Concept information
Preferred term
Dwarf elliptical galaxies
Definition
- A galaxy that is much smaller than other members of the elliptical class; it is designated as dE. A subtype of dwarf ellipticals is called a dwarf spheroidal galaxy (dSph). The basic characteristics of the class are low surface brightness and smooth light distribution. They range in luminosity from that of the faintest dSph galaxies M_V ~ -9 to about -17. In the Local Group there are 19 known dEs. They are very common in galaxy clusters. (en)
Broader concept
- Dwarf galaxies (en)
Narrower concepts
Entry terms
- dE (en)
- dEs (en)
- Dwarf ellipticals (en)
Contributor
URI
http://astrothesaurus.org/uat/415
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