On the Schwarzschild velocity distribution of the local stellar disk

Authors
Griv, E Gedalin, M Eichler, D
Citation
E. Griv et al., On the Schwarzschild velocity distribution of the local stellar disk, ASTROPHYS J, 555(1), 2001, pp. L29-L32
Citations number
42
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
555
Issue
1
Year of publication
2001
Part
2
Pages
L29 - L32
Database
ISI
SICI code
0004-637X(20010703)555:1<L29:OTSVDO>2.0.ZU;2-R
Abstract
The reaction between aperiodically growing Jeans-type gravity perturbations and stars in a rapidly rotating disk is analyzed with quasi-linear theory. The theory, applied to the solar neighborhood in the Galaxy, accounts for the observed Schwarzschild (anisotropic Maxwellian) shape for the stellar v elocity ellipsoid and the increase in the random stellar velocities with ag e.