Galactic models in the light of collision dynamics. I - Models without halos

Details Galactic models in the light of collision dynamics. I - Models without halos Galactic models in the light of collision dynamics. I - Models without halos

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.163..127c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 163, no. 1, Jan. 1990, p. 127-142.

Astronomy and Astrophysics

Astrophysics

6

Astronomical Models, Collision Parameters, Interacting Galaxies, Spiral Galaxies, Andromeda Galaxy, Mass Distribution, Milky Way Galaxy, Velocity Distribution

Scientific paper

A simple and flexible model of a spiral galaxy is developed in the light of the study of the dynamics of colliding galaxies. Such interactions are strongly characterized by the binding energy distributions of the systems involved. The main criterion used in constructing the model is its compatibility with the observed shapes and intensity distribution of light of spirals. The model basically consists of a thick exponential disk component and a spherical polytropic bulge component. The relevant quantities pertaining to the model, significant for dynamical studies, are computed and analyzed.

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