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Abstract: We review the physical properties of nearby, relatively luminous galaxies,using results from newly available massive data sets together with moredetailed observations. First, we present the global distribution of properties,including the optical and ultraviolet luminosity, stellar mass, and atomic gasmass functions. Second, we describe the shift of the galaxy population from-late- galaxy types in underdense regions to -early- galaxy types in overdenseregions. We emphasize that the scaling relations followed by each galaxy typechange very little with environment, with the exception of some minor butdetectable effects. The shift in the population is apparent even at thedensities of small groups and therefore cannot be exclusively due to physicalprocesses operating in rich clusters. Third, we divide galaxies into four crudetypes - spiral, lenticular, elliptical, and merging systems - and describesome of their more detailed properties. We attempt to put these detailedproperties into the global context provided by large surveys.



Author: Michael R. Blanton, John Moustakas

Source: https://arxiv.org/







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