2024A&A...682A.111B

Query : 2024A&A...682A.111B

2024A&A...682A.111B - Astronomy and Astrophysics, volume 682A111 (2024/2-1)

The galactic acceleration scale is imprinted on globular cluster systems of early-type galaxies of most masses and on red and blue globular cluster subpopulations.

BILEK M., HILKER M., RENAUD F., RICHTLER T., CHATURVEDI A. and SAMUROVIC S.

Abstract (from CDS):

Context. Globular clusters (GCs) carry information about the formation histories and gravitational fields of their host galaxies. It was found before that the radial profiles of the volume number density of GCs in GC systems (GCSs) follow broken power laws, while the breaks occur approximately at the a0 radii. These are the radii at which the gravitational fields of the galaxies equal the galactic acceleration scale a0 = 1.2 × 10–10 m s–2 known from the radial acceleration relation or the MOND theory of modified dynamics.
Aims. Our main goals here are to explore whether the above results hold true for galaxies of a wider mass range and for the red and blue GC subpopulations.
Methods. We exploited catalogs of photometric GC candidates in the Fornax galaxy cluster based on ground and space observations and a new catalog of spectroscopic GCs of NGC 1399, the central galaxy of the cluster. For every galaxy, we obtained the parameters of the broken power-law density by fitting the on-sky distribution of the GC candidates, while allowing for a constant density of contaminants. The logarithmic stellar masses of our galaxy sample span 8.0 - 11.4 M⊙.
Results. All investigated GCSs with a sufficient number of members show broken power-law density profiles. This holds true for the total GC population and the blue and red subpopulations. The inner and outer slopes and the break radii agree well for the different GC populations. The break radii agree with the a0 radii typically within a factor of two for all GC color subpopulations. The outer slopes correlate better with the a0 radii than with the galactic stellar masses. The break radii of NGC 1399 vary in azimuth, such that they are greater toward and against the direction to NGC 1404, which tidally interacts with NGC 1399.

Abstract Copyright: © The Authors 2024

Journal keyword(s): galaxies: elliptical and lenticular - cD - galaxies: structure - galaxies: star clusters: general - galaxies: evolution - gravitation - methods: data analysis

Simbad objects: 90

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Number of rows : 90
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
5 NGC 1317 GiP 03 22 44.2823209512 -37 06 13.180903956 12.20 11.78 11.02 10.22   ~ 240 1
6 NGC 1336 GiG 03 26 32.1845365512 -35 42 48.662672184   13.12   11.95   ~ 150 0
7 MCG-06-08-017 G 03 26 42.7606452432 -35 02 25.614772296   13.46 12.84     ~ 19 0
8 ESO 358-4 LSB 03 26 54.1 -35 31 07   18.07   16.90   ~ 22 0
9 MCG-06-08-019 GiG 03 27 18.0282957096 -34 31 35.315736492   14.15   12.95   ~ 98 0
10 LEDA 12882 LSB 03 27 21.7 -36 08 48   17.5       ~ 16 0
11 LEDA 74521 GiC 03 28 51.97 -33 50 45.3   16.5       ~ 12 0
12 ESO 358-10 GiG 03 29 43.26 -33 33 25.0   14.85   13.61   ~ 46 0
13 LEDA 74584 GiC 03 30 10.12 -33 41 35.8   17.1       ~ 12 0
14 LEDA 74605 GiC 03 30 30.52 -34 15 36.0   16.4       ~ 23 0
15 NGC 1351 GiG 03 30 34.9598617824 -34 51 14.242996620   12.30   10.85   ~ 190 0
16 LEDA 74617 GiC 03 30 46.21 -35 32 57.9   15.96       ~ 27 0
17 LEDA 74618 GiC 03 30 46.6 -35 21 17   17.5       ~ 16 0
18 NGC 1352 GiG 03 31 32.9853023352 -19 16 42.259710000   14.16   12.99   ~ 31 0
19 6dFGS gJ033147.6-350305 GiC 03 31 47.6331242640 -35 03 05.148733932   15.27       ~ 60 0
20 LEDA 13131 LSB 03 32 29.8 -36 05 18   17.3       ~ 20 0
21 LEDA 74704 LSB 03 32 45.1 -37 50 11   17.0       ~ 12 0
22 2MASX J03324763-3414194 LSB 03 32 47.6755769592 -34 14 19.382566452   15.25       ~ 54 0
23 ESO 358-14 LSB 03 32 57.4 -35 44 15   17.95   16.69   ~ 28 0
24 LEDA 74710 LSB 03 33 03.3 -36 26 35   17.7       ~ 20 0
25 LEDA 74711 GiC 03 33 03.64 -33 43 27.8   16.8       ~ 16 0
26 LEDA 13177 EmG 03 33 33.84 -33 34 24.0   15.11       ~ 59 0
27 LEDA 74727 LSB 03 33 43.3 -35 51 34   16.7       ~ 25 1
28 LEDA 660587 GiC 03 33 56.28 -34 33 41.8   17.3       ~ 17 0
29 LEDA 74737 LSB 03 34 20.2 -35 21 45   17.5       ~ 23 0
30 MCG-06-08-027 EmG 03 34 29.4927803424 -35 32 47.329271916   14.50       ~ 95 1
31 ESO 358-19 GiC 03 34 30.8740483488 -34 17 51.501897456   15.71       ~ 44 0
32 LEDA 13242 LSB 03 34 44.2 -35 51 41   16.9       ~ 24 0
33 NGC 1373 GiP 03 34 59.1993515280 -35 10 15.879086760 14.44 14.03 13.26     ~ 136 1
34 LEDA 660938 GiC 03 35 00.7 -34 32 08           ~ 9 0
35 NGC 1374 EmG 03 35 16.5885737352 -35 13 34.563417168 12.46 11.97 11.08 10.59   ~ 322 1
36 NGC 1375 GiG 03 35 16.8025873104 -35 15 56.371399740 13.50 13.02 12.40 11.74   ~ 175 1
37 2MASX J03352407-3621496 GiC 03 35 24.0910651464 -36 21 49.743672768   15.90       ~ 38 0
38 LEDA 13291 LSB 03 35 46.3 -35 59 21   16.8       ~ 22 0
39 NGC 1379 GiP 03 36 03.9668625792 -35 26 28.547476800 12.17 12.04 10.91 10.60   ~ 277 1
40 6dFGS gJ033612.9-360959 GiC 03 36 12.94 -36 09 59.0   16.4       ~ 25 0
41 NGC 1380 Sy2 03 36 27.590 -34 58 34.68 11.32 10.94 9.93 9.37   ~ 460 1
42 NGC 1381 GiP 03 36 31.6592184144 -35 17 42.739221912 12.90 12.47 11.50 11.02   ~ 269 1
43 NGC 1386 Sy1 03 36 46.238 -35 59 57.39 12.42 12.16 11.23 10.76   ~ 553 1
44 NGC 1380A GiG 03 36 47.5007323848 -34 44 22.739259552 13.63 13.36 12.41 12.00   ~ 156 1
45 LEDA 74778 GiC 03 36 48.6 -34 16 48   17.2       ~ 21 0
46 LEDA 676045 GiC 03 36 49.79 -33 27 38.3   16.67   15.85   ~ 13 0
47 LEDA 74780 LSB 03 36 52.8 -36 29 10   17.2       ~ 15 0
48 MCG-06-09-008 GiP 03 36 54.3158470008 -35 22 28.948080864   14.81       ~ 105 2
49 NGC 1387 Sy2 03 36 57.0337458600 -35 30 23.675934060 12.18 11.75 10.69 10.16   ~ 290 1
50 6dFGS gJ033704.6-353524 GiC 03 37 04.66 -35 35 24.0   15.94   15.65   ~ 51 0
51 NGC 1382 GiP 03 37 08.9722655064 -35 11 41.995386996 13.19 13.79 12.92 12.31   ~ 135 1
52 NGC 1389 EmG 03 37 11.7427350576 -35 44 45.873195000 12.80 12.39 11.50 10.99   ~ 208 1
53 LEDA 74791 GiC 03 37 23.41 -34 54 00.1   16.51       ~ 32 0
54 LEDA 74800 LSB 03 37 53.72 -37 16 47.3   16.7       ~ 19 0
55 LEDA 74802 GiC 03 37 54.6 -34 52 57   17.31       ~ 19 0
56 NGC 1396 GiG 03 38 06.5677454520 -35 26 23.637846372   14.80       ~ 105 1
57 ESO 358-42 GiC 03 38 09.1644279912 -34 31 07.380761484   15.74   14.44   ~ 67 1
58 ESO 358-44 LSB 03 38 13.49 -37 17 24.6   16.48   15.66   ~ 28 0
59 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
60 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
61 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
62 LEDA 13452 GiC 03 39 19.60 -35 43 29.0   16.10 15.89     ~ 49 1
63 LEDA 681755 GiC 03 39 55.08 -33 03 11.0   17.1       ~ 18 0
64 LEDA 74859 GiC 03 40 01.30 -34 45 28.5   16.85       ~ 27 0
65 NGC 1427A GiP 03 40 08.6854 -35 37 34.647   13.44   12.68 13.3 ~ 127 1
66 LEDA 74865 LSB 03 40 10.0 -34 26 48   17.2       ~ 16 0
67 LEDA 13515 LSB 03 40 23.41 -35 16 32.8   16.20       ~ 40 2
68 LEDA 74873 GiC 03 40 27.0207791448 -36 29 56.047672320   16.5       ~ 27 0
69 LEDA 74879 GiC 03 40 33.86 -35 01 21.4   15.73   15.54   ~ 46 0
70 NGC 1419 GiG 03 40 42.1036600944 -37 30 38.778564456   13.56   12.07   ~ 146 0
71 2MASX J03405042-3544534 GiC 03 40 50.4165381120 -35 44 54.385434708   15.74       ~ 42 0
72 LEDA 74896 LSB 03 40 55.34 -37 50 16.8   16.3       ~ 21 0
73 MCG-06-09-018 GiG 03 41 03.6078361560 -33 46 45.297655572   13.86   12.57   ~ 95 0
74 LEDA 13560 LSB 03 41 12.79 -35 09 29.8   17.0       ~ 27 1
75 6dFGS gJ034121.4-334611 GiC 03 41 21.53 -33 46 09.2   15.44       ~ 28 0
76 LEDA 74915 GiC 03 41 31.83 -35 35 20.9   16.16       ~ 25 0
77 2MASX J03414141-3510119 GiC 03 41 41.410 -35 10 11.99   15.70       ~ 41 1
78 LEDA 74919 EmG 03 41 45.46 -33 47 30.7   15.82       ~ 27 0
79 NGC 1427 GiG 03 42 19.4455150392 -35 23 33.169251120   11.89   10.44   ~ 298 0
80 NGC 1428 GiG 03 42 22.73 -35 09 14.4   13.77   12.49   ~ 125 0
81 LEDA 13615 LSB 03 42 26.3 -36 41 12   16.7       ~ 19 0
82 LEDA 74936 GiC 03 42 27.27 -33 52 14.2   16.25       ~ 19 0
83 MCG-06-09-023 GiP 03 42 45.302 -33 55 14.03   14.53       ~ 46 0
84 ESO 358-56 GiP 03 43 22.631 -33 56 25.30   15.58   14.33   ~ 61 0
85 LEDA 74960 GiC 03 43 54.4 -33 02 30   17.1       ~ 13 0
86 6dFGS gJ034432.9-351146 GiC 03 44 32.94 -35 11 44.8   15.90       ~ 30 0
87 LEDA 13749 GiC 03 44 59.9 -36 19 11   16.26       ~ 22 0
88 LEDA 74990 GiC 03 46 33.4 -34 41 10   17.4       ~ 15 0
89 NGC 1947 GiG 05 26 47.613 -63 45 36.08   11.76 10.80 10.06   ~ 141 0
90 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2

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