Abstract
view Abstract Citations (181) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Formation of the Exponential Disk in Spiral Galaxies Lin, D. N. C. ; Pringle, J. E. Abstract The authors propose a mechanism for the formation of the exponential stellar disk distribution in spiral galaxies. It is assumed that the gas which falls in to form the disk behaves like an accretion disk which evolves on a viscous time scale tv and forms stars on a time scale t*. The authors demonstrate that if tv ≈ t* the resulting stellar disk has an exponential distribution independent of the disk rotation law and of the assumed viscosity prescription. They comment briefly on why the viscous and star formation time scales might be related. Publication: The Astrophysical Journal Pub Date: September 1987 DOI: 10.1086/184981 Bibcode: 1987ApJ...320L..87L Keywords: Angular Momentum; Disk Galaxies; Exponential Functions; Galactic Evolution; Spiral Galaxies; Stellar Evolution; Computational Astrophysics; Stellar Luminosity; Astrophysics; GALAXIES: FORMATION; GALAXIES: STRUCTURE; STARS: FORMATION full text sources ADS |
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