On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution.

Details On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution. On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution.

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998acasn..39..153f&link_type=abstract

Acta Astron. Sin., Vol. 39, No. 2, p. 153 - 164

Other

1

Galaxies: Stellar Dynamics, Galaxy Evolution

Scientific paper

The authors study the long-term evolution of spheroidal galaxies with Laskar's method of frequency analysis. The main results are: (1) there exists a unique equilibrium, which is spherically symmetric. This equilibrium has a critical linear stability. (2) Generally speaking, the semi-axes exhibit quasi-periodic or nearly quasi-periodic (in a time scale longer than a Hubble time) oscillations around the radius of the above-mentioned equilibrium, so the equilibrium is practically stable. (3) There are cases in which one of the semi-axes tends fast to zero while the other to some finite value. The limit state is generally planar rather than linear. This implies that some disk galaxies may have originated from spheroidal pregalaxy material.

Affiliated with

Also associated with

No associations

Rating

On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution. 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 On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the long-term evolution of spheroidal galaxies with locally isotropic velocity distribution. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1366043