A model of a steadily rotating prolate galaxy in Newtonian theory

Citation
Ps. Florides et Nk. Spyrou, A model of a steadily rotating prolate galaxy in Newtonian theory, ASTRON ASTR, 361(1), 2000, pp. 53-59
Citations number
45
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
361
Issue
1
Year of publication
2000
Pages
53 - 59
Database
ISI
SICI code
0004-6361(20000901)361:1<53:AMOASR>2.0.ZU;2-W
Abstract
A model of a prolate galaxy in constructed within the framework of Newtonia n theory of gravity. The model consists of a central perfect-fluid gravitat ing prolate spheroid rotating steadily about its axis of symmetry and two g alaxies of equal masses, which are situated on the prolate spheroid's axis of symmetry and at equal distances from its centre on either of its sides. It is shown that for physically acceptable ranges of the values of the mass es of the two companion galaxies and of their distances from the prolate sp heroid's centre such a model is possible in Newtonian theory. The astrophys ical significance of the model is discussed as well as the fact that its ex istence can be verified observationally.