Deconstructing Disk Velocity Distribution Functions in the Disk-Mass Survey

K. B. Westfall, M. A. Bershady, M. A. W. Verheijen, D. R. Andersen, R. A. Swaters

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

We analyze integral-field ionized gas and stellar line-of-sight kinematics in the context of determining the stellar velocity ellipsoid for spiral galaxies observed by the Disk-Mass Survey. Our new methodology enables us to measure, for the first time, a radial gradient in the ellipsoid ratio σ_z/σ_R. Random errors in this decomposition are 15% at two disk scale-lengths.
Original languageEnglish
Title of host publicationFormation and Evolution of Galaxy Disks
Pages41
Volume396
Publication statusPublished - 1-Oct-2008
EventProceedings of the conference held 1-5 October, 2007 at the Centro Convegni Matteo Ricci, Rome, Italy - Centro Convegni Matteo Ricci, Rome, Italy
Duration: 1-Oct-20075-Oct-2007

Publication series

NameASP Conference Series
Volume396

Conference

ConferenceProceedings of the conference held 1-5 October, 2007 at the Centro Convegni Matteo Ricci, Rome, Italy
Country/TerritoryItaly
CityRome
Period01/10/200705/10/2007

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