The phase space density in elliptical galaxies

Details The phase space density in elliptical galaxies The phase space density in elliptical galaxies

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...310..593c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 310, Nov. 15, 1986, p. 593-596. NSERC-supported research.

Astronomy and Astrophysics

Astrophysics

105

Elliptical Galaxies, Galactic Evolution, Galactic Structure, Space Density, Density Distribution, Luminosity, Many Body Problem

Scientific paper

The phase space mass densities of the cores of elliptical galaxies are found to generally exceed the phase space mass densities in galactic disks. Since the phase space density can never increase in a collisionless process, these data argue against the lower luminosity (MB fainter than -22) ellipticals being normally formed from stellar disks. It does leave open the possibility that subsequent dissipation of a gas component could increase the core densities to the large values required. A series of one-dimensional gravitational experiments shows a small region in the core which retains the initial phase space density. However, the observable phase density in the core is conserved only if the initial system has large random velocities.

Affiliated with

Also associated with

No associations

Rating

The phase space density in elliptical 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 The phase space density in elliptical galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The phase space density in elliptical galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1148854