Spiral windows for escaping stars

Authors
Navarro, JF Henrard, J
Citation
Jf. Navarro et J. Henrard, Spiral windows for escaping stars, ASTRON ASTR, 369(3), 2001, pp. 1112-1121
Citations number
19
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
369
Issue
3
Year of publication
2001
Pages
1112 - 1121
Database
ISI
SICI code
0004-6361(200104)369:3<1112:SWFES>2.0.ZU;2-J
Abstract
The "escape windows" through which stars may escape from a galaxy are inves tigated by means of Poincare sections of a simplified axi-symmetric model o f the potential. The spiral shape of the windows are analyzed in details by constructing a normal form in the vicinity of an unstable periodic orbit.