2021ApJ...908..224W

Query : 2021ApJ...908..224W

2021ApJ...908..224W - Astrophys. J., 908, 224-224 (2021/February-3)

Mass segregation as a new indicator of binary, IMBH, and stellar-mass black hole systems in globular clusters.

WU W. and ZHAO G.

Abstract (from CDS):

This study presents the mass segregation of 35 Galactic globular clusters (GCs) through the radial profile of the mean mass of main-sequence stars. Most of them are found to be mass segregated due to two-body relaxation effects. The GCs with a larger core to half-mass-radius ratio tend to be less mass segregated. Recent simulations show that energy sources can quench mass segregation in relaxed GCs. Combining mass segregation and core binary fractions (fc), we find a moderate anticorrelation between them when fc is below 0.15. Four GCs that have a small amount of mass segregation are selected as possible intermediate-mass black hole holders. However, none of them are strong candidates considering their half-mass relaxation times.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Globular star clusters - Binary stars - Intermediate-mass black holes - Stellar mass black holes - Stellar kinematics - Star clusters

Simbad objects: 53

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Number of rows : 53
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 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
2 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
3 NGC 1261 GlC 03 12 16.21 -55 12 58.4     8.63     ~ 579 0
4 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 267 1
5 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
6 NGC 2298 GlC 06 48 59.41 -36 00 19.1     8.89     ~ 547 0
7 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
8 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
9 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 616 0
10 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
11 NGC 4833 GlC 12 59 33.92 -70 52 35.4           ~ 467 0
12 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
13 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
14 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
15 NGC 5286 GlC 13 46 26.81 -51 22 27.3           ~ 485 0
16 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
17 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
18 NGC 5927 GlC 15 28 00.69 -50 40 22.9           ~ 499 0
19 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 408 0
20 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
21 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
22 NGC 6101 GlC 16 25 48.12 -72 12 07.9           ~ 337 0
23 NGC 6144 GlC 16 27 13.86 -26 01 24.6           ~ 268 0
24 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 835 0
25 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
26 M 12 GlC 16 47 14.18 -01 56 54.7     6.07     ~ 736 0
27 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 857 0
28 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
29 NGC 6352 GlC 17 25 29.11 -48 25 19.8           ~ 425 0
30 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
31 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 251 0
32 NGC 6535 GlC 18 03 50.51 -00 17 51.5     9.85     ~ 320 0
33 NGC 6541 GlC 18 08 02.36 -43 42 53.6           ~ 409 0
34 NGC 6584 GlC 18 18 37.60 -52 12 56.8     8.17     ~ 317 0
35 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
36 M 69 GlC 18 31 23.10 -32 20 53.1           ~ 492 0
37 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
38 M 70 GlC 18 43 12.76 -32 17 31.6           ~ 421 0
39 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
40 NGC 6717 GlC 18 55 06.04 -22 42 05.3           ~ 273 0
41 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 543 0
42 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
43 M 56 GlC 19 16 35.57 +30 11 00.5           ~ 455 0
44 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 460 0
45 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 384 0
46 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 357 0
47 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
48 NGC 6934 GlC 20 34 11.37 +07 24 16.1           ~ 459 0
49 M 72 GlC 20 53 27.70 -12 32 14.3     8.96     ~ 465 0
50 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
51 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1
52 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0
53 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 548 0

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