2024MNRAS.530.2670Z

Query : 2024MNRAS.530.2670Z

2024MNRAS.530.2670Z - Mon. Not. R. Astron. Soc., 530, 2670-2687 (2024/May-3)

NSCs from groups to clusters: a catalogue of dwarf galaxies in the Shapley supercluster and the role of environment in galaxy nucleation.

ZANATTA E., SANCHEZ-JANSSEN R., DE SOUZA R.S., CHIES-SANTOS A.L. and BLAKESLEE J.P.

Abstract (from CDS):

Nuclear star clusters (NSCs) are dense star clusters located at the centre of galaxies spanning a wide range of masses and morphologies. Analysing NSC occupation statistics in different environments provides an invaluable window into investigating early conditions of high-density star formation and mass assembly in clusters and group galaxies. We use HST/ACS deep imaging to obtain a catalogue of dwarf galaxies in two galaxy clusters in the Shapley supercluster: the central cluster Abell 3558 and the northern Abell 1736a. The Shapley region is an ideal laboratory to study nucleation as it stands as the highest mass concentration in the nearby Universe. We investigate the NSC occurrence in quiescent dwarf galaxies as faint as MI = -10 mag and compare it with all other environments where nucleation data is available. We use galaxy cluster/group halo mass as a proxy for the environment and employ a Bayesian logistic regression framework to model the nucleation fraction (fn) as a function of galaxy luminosity and environment. We find a notably high fn in Abell 3558: at MI ≈ -13.1 mag, half the galaxies in the cluster host NSCs. This is higher than in the Virgo and Fornax clusters but comparable to the Coma Cluster. On the other hand, the fn in Abell 1736a is relatively lower, comparable to groups in the local volume. We find that the probability of nucleation varies with galaxy luminosity remarkably similarly in galaxy clusters. These results reinforce previous findings of the important role of the environment in NSC formation/growth.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): galaxies: dwarf - galaxies: evolution - galaxies: nuclei - galaxies: star clusters: general

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 52

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Number of rows : 52
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
3 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
4 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
5 NGC 1269 EmG 03 17 18.5785534752 -41 06 28.628735184 9.85 9.83 8.81 8.72   ~ 445 1
6 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
7 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
8 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 756 3
9 ACO 3358 ClG 05 38 14 -20 37.3           ~ 24 0
10 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 682 1
11 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
12 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
13 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
14 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
15 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
16 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
17 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
18 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
19 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
20 NGC 4437 AGN 12 32 45.586 +00 06 54.14   11.1   11.1 10.6 ~ 307 0
21 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
22 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
23 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
24 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
25 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
26 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
27 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
28 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
29 LEDA 2815821 G 13 21 32.4 -31 53 11   17.6       ~ 21 0
30 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
31 MCG-04-32-016 EmG 13 26 44.1102601752 -27 26 21.486264792   13.98   12.66 12.95 ~ 50 1
32 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 268 2
33 NVSS J132729-312327 rG 13 27 29.6320274928 -31 23 24.218517660   15.55   13.69 13.30 ~ 44 0
34 LEDA 47197 rG 13 27 54.9677532648 -31 32 18.771659844   15.81   13.87   ~ 36 0
35 MCG-05-32-026 rG 13 27 56.884 -31 29 43.71   13.88 15 12.24 12.76 ~ 88 2
36 IC 4255 GiG 13 28 00.1331806392 -27 21 15.256346832   14.18   12.74 13.07 ~ 35 0
37 LEDA 88857 rG 13 28 02.6293992312 -31 45 20.684288484   16.05   14.23 13.97 ~ 35 0
38 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
39 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
40 ACO 3559 ClG 13 29 53.9 -29 31 29           ~ 74 0
41 IC 4289 rG 13 34 47.798 -27 07 37.45   14.33   12.75 13.19 ~ 28 1
42 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
43 ACO S 740 ClG 13 43 32 -38 11.1           ~ 21 0
44 MCG-06-30-020 BiC 13 43 33.2178202056 -38 10 33.460160808   13.89   12.47 12.66 ~ 57 2
45 LEDA 2815824 G 13 46 01.0 -36 19 41   17.1       ~ 27 0
46 ESO 325-16 Sy2 13 46 23.9893476312 -37 58 15.832084476   14.91   13.48 13.53 ~ 45 1
47 ACO 3570 ClG 13 46 50 -37 55.0           ~ 57 3
48 MCG-05-33-002 rG 13 47 28.385 -32 51 54.02   13.02   11.53 12.50 ~ 67 1
49 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
50 2MASX J13481399-3322547 BiC 13 48 14.0141240328 -33 22 54.958055052   15.57   14.36 13.51 ~ 30 0
51 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
52 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 303 0

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