The evolution of dwarf galaxies
Open Access
- 1 August 1988
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 233 (3) , 553-559
- https://doi.org/10.1093/mnras/233.3.553
Abstract
We propose an evolutionary model for dwarf galaxies in which initially metal-poor gas-rich dwarf irregular galaxies evolve through bursting blue compact dwarf stages and eventually fade from the blue compact dwarf phase to become dwarf ellipticals. During the bursting phase the surface brightness of the galaxy increases rapidly due to enhanced OB star formation. The source of fuel for the intermittent bursts of star formation is assumed to be primordial gas which continues to collapse on the already-formed central structure. The dE galaxies form as a result of eventual gas depletion through star formation.Keywords
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