1999A&AS..138...55H


Query : 1999A&AS..138...55H

1999A&AS..138...55H - Astron. Astrophys., Suppl. Ser., 138, 55-70 (1999/July-0)

The central region of the Fornax cluster. III. Dwarf galaxies, globular clusters, and cD halo - are there interrelations?

HILKER M., INFANTE L. and RICHTLER T.

Abstract (from CDS):

In this paper we briefly review the properties of the dwarf galaxy population at the core of the Fornax cluster, as well as the properties of the extraordinary rich globular cluster system and the cD halo around the central galaxy NGC 1399. In turn, the question whether a scenario in which dwarf galaxies have been accreted and dissolved in the cluster center can explain the observed properties is addressed. The possibility of accretion of a certain number of dwarf galaxies, the stripping of their globular clusters and gas, and the formation of new globular clusters from stripped infalling gas are discussed. An increase in the specific frequency of the central globular cluster system is only possible, if the infalling gas from stripped dwarfs formed globulars very efficiently and/or accreted and stripped dwarf galaxies possessed a rich globular cluster system themselves. In conclusion, we argue that although the dwarf galaxy infall is a very attractive scenario to explain a number of properties in the system there are probably other physical mechanisms that also take place.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Fornax cluster - galaxies: cD - galaxies: interaction - galaxies: star clusters

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1740 1
2 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4003 3
3 NGC 1374 EmG 03 35 16.5885737352 -35 13 34.563417168 12.46 11.97 11.08 10.59   ~ 297 1
4 NGC 1379 GiP 03 36 03.9668625792 -35 26 28.547476800 12.17 12.04 10.91 10.60   ~ 265 1
5 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1569 1
6 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1820 0
7 NGC 1427 GiG 03 42 19.4455150392 -35 23 33.169251120   11.89   10.44   ~ 281 0
8 NGC 3597 EmG 11 14 41.9796496464 -23 43 39.573399828   13.62   12.46   ~ 130 0
9 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6633 0
10 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2092 2
11 ACO 3526 ClG 12 48 51.8 -41 18 21           ~ 1065 2
12 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4793 2
13 NGC 5018 GiP 13 13 01.0452720960 -19 31 05.649751992   11.71   10.31   ~ 313 1
14 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14389 0
15 NGC 7252 EmG 22 20 44.7748209648 -24 40 41.909518200 12.26 12.46 12.06 11.57   ~ 703 1
16 NAME Local Group GrG ~ ~           ~ 8379 0

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