The evolution of dwarf galaxies

Details The evolution of dwarf galaxies The evolution of dwarf galaxies

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.233..553d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 233, Aug. 1, 1988, p. 553-559.

Astronomy and Astrophysics

Astronomy

109

B Stars, Dwarf Galaxies, Galactic Evolution, O Stars, Stellar Evolution, Mass To Light Ratios, Metallicity

Scientific paper

The authors 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.

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