Invariant mass approach to the spiral structure of galaxies

Details Invariant mass approach to the spiral structure of galaxies Invariant mass approach to the spiral structure of galaxies

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..76..363t&link_type=abstract

Astrophysics and Space Science, vol. 76, no. 2, May 1981, p. 363-370.

Astronomy and Astrophysics

Astrophysics

6

Density Wave Model, Galactic Structure, Spiral Galaxies, Adiabatic Conditions, Approximation, Gravitational Fields, Perturbation Theory

Scientific paper

It has been suggested (Thielheim, 1980) that trailing spiral density waves in stellar disks may be produced as a response to the increase with time of a central elongated mass distribution rotating at a constant angular velocity in the center of a stellar disk. The present paper describes a simple procedure for estimating the shape of the density response in a stellar disk for given structures of the background and perturbing gravitational fields. The procedure is based on the first-order epicyclic and adiabatic approximation.

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