2010MNRAS.406.1967G


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:10:55

2010MNRAS.406.1967G - Mon. Not. R. Astron. Soc., 406, 1967-1984 (2010/August-2)

Globular cluster systems in nearby dwarf galaxies - III. Formation efficiencies of old globular clusters.

GEORGIEV I.Y., PUZIA T.H., GOUDFROOIJ P. and HILKER M.

Abstract (from CDS):

We investigate the origin of the shape of the globular cluster (GC) system scaling parameters as a function of galaxy mass, i.e. specific frequency (SN), specific luminosity (SL), specific mass (SM) and specific number of GCs. In the low-mass galaxy regime (MV ≳ -16 mag), our analysis is based on Hubble Space Telescope/Advanced Camera for Surveys observations of GC populations of faint, mainly late-type dwarf galaxies in low-density environments. In order to sample the entire range in galaxy mass (MV = -11 to -23mag =106- 1011L), environment and morphology we augment our sample with data of spiral and elliptical galaxies from the literature, in which old GCs are reliably detected. This large data set confirms (irrespective of the galaxy type) the increase in the specific frequencies of GCs above and below a galaxy magnitude of MV ≃ -20mag. Over the full mass range, the SL value of early-type galaxies is, on average, twice that of late types. To investigate the observed trends, we derive theoretical predictions of GC system scaling parameters as a function of host galaxy mass based on the models of Dekel and Birnboim in which star formation processes are regulated by stellar and supernova feedback below a stellar mass of 3x1010M and by virial shocks above it. We find that the analytical model describes remarkably well the shape of the GC system scaling parameter distributions with a universal specific GC formation efficiency, η, which relates the total mass in GCs to the total galaxy halo mass. Early-type and late-type galaxies show a similar mean value of η = 5.5x10–5, with an increasing scatter towards lower galaxy masses. This can be due to the enhanced stochastic nature of the star and star-cluster formation processes for such systems. Some massive galaxies have excess η values compared to what is expected from the mean model prediction for galaxies more luminous than MV ≃ -20mag (LV ≳ 1010L). This may be attributed to a very efficient early GC formation, less efficient production of field stars, accretion of predominantly low-mass/luminosity high-η galaxies or a mixture of all these effects.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): galaxies: dwarf - galaxies: irregular - galaxies: star clusters

Errata: erratum vol.409, p. 447 (2010)

Simbad objects: 57

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Number of rows : 57

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Sculptor dIG G 00 08 13.4 -34 34 41   15.54   14.99   ~ 135 3
2 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 276 0
3 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11090 1
4 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 377 2
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9600 1
6 UGC 685 G 01 07 22.55 +16 41 03.1 15.01 14.55 14.07     ~ 119 0
7 UGC 1281 LSB 01 49 31.71 +32 35 16.2   13.0       ~ 143 0
8 LEDA 166064 G 01 55 20.2 +27 57 14   16.3       ~ 47 0
9 LEDA 166065 G 02 00 10.2 +28 49 53   17.2       ~ 51 0
10 NGC 784 LSB 02 01 16.932 +28 50 14.13 12.97 12.50 12.07 11.83   ~ 171 0
11 LBN 659 GiG 02 36 35.469 +59 39 16.53   17       ~ 177 2
12 ESO 154-23 G 02 56 50.4 -54 34 17   12.63   12.18 12.5 ~ 97 0
13 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5790 1
14 NGC 1311 G 03 20 06.946 -52 11 07.76 13.89 13.35 12.93 12.75 13.1 ~ 105 0
15 [KK98a] 032029.5-663004 G 03 21 05.7 -66 19 22           ~ 17 1
16 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1319 0
17 IC 1959 GiG 03 33 12.576 -50 24 51.13 13.52 13.32 12.96 12.75 12.7 ~ 86 0
18 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1465 1
19 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1573 0
20 ESO 358-49 GiP 03 40 09.0 -35 37 34   13.44   12.68 13.3 ~ 85 1
21 IC 342 SBG 03 46 48.514 +68 05 45.98   10.5       ~ 1397 1
22 UGCA 86 G 03 59 49.4 +67 08 38   14.2 14.2     ~ 94 0
23 UGCA 92 G 04 32 04.9 +63 36 49   16.15       ~ 117 0
24 NGC 1841 GlC 04 45 23 -83 59.8   12.23 11.43     ~ 172 0
25 NGC 1898 As* 05 16 45.380 -69 39 16.76   12.62 11.86     ~ 88 0
26 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15050 1
27 ESO 121-20 G 06 15 54.2 -57 43 31   15.85   15.49 15.6 ~ 48 1
28 UGC 3755 G 07 13 51.66 +10 31 15.6   14.9       ~ 87 0
29 ESO 59-1 G 07 31 18.2 -68 11 16   13.74   12.80 13.7 ~ 61 1
30 UGC 3974 G 07 41 56.3061361330 +16 48 07.439323443   15.4       ~ 205 0
31 UGC 4115 G 07 57 01.027 +14 23 47.66   16.0       ~ 131 0
32 UGC 4426 G 08 28 28.560 +41 51 27.13   18       ~ 135 0
33 LEDA 2806961 G 09 08 53.700 +14 35 02.05           ~ 36 0
34 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4009 5
35 NAME IKN G 10 08 05.9 +68 23 57           ~ 61 0
36 NGC 4163 LSB 12 12 09.108 +36 10 03.13 14.33 13.70 13.2 12.98   ~ 189 0
37 UGC 7242 G 12 14 08.89 +66 05 39.3   14.60       ~ 71 1
38 IC 779 GiC 12 19 38.753 +29 52 59.22   15.4       ~ 36 0
39 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5925 0
40 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1975 2
41 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6296 3
42 NAME CVn I Group GrG 12 32 48.3 +33 57 07           ~ 135 0
43 NGC 4605 GiG 12 39 59.381 +61 36 33.09   10.94   10.35   ~ 291 2
44 ESO 381-20 G 12 46 00.4 -33 50 17   14.24   13.50 14.0 ~ 77 0
45 ESO 269-58 G 13 10 32.9 -46 59 27   12.50   11.31   ~ 64 0
46 ESO 269-66 GiC 13 13 09.2 -44 53 23   14.14       ~ 52 0
47 LEDA 46680 G 13 22 02.1 -42 32 10   16.6       ~ 44 0
48 LEDA 2815822 G 13 22 12.7 -42 43 41   18.5       ~ 31 0
49 NGC 5237 IG 13 37 39.056 -42 50 48.90   13.26 12.67 12.34   ~ 93 1
50 UGC 8638 EmG 13 39 19.348 +24 46 27.77 15.21 14.84 14.46 14.29   ~ 76 0
51 UGC 8760 G 13 50 51.3121098935 +38 01 14.956142286 15.56 14.78   14.33   ~ 132 0
52 ESO 384-16 G 13 57 01.6 -35 19 58   14.80   14.10   ~ 48 0
53 ESO 223-9 G 15 01 08.4 -48 17 33   12.3   12.5 12.6 ~ 69 0
54 ESO 274-1 G 15 14 13.429 -46 48 33.12   12.00   10.97 11.3 ~ 93 0
55 ESO 137-18 GiG 16 20 58.352 -60 29 27.48   12.23   11.03 11.9 ~ 57 0
56 ESO 461-36 G 20 03 57.4 -31 40 53   17.06   16.2 16.1 ~ 66 1
57 NAME Local Group GrG ~ ~           ~ 7108 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:10:55

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