Spiral Shape and Mass Distribution in Five Grand Design Spiral Galaxies

Details Spiral Shape and Mass Distribution in Five Grand Design Spiral Galaxies Spiral Shape and Mass Distribution in Five Grand Design Spiral Galaxies

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aspc..275..311t&link_type=abstract

Disks of Galaxies: Kinematics, Dynamics and Peturbations, ASP Conference Proceedings, Vol. 275. Edited by E. Athanassoula, A. Bo

Astronomy and Astrophysics

Astronomy

1

Scientific paper

In previous work we have established a relationship between the shape of the arms in grand-design spiral galaxies and the distribution of mass in their discs. Here we apply this relationship to derive disc mass distributions for five selected galaxies. Our preliminary results indicate that the disc mass--luminosity ratio is low, on average about 3 at the scale radius of the exponential luminosity distribution. No large amounts of dark matter seems to be present in these discs.

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