A Catalog of Edge-On Disk Galaxies : From Galaxies with a Bulge to Superthin Galaxies

Abstract

Spiral galaxies range from bulge-dominated early-type galaxies to late types with little or no bulge. Cosmological models do not predict the formation of disk-dominated, essentially bulgeless galaxies, yet these objects exist. A particularly striking and poorly understood example of bulgeless galaxies are flat or superthin galaxies with large axis ratios… (More)

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