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Do Spiral Galaxies have a Variable Disk Thickness?

Published online by Cambridge University Press:  04 August 2017

Kristen Rohlfs
Kristen Rohlfs*
Affiliation:
Lehrstuhl für Astrophysik der Ruhr-Universität Bochum

Abstract

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Estimating the forces in the z-direction that affect the disks of spiral galaxies in reasonable galactic mass models we find (Rohlfs and Kreitschmann 1981) that all external forces are small compared to the self-gravity of the disk so that Spitzer's (1942) self-consistent sheet model should give a good description for the z-distribution of the disk where it is well visible. But then the three parameters describing this shape are connected by the formula

Type
I. Kinematics of Gas and the Underlying Mass Distribution
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 77 - 79
Copyright
Copyright © Reidel 1983 

References

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