A list of groups of dwarf galaxies in the local supercluster |
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| Authors: | D I Makarov R I Uklein |
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| Institution: | 1.Special Astrophysical Observatory,Russian Academy of Sciences,Nizhnii Arkhyz,Russia |
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| Abstract: | We report a list of groups consisting of dwarf galaxies only. The sample contains 126 objects, mainly combined in pairs. The
most populated group contains six dwarf galaxies. The majority of systems considered reside in the low-density regions and
evolve unaffected by massive galaxies. The characteristic sizes and velocity dispersions of groups are 30 kpc and 11 km/s,
respectively. They resemble the associations of dwarf galaxies, but are more compact. On the whole, groups and associations
form a continuous sequence. Alike the associations, our groups possess high mass-to-luminosity ratios, what is indicative
of a large amount of dark matter present in these systems. |
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