PHASE-SPACE MODEL OF A COLLISIONLESS STELLAR CYLINDER EMBEDDED IN A ROTATING HALO. , 2016, V. 25, ppстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 апреля 2017 г.
Аннотация:The phase-space model of a stellar cylindrical bar embedded in a
rotating triaxial halo is constructed. The equations of motion of an individual
star in the bar are derived and solved. The model has three integrals of motion
and the condition of the cylinder boundary conservation is derived. The model is
found to represent a four-dimensional ellipsoid in six-dimensional phase space.
The phase-space distribution function of stars is derived, which depends on
isolating integrals of motion. The centroid velocity field describes longitudinal
shear averaged flows in the cylinder. Two non-zero components of the velocity
dispersion tensor depend quadratically on coordinates and vanish at the surface
of the cylindrical bar.