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The Dynamics of the Spiral Galaxy M81

Published online by Cambridge University Press:  14 August 2015

H.C.D. Visser
H.C.D. Visser*
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, The Netherlands

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The spiral galaxy M81 is a challenging object for testing a density-wave theory. It is of large angular size and favourably inclined to the line of sight; radio observations of neutral atomic hydrogen showing well defined spiral arms with noncircular motions are available (Rots and Shane 1975), and there is evidence from surface photometry for density waves in the old disk population (Schweizer 1976). Can these observations be unified in one density-wave model?

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 77: Structure and Properties of Nearby Galaxies , 1978 , pp. 105 - 112
Copyright
Copyright © Reidel 1978 

References

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