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The DiskMass Survey. I. Overview

By David R. Andersen, Rob A. Swaters, Marc A. W. Verheijen, Matthew A. Bershady, Kyle B Westfall and Thomas Martinsson


We present a survey of the mass surface-density of spiral disks, motivated by outstanding uncertainties in rotation-curve decompositions. Our method exploits integral-field spectroscopy to measure stellar and gas kinematics in nearly face-on galaxies sampled at 515, 660, and 860 nm, using the custom-built SparsePak and PPak instruments.

Year: 2010
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