Primeval galaxies and cold dark matter

Details Primeval galaxies and cold dark matter Primeval galaxies and cold dark matter

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323l.107s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 323, Dec. 15, 1987, p. L107-L111. NASA-NSF-supporte

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Computation

24

Cosmology, Dark Matter, Galactic Evolution, Star Formation, Computational Astrophysics, Density Distribution, Galactic Nuclei, Luminosity, Quasars, Red Shift

Scientific paper

In the context of the cold dark matter theory for the large-scale matter distribution, the onset of galaxy formation is a gradual process, with star formation being initiated at z = about 10 and reaching a peak for luminous galaxies at z = about 1. The mass function of galaxy cores matches the observed quasar luminosity function at z = 2-3. Primeval galaxies are envisaged as a collection of many interacting and merging clumps, attaining a peak luminosity that is an order of magnitude below that achieved in models in which galaxy formation is initiated abruptly. Hence, ongoing searches for primeval galaxies would not necessarily have been successful unless they are designed to find moderately low-luminosity, low-surface-brigtness extended objects at low redshift.

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