Dwarf spiral galaxy
Dwarf counterparts of spiral galaxies
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Through Spiral galaxy, Parsec and Hydrogen
Dwarf spiral galaxies, particularly the dwarf counterparts of Sa–Sc type spiral galaxies, are quite rare. In contrast, dwarf elliptical galaxies, dwarf irregular galaxies, and the dwarf versions of Magellanic type galaxies (which may be considered transitory between spiral and irregular in terms of morphology) are very common.
It is suggested that dwarf spiral galaxies can transform into dwarf elliptical galaxies, especially in dense cluster environments.
Examples
- NGC 5474
- NGC 3928
- NGC 625
- NGC 1051
- NGC 1311
- NGC 5949
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Location
Most identified dwarf spiral galaxies are located outside clusters. Strong gravitational interactions between galaxies and interactions between galaxies and intracluster gas are expected to destroy the disks of most dwarf spiral galaxies. Nonetheless, dwarf galaxies with spiral-like structure have been identified within the Virgo Cluster and Coma Cluster.