2003AJ....125.1291S

Query : 2003AJ....125.1291S

2003AJ....125.1291S - Astron. J., 125, 1291-1297 (2003/March-0)

Spectroscopy of globular clusters in the Fornax dwarf galaxy.

STRADER J., BRODIE J.P., FORBES D.A., BEASLEY M.A. and HUCHRA J.P.

Abstract (from CDS):

We present low-resolution, integrated Keck spectra of the five globular clusters (GCs) of the Fornax dwarf spheroidal galaxy. We find a tentative age spread among the clusters, with the GC H5 younger by 2-3 Gyr than the others. The clusters generally appear to be very metal-poor ([Fe/H]~-1.8), with the cluster H4 slightly more metal-rich at [Fe/H]=-1.5. We speculate that cluster H4 is similar to the Galactic GC Ruprecht 106, which lacks the [α/Fe] enhancement typical among metal-poor GCs in the Milky Way. High-resolution spectroscopy of individual cluster and field stars will be needed to sort out the surprisingly complex history of GC formation and evolution in this galaxy.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Dwarf - Galaxies: Individual: Name: Fornax - Galaxies: Star Clusters - Galaxies: Local Group

Simbad objects: 23

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Number of rows : 23
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 Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
2 NAME Fornax H1 Cl* 02 37 02.1 -34 11 00     16.59     ~ 107 0
3 NAME Fornax H2 GlC 02 38 44.24 -34 48 30.5   14.5       ~ 93 0
4 NAME Fornax H3 GlC 02 39 48.16 -34 15 28.6   13.59       ~ 131 0
5 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
6 NAME Fornax H4 GlC 02 40 07.697 -34 32 10.59   15.18 13.91 14.08   ~ 112 0
7 NAME Fornax H5 GlC 02 42 21.111 -34 06 05.80   14.5       ~ 101 0
8 NGC 1916 Cl* 05 18 37.87 -69 24 22.9   11.16 10.38     ~ 94 0
9 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
10 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
11 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
12 Cl Ruprecht 106 GlC 12 38 40.20 -51 09 01.0           ~ 413 0
13 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
14 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
15 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
16 GCl 66.1 GlC 17 30 38.90 -31 35 44.0           ~ 139 0
17 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
18 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
19 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
20 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 460 0
21 Cl Arp 2 GlC 19 28 44.11 -30 21 20.3     12.41     ~ 384 0
22 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 548 0
23 NAME Local Group GrG ~ ~           ~ 9325 0

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