NASA NTRS · 19890052965
Chemical evolution of viscously evolving galactic discs
Abstract
The ability of the Lin-Pringle (1987) model of galactic disk formation to reproduce the observed radial distributions of total gas surface density and metals in disk galaxies is investigated. It is found that a satisfactory fit is obtained provided that there exists an outer cut-off to the star-forming disk beyond which gas is allowed to viscously evolve. The metallicity gradient is then established by radial inflow of gas from beyond this cut-off.
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Clarke, Catherine J.. 1989-05-01. Chemical evolution of viscously evolving galactic discs. https://ntrs.nasa.gov/citations/19890052965
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