SIMBAD references

2007MNRAS.382.1342F - Mon. Not. R. Astron. Soc., 382, 1342-1352 (2007/December-2)

Compact stellar systems around NGC1399.


Abstract (from CDS):

We have obtained spectroscopic redshifts of colour-selected point sources in four wide area VLT-FLAMES (Very Large Telescope-Fibre Large Array Multi Element Spectrograph) fields around the Fornax cluster giant elliptical galaxy NGC1399, identifying as cluster members 27 previously unknown faint compact stellar systems (CSS), and improving redshift accuracy for 23 previously catalogued CSS.

By amalgamating our results with CSS from previous 2dF observations and excluding CSS dynamically associated with prominent (non-dwarf) galaxies surrounding NGC1399, we have isolated 80 `unbound' systems that are either part of NGC 1399's globular cluster (GC) system or intracluster GCs. For these unbound systems, we find (i) they are mostly located off the main stellar locus in colour-colour space; (ii) their projected distribution about NGC 1399 is anisotropic, following the Fornax cluster galaxy distribution, and there is weak evidence for group rotation about NGC 1399; (iii) their completeness-adjusted radial surface density profile has a slope similar to that of NGC 1399's inner GC system; (iv) their mean heliocentric recessional velocity is between that of NGC 1399's inner GCs and that of the surrounding dwarf galaxies, but their velocity dispersion is significantly lower; (v) bright CSS (MV< -11) are slightly redder than the fainter systems, suggesting they have higher metallicity; (vi) CSS show no significant trend in g' - i' colour index with radial distance from NGC 1399.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: clusters: individual: Fornax cluster - galaxies: distances and redshifts - galaxies: individual: NGC 1399 - galaxies: kinematics and dynamics - galaxies: star clusters

VizieR on-line data: <Available at CDS (J/MNRAS/382/1342): table2.dat>

Nomenclature: Table 2: [FDE2007] N=32+27.

CDS comments: In Chap. 4. : UCD 3 = FCOS 1-2053, In chap 2.4 : UCD 22 = FCOS 4-2028.

Simbad objects: 96

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