The dynamic evolution of the Galactic disk

Details The dynamic evolution of the Galactic disk The dynamic evolution of the Galactic disk

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988s%26w....27..150f&link_type=abstract

Sterne und Weltraum (ISSN 0039-1263), vol. 27, March 1988, p. 150-153. In German.

Other

Disk Galaxies, Galactic Evolution, Gravitational Fields, Molecular Clouds, Spiral Galaxies, Stochastic Processes, Astronomical Models, Spatial Distribution, Velocity Distribution

Scientific paper

Theoretical models and observational evidence for the dynamic evolution of the Galactic disk and the disks of other spiral galaxies are reviewed. Consideration is given to the age-dependent velocity dispersion and spatial distribution of stars, collective instabilities of galactic disks, stochastic heating mechanisms, adiabatic cooling and heating, and scattering processes with primarily deflecting effects. It is shown that inhomogeneities in the Galactic gravitational field can account for the axial components of the three-dimensional velocity distribution of the stars without contributing significantly to the stochastic heating of the Galactic disk. The relaxation time scale for deflection by giant molecular clouds is found to be of order 1 Gyr.

Affiliated with

Also associated with

No associations

Rating

The dynamic evolution of the Galactic disk 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 dynamic evolution of the Galactic disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dynamic evolution of the Galactic disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1692944