The globular cluster system of the isolated elliptical NGC 6411: An old system in an intermediate-age galaxy?

Abstract

We present a photometric study of the isolated elliptical NGC 6411 and its globular cluster (GC) system, based on Gemini/GMOS g', r', i' photometry. This galaxy has been the host of a SNIa. Spectral studies indicate an intermediate-age and very metal-rich stellar population in its inner region. The extent of the globular cluster system is about 65 kpc. Its population contains $700\pm 45$ members, implying a rather poor system, as normally found for isolated ellipticals. The colour bimodality and luminosity distribution are typical of old GC systems. An excess of bright GCs with intermediate colours might evidence an intermediate-age merger, but their colours indicate an older event than ages derived from spectroscopic studies of the diffuse light of the galaxy.

Accepted in MNRAS

References in corpus (22)

• Evolutionary Stellar Population Synthesis with MILES. Part I: The Base Models and a New Line Index System
• Galaxy Zoo: the dependence of morphology and colour on environment
• The ACS Virgo Cluster Survey XV. The Formation Efficiencies of Globular Clusters in Early-Type Galaxies: The Effects of Mass and Environment
• The ACS Virgo Cluster Survey. XII. The Luminosity Function of Globular Clusters in Early Type Galaxies
• The AIMSS Project I: Bridging the Star Cluster - Galaxy Divide
• Large-scale study of the NGC 1399 globular cluster system in Fornax
• Modeling the Formation of Globular Cluster Systems in the Virgo Cluster
• Dark Matter Halos in Galaxies and Globular Cluster Populations. II: Metallicity and Morphology
• Globular Cluster Systems in Brightest Cluster Galaxies: A Near-Universal Luminosity Function?
• The connection between globular cluster systems and their host galaxy and environment: a case study of the isolated elliptical NGC 821
• The Globular Cluster Systems in the Coma Ellipticals. IV: WFPC2 Photometry for Five Giant Ellipticals
• Erosion of Globular Cluster Systems: The Influence of Radial Anisotropy, Central Black Holes and Dynamical Friction
• A morphology revaluation of galaxies in common from the Catalog of Isolated Galaxies and the Sloan Digital Sky Survey (DR6)
• The complex star cluster system of NGC 1316 (Fornax A)
• Isolated ellipticals and their globular cluster systems III. NGC 2271, NGC 2865, NGC 3962, NGC 4240 and IC 4889
• The extremely populated globular cluster system of the lenticular galaxy NGC 6861
• Evolution of star cluster systems in isolated galaxies: first results from direct $N$-body simulations
• Globular cluster systems as tracers of the evolutionary history in NGC 3258 and NGC 3268
• Isolated elliptical galaxies and their globular cluster systems. II. NGC 7796 - globular clusters, dynamics, companion
• The merger remnant NGC 3610 and its globular cluster system: a large-scale study
• The globular cluster system of NGC1316. III. Kinematic complexity
• Globular cluster systems of early-type galaxies - do we understand them?

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• A Gemini/GMOS study of the bright elliptical galaxy NGC 3613 and its globular cluster system
• J-PLUS: A catalogue of globular cluster candidates around the M81/M82/NGC3077 triplet of galaxies
• Wide-field study of the peculiar globular cluster system hosted by the field lenticular NGC 1172
• Identifying the possible ex-situ origin of the globular clusters of the Milky Way: A kinematic study