Outer Spiral Disks as Clues to Galaxy Formation and Evolution

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Contents Vol 27(3)

doi:10.1071/AS09067

Outer Spiral Disks as Clues to Galaxy Formation and Evolution

Marija Vlajić

^A Astrophysics, Department of Physics, Keble Road, University of Oxford, Oxford OX1 3RH, United Kingdom
^B Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006, Australia
^C Email: vlajic@astro.ox.ac.uk





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Publications of the Astronomical Society of Australia 27(3) 252–255 http://dx.doi.org/10.1071/AS09067
Submitted: 2 October 2009 Accepted: 19 January 2010 Published online: 17 June 2010

Abstract

Recent studies of outer spiral disks have given rise to an abundance of new results. We discuss the observational and theoretical advances that have spurred the interest in disk outskirts, as well as where we currently stand in terms of our understanding of outer disk structure, ages, and metallicities.

Keywords: galaxies: abundances — galaxies: evolution — galaxies: spiral — galaxies: stellar content — galaxies: structure