On the origin of dwarf galaxies

Details On the origin of dwarf galaxies On the origin of dwarf galaxies

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322l..59s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 322, Nov. 15, 1987, p. L59-L65. Research supported

Astronomy and Astrophysics

Astrophysics

126

Astronomical Models, Dwarf Galaxies, Galactic Evolution, Star Formation, Galactic Clusters, Intergalactic Media, Metallicity, Red Shift, Stellar Mass

Scientific paper

A new mechanism is proposed for producing vigorous bursts of star formation in metal-poor dwarf galaxies, at the present epoch. The intergalactic medium is heated and enriched by winds from dwarf galaxies at high redshift. This gas is compressed when galaxy groups form at the present epoch, and it cools and accretes onto slowly moving dwarf ellipticals. The authors describe several observable properties of the resulting gas-rich dwarfs, including the metallicities and the spatial distribution.

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