27.33   21.89 20.88 20.49 20.5 ~ 9 0
58 [ARF2020] COMA 22 6673 LSB 13 00 21.715 +27 56 50.26   22.57 21.34 21.07 21.4 ~ 9 0
59 [ARF2020] COMA 22 8157 LSB 13 00 22.884 +27 58 38.22   23.15 22.04 21.71 22.2 ~ 7 0
60 [ARF2020] COMA 12 8829 LSB 13 00 23.352 +27 53 45.90   23.64 22.51 22.26   ~ 5 0
61 [ARF2020] COMA 22 6672 LSB 13 00 26.532 +28 00 01.32   23.08 21.34 21.12   ~ 5 0
62 [ARF2020] COMA 22 9088 LSB 13 00 28.027 +28 04 43.68   23.96 22.81 22.28   ~ 5 0
63 [ARF2020] COMA 12 8084 LSB 13 00 28.572 +27 56 38.28   23.06 22.00 21.68 22.4 ~ 7 0
64 GMP 2641 LSB 13 00 29.198 +27 59 24.62   21.37 20.52 20.18 20.2 ~ 14 0
65 [ARF2020] COMA 12 6143 LSB 13 00 29.868 +27 55 55.69   22.21 21.14 20.40   ~ 5 0
66 [ARF2020] COMA 22 9112 LSB 13 00 29.950 +28 00 35.08   23.42 22.86 22.62   ~ 4 0
67 [ARF2020] COMA 22 8481 LSB 13 00 33.523 +28 04 54.61   23.71 22.24 21.94   ~ 4 0
68 [ARF2020] COMA 12 7113 LSB 13 00 33.670 +27 55 25.08   22.62 21.53 21.27 21.4 ~ 7 0
69 [ARF2020] COMA 22 7572 LSB 13 00 33.886 +27 57 42.26   23.15 21.74 21.43   ~ 5 0
70 [ARF2020] COMA 21 5651 LSB 13 00 35.614 +27 29 51.12     20.95 20.70   ~ 8 0
71 SDSS J130039.35+280410.8 LSB 13 00 39.352 +28 04 10.89   21.45 20.21 19.87 20.5 ~ 11 0
72 [ARF2020] COMA 12 9252 LSB 13 00 40.152 +27 54 26.46   23.94 23.13 22.76   ~ 4 0
73 SDSS J130040.60+275601.4 LSB 13 00 40.607 +27 56 01.42   21.46 20.36 20.05 20.4 ~ 7 0
74 [ARF2020] COMA 12 9077 LSB 13 00 43.740 +27 57 08.50   24.14 22.80 22.56   ~ 4 0
75 [ARF2020] COMA 12 8989 LSB 13 00 46.450 +28 04 29.16   23.56 22.68 22.38   ~ 5 0
76 SMDG J1300473+264700 LSB 13 00 47.280 +26 46 59.30     20.73 20.07   ~ 13 0
77 [ARF2020] COMA 12 8755 LSB 13 00 47.654 +27 58 59.26   23.6 22.44 22.17   ~ 5 0
78 SDSS J130050.47+280357.1 LSB 13 00 50.477 +28 03 57.13   21.23 19.97 19.85 20.1 ~ 10 0
79 SMDG J1300514+280427 LSB 13 00 51.391 +28 04 25.93   21.98 20.76 20.49 20.4 ~ 12 0
80 SMDG J1300580+265835 LSB 13 00 57.996 +26 58 34.72     19.37 18.43   ~ 145 0
81 [ARF2020] COMA 10 4551 LSB 13 01 05.30 +27 09 35.1     20.51 19.75   ~ 11 0
82 GMP 2175 LSB 13 01 15.845 +27 12 38.62     19.41 18.58   ~ 47 0
83 SMDG J1301191+270315 LSB 13 01 19.090 +27 03 15.21     20.11 19.69   ~ 17 0
84 SMDG J1301303+282229 LSB 13 01 30.341 +28 22 28.55     20.25 20.20   ~ 21 0
85 SMDG J1301561+280722 LSB 13 01 56.165 +28 07 22.22     20.80 20.46   ~ 9 0
86 SMDG J1301582+275012 LSB 13 01 58.205 +27 50 11.91     19.89 19.45   ~ 61 0
87 SDSS J130216.51+290307.5 LSB 13 02 16.514 +29 03 07.52           ~ 4 0
88 SMDG J1302165+285717 LSB 13 02 16.601 +28 57 16.76     20.06 19.81   ~ 17 0
89 SMDG J1302254+281358 LSB 13 02 25.5 +28 13 58           ~ 8 0
90 SMDG J1302334+283452 LSB 13 02 33.4 +28 34 51           ~ 12 0
91 SMDG J1302578+274724 LSB 13 02 57.8 +27 47 25           ~ 9 0
92 SMDG J1304052+274804 LSB 13 04 05.1 +27 48 05           ~ 8 0
93 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
94 NAME Local Group GrG ~ ~           ~ 9325 0

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