Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-06-03
Astronomy and Astrophysics
Astrophysics
24 pages, 8 figures
Scientific paper
In this paper we study a stellar dynamic model for the stars' rotational-dynamics, with a distribution of its own mass, rotating around its center with a higher density like spiral galaxies happen, by means of a classical calculus of the rotation velocities of a particle around its rotation axis, inside a smoothed distribution of matter. The stars are supposed to be particles and their distribution in the galaxy is modelled as a matter distribution inversely proportional to its distance from its centre.. Two kinds of matter distribution are supposed: one with constant density, and other with radial distribution. Two types of galaxy symmetry are also considered: spherical and oblate ellipsoidal. Using only classical mechanics arguments it is shown that the calculated velocity distribution inside the galaxy is similar to that obtained from astronomical observations, without the necessity of suppose the existence of dark matter or other phenomena.
No associations
LandOfFree
Classical analysis of the rotational dynamic of spiral galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Classical analysis of the rotational dynamic of spiral galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classical analysis of the rotational dynamic of spiral galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-153951