The kinematical evolution of the Galactic disk

We present preliminary results from follow-up observations of a carefully selected sample of subgiant stars from RAVE and Geneva-Copenhagen surveys. We find evidence of rapid saturation of the heating mechanism in the disk, with an abrupt increase of the velocity dispersion for stars older than 9 Gy...

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Bibliographic Details
Main Authors: Steinmetz M., Freeman K., Anguiano B., de Boer E.W.
Format: Article
Language:English
Published: EDP Sciences 2012-02-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20121905009