Browsing by Author "Kissler-Patig, M."
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- ItemConstraints on the Merger Models of Elliptical Galaxies From Their Globular Cluster Systems(1998) Kissler-Patig, M.; Minniti, D.
- ItemExtragalactic globular clusters in the near infrared - III. NGC 5846 and NGC 7192 - Quantifying the age distribution of sub-populations(2003) Hempel, M.; Hilker, M.; Kissler-Patig, M.; Puzia, T.H.; Minniti, D.; Goudfrooij, P.In this third paper of our series on near-IR and optical photometry of globular cluster systems in early-type galaxies we concentrate on the photometric results for NGC 5846 and NGC 7192, two group ellipticals, and on a first comparison between the globular cluster systems investigated so far. In NGC 5846 the colour-colour diagram shows clear bi-modality in (V - K), which is confirmed by a KMM test. The mean colour of both peaks were estimated to be (V - K)(blue) = 2.57 +/- 0.06 and (V - K)(red) = 3.18 +/- 0.06. The situation in NGC 7192 is different, in that the colour-colour diagram gives no evidence for a distinct second population of globular clusters. Using simulated colour distributions of globular cluster systems, we make a first step in quantifying the cumulative age distribution in globular cluster systems. Also here the result for NGC 5846 leads us to the conclusion that its metal-rich globular cluster population contains two globular cluster populations which differ in age by several Gyr. The age structure for NGC 7192 shows instead strong similarity with a single-age population.
- ItemExtragalactic Globular Clusters in the Near Infrared I.A Comparison Between M87 and NGC 4478(2002) Kissler-Patig, M.; Minniti, D.
- ItemThe nature of UCDs(2008) Mieske, S.; Hilker, M.; Jordan, A.; Infante, L.; Kissler-Patig, M.; Rejkuba, M.; Richtler, T.; Cote, P.; Baumgardt, H.; West, M. J.; Ferrarese, L.; Peng, E. W.Context. The internal dynamics of ultra-compact dwarf galaxies (UCDs) has attracted increasing attention, with most of the UCDs studied to date located in the Virgo cluster.
- ItemThe transition between star clusters and dwarf galaxies. On the existence of a mass-radius relation for star clusters of masses > 10-7 Mo: are these objects formed in mergers of stellar systems?(2006) Kissler-Patig, M.; Jordán Colzani, Andrés Cristóbal
- ItemTowards and Understanding of the Globular Cluster Over-Abundance Around the Central Giant Elliptical Ngc 1399(1999) Kissler-Patig, M.; Minniti, D.