Determination of the Thickness of Non-Edge-on Disk Galaxies

Details Determination of the Thickness of Non-Edge-on Disk Galaxies Determination of the Thickness of Non-Edge-on Disk Galaxies

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004chjaa...4...51z&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 4, p. 51-60.

Astronomy and Astrophysics

Astrophysics

6

Galaxies: Non-Edge-On Galaxies, Galaxies: Spiral, Thickness: Density Wave Theory

Scientific paper

We propose a method to determine the thickness of non-edge-on disk galaxies from their observed structure of spiral arms, based on the solution of the truly three-dimensional Poisson's equation for a logarithmic disturbance of density and under the condition where the self-consistency of the density wave theory is no longer valid. From their measured number of arms, pitch angle and location of the innermost point of the spiral arms, we derive and present the thicknesses of 34 spiral galaxies.

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