2020MNRAS.491.3251P

Query : 2020MNRAS.491.3251P

2020MNRAS.491.3251P - Mon. Not. R. Astron. Soc., 491, 3251-3265 (2020/January-3)

Globular clusters in the inner Galaxy classified from dynamical orbital criteria.

PEREZ-VILLEGAS A., BARBUY B., KERBER L.O., ORTOLANI S., SOUZA S.O. and BICA E.

Abstract (from CDS):

Globular clusters (GCs) are the most ancient stellar systems in the Milky Way. Therefore, they play a key role in the understanding of the early chemical and dynamical evolution of our Galaxy. Around 40 per cent of them are placed within ∼4 kpc from the Galactic centre. In that region, all Galactic components overlap, making their disentanglement a challenging task. With GaiaData Release 2, we have accurate absolute proper motions for the entire sample of known GCs that have been associated with the bulge/bar region. Combining them with distances, from RR Lyrae when available, as well as radial velocities from spectroscopy, we can perform an orbital analysis of the sample, employing a steady Galactic potential with a bar. We applied a clustering algorithm to the orbital parameters apogalactic distance and the maximum vertical excursion from the plane, in order to identify the clusters that have high probability to belong to the bulge/bar, thick disc, inner halo, or outer halo component. We found that 30 per cent of the clusters classified as bulge GCs based on their location are just passing by the inner Galaxy, they appear to belong to the inner halo or thick disc component, instead. Most GCs that are confirmed to be bulge GCs are not following the bar structure and are older than the epoch of the bar formation.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): Galaxy: bulge - globular clusters: general - Galaxy: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/MNRAS/491/3251): table1.dat table2.dat table4.dat table5.dat table6.dat table7.dat>

Simbad objects: 83

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Number of rows : 83
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 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
4 NGC 5927 GlC 15 28 00.69 -50 40 22.9           ~ 499 0
5 Cl Lynga 7 OpC 16 11 03.65 -55 19 04.0           ~ 129 0
6 NGC 6144 GlC 16 27 13.86 -26 01 24.6           ~ 268 0
7 NGC 6139 GlC 16 27 39.987 -38 50 57.03   11.03 9.68     ~ 231 0
8 ESO 390-6 GlC 16 28 40.10 -35 21 13.0     12.0     ~ 113 0
9 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 835 0
10 ESO 452-11 GlC 16 39 25.50 -28 23 52.0           ~ 89 0
11 NGC 6235 GlC 16 53 25.36 -22 10 38.8   11.99 7.20     ~ 208 0
12 NGC 6256 GlC 16 59 32.68 -37 07 17.1           ~ 182 0
13 M 62 GlC 17 01 12.60 -30 06 44.5           ~ 668 0
14 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 406 1
15 NGC 6284 GlC 17 04 28.747 -24 45 51.22   10.72 7.43     ~ 302 0
16 NGC 6287 GlC 17 05 09.4906767360 -22 42 28.099250172   11.49 10.30     ~ 240 0
17 NGC 6293 GlC 17 10 10.42 -26 34 54.2           ~ 309 0
18 NGC 6304 GlC 17 14 32.25 -29 27 43.3           ~ 394 0
19 NGC 6316 GlC 17 16 37.42 -28 08 24.0   10.33 9.03     ~ 247 0
20 NGC 6325 GlC 17 17 59.27 -23 45 57.7           ~ 190 0
21 M 9 GlC 17 19 11.78 -18 30 58.5   9.36 8.42     ~ 348 0
22 NGC 6342 GlC 17 21 10.14 -19 35 14.7     10.01     ~ 310 0
23 NGC 6356 GlC 17 23 34.99 -17 48 46.9   10.01 7.42     ~ 372 1
24 NGC 6355 GlC 17 23 58.65 -26 21 12.3   12.46 11.05     ~ 183 0
25 NGC 6352 GlC 17 25 29.11 -48 25 19.8           ~ 425 0
26 ESO 454-29 GlC 17 27 33.24 -30 48 07.8           ~ 278 0
27 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 344 0
28 GCl 66.1 GlC 17 30 38.90 -31 35 44.0           ~ 139 0
29 ESO 455-11 GlC 17 31 05.20 -29 58 54.0           ~ 208 0
30 NGC 6362 GlC 17 31 54.99 -67 02 54.0           ~ 637 0
31 Liller 1 Cl* 17 33 24.50 -33 23 20.0           ~ 311 0
32 NGC 6380 GlC 17 34 28.00 -39 04 09.0           ~ 175 0
33 ESO 455-23 GlC 17 35 47.80 -30 28 11.0           ~ 285 0
34 NAME Tonantzintla 2 GlC 17 36 10.500 -38 33 12.00           ~ 115 0
35 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
36 M 14 GlC 17 37 36.15 -03 14 45.3   9.55 5.73     ~ 420 0
37 NGC 6401 GlC 17 38 36.93 -23 54 31.5   11.31 10.71     ~ 203 0
38 ESO 520-21 GlC 17 43 42.20 -26 13 21.0           ~ 211 0
39 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
40 NAME cl Djorgovski 1 GlC 17 47 28.30 -33 03 56.0           ~ 97 0
41 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
42 NGC 6440 GlC 17 48 52.67 -20 21 34.5           ~ 592 0
43 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
44 Cl Terzan 6 GlC 17 50 47.02873 -31 16 29.6900           ~ 214 0
45 NGC 6453 GlC 17 50 51.77 -34 35 55.1   10.49       ~ 189 0
46 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 251 0
47 GCl 80.1 GlC 18 01 38.80 -26 50 23.0           ~ 143 0
48 ESO 456-38 GlC 18 01 49.10 -27 49 33.0           ~ 120 0
49 NGC 6517 GlC 18 01 50.376 -08 57 34.39   11.08       ~ 215 0
50 ESO 521-16 GlC 18 02 57.40 -26 04 00.0           ~ 123 0
51 NGC 6522 GlC 18 03 34.08 -30 02 02.3           ~ 569 0
52 NGC 6535 GlC 18 03 50.51 -00 17 51.5     9.85     ~ 320 0
53 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 561 0
54 NGC 6539 GlC 18 04 49.74 -07 35 09.1           ~ 247 0
55 NGC 6540 GlC 18 06 08.60 -27 45 55.0           ~ 145 0
56 NGC 6544 GlC 18 07 20.58 -24 59 50.4   11.36 9.90     ~ 332 0
57 NGC 6541 GlC 18 08 02.36 -43 42 53.6           ~ 409 0
58 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
59 NGC 6558 GlC 18 10 17.6 -31 45 50           ~ 265 0
60 IC 1276 GlC 18 10 44.26 -07 12 27.3           ~ 146 0
61 ESO 522-1 GlC 18 12 15.80 -22 44 31.0     14.86     ~ 114 1
62 NGC 6569 GlC 18 13 38.88 -31 49 35.2   10.78 9.47     ~ 276 0
63 ESO 456-78 GlC 18 14 06.600 -28 38 06.00           ~ 82 0
64 NAME Mercer 5 Cl* 18 23 19.800 -13 40 07.00           ~ 29 0
65 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
66 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 821 0
67 NGC 6638 GlC 18 30 56.25 -25 29 47.1   10.81 9.68     ~ 258 0
68 M 69 GlC 18 31 23.10 -32 20 53.1           ~ 492 0
69 NGC 6642 GlC 18 31 54.23 -23 28 34.1   11.30 10.24     ~ 240 0
70 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
71 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
72 ESO 591-12 GlC 18 41 29.90 -19 49 33.0           ~ 130 0
73 M 70 GlC 18 43 12.76 -32 17 31.6           ~ 421 0
74 NGC 6712 GlC 18 53 04.32 -08 42 21.5           ~ 550 0
75 NGC 6717 GlC 18 55 06.04 -22 42 05.3           ~ 273 0
76 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 543 0
77 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
78 NGC 6760 GlC 19 11 12.06 +01 01 49.7   11.37 9.78     ~ 264 0
79 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
80 GCl 114 GlC 19 45 14.40 -08 00 26.0     7.54     ~ 165 0
81 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
82 NAME Galactic Bar reg ~ ~           ~ 1458 0
83 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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