Abstract
view Abstract Citations (38) References (27) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Protogalactic evolution Silk, J. Abstract The high star formation rate in a gas-rich protogalaxy provides a substantial energy and momentum input into the interstellar gas and is capable of regulating the rate of gas collapse and star formation. Wind support of protogalactic gas is found to be inevitable over the density range where a steady wind is quenched by effective cooling and ensuing thermal instability, but where the energy input suffices to support the gas against collapse. Wind stripping constrains the star formation efficiency and masks the role of the primordial density fluctuation spectrum in determining the characteristic properties of the old stellar components. The observed mean density and metallicity dependences on stellar velocity dispersion of the spheroidal and old disk components of galaxies are in reasonable accord with predictions of this model. Publication: The Astrophysical Journal Pub Date: October 1985 DOI: 10.1086/163497 Bibcode: 1985ApJ...297....9S Keywords: Cosmology; Energy Transfer; Galactic Evolution; Stellar Evolution; Universe; Hubble Diagram; Interstellar Gas; Momentum Transfer; Morphology; Star Formation Rate; Astrophysics full text sources ADS |
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