The Milky Way and the Tully-Fisher relation
arXiv:astro-ph/0510515 · doi:10.1007/978-1-4020-5573-7_8
Abstract
We present an updated estimate of the surface density and surface brightness in B,V,I of the local Galactic disc, based on a model for the "Solar cylinder" calibrated to reproduce Hipparcos and Tycho star counts. We discuss the mass-to-light ratio of the local stellar disc and infer the global luminosity of the Milky Way, which results underluminous with respect to the Tully-Fisher relation.
arXiv comment4 pages, 5 figures, to appear in the proceedings of "Island Universes - Structure and Evolution of Disk Galaxies", R.S. de Jong (ed.)
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