A further study of the solution of Poisson's equation for three-dimensional spiral galaxies

Details A further study of the solution of Poisson's equation for three-dimensional spiral galaxies A further study of the solution of Poisson's equation for three-dimensional spiral galaxies

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984acasn..25..356b&link_type=abstract

(Acta Astronomica Sinica, vol. 25, no. 4, 1984, p. 356-363) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 10, June 1

Astronomy and Astrophysics

Astrophysics

1

Astronomical Models, Density Distribution, Poisson Equation, Spiral Galaxies, Three Dimensional Bodies, Galactic Structure, Gravitational Fields, Three Dimensional Models

Scientific paper

A three-dimensional model is considered of spiral arms, which are in the form of logarithmic spirals in the galactic plane and falling off exponentially in the perpendicular direction. An analytic solution of the gravitational potential corresponding to this density perturbation is derived. The effect of the finite thickness on the spiral pattern and the question of stability of the spiral arms are discussed.

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