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Article overview
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The properties of ultra-compact dwarf galaxies and their possible origin | | Michael Hilker
; Steffen Mieske
; | | Date: |
6 Dec 2004 | | Journal: | Proc.Sci. BDMH2004 (2004) 038 | | Subject: | astro-ph | | Affiliation: | Sternwarte Univ. Bonn, Germany | | Abstract: | In this contribution the discovery and properties of ultra-compact dwarf galaxies are presented, and their possible origin is discussed. This new type of galaxy resides in the cores of galaxy clusters. In the fundamental plane diagram of stellar systems, the luminosity and kinematical and structural properties of ultra-compact dwarfs locate them inbetween globular clusters and small compact ellipticals (like M32). This regime would also be occupied by nuclei of dwarf ellipticals if they were isolated from their galactic envelope or by the merger product of super star-cluster complexes as they are found in strongly interacting galaxies. Future investigations of ultra-compact dwarfs in different environments have to show which of these formation scenarios is to be favoured. | | Source: | arXiv, astro-ph/0412130 | | Services: | Forum | Review | PDF | Favorites | |
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