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The Tully-Fisher relation of spiral galaxies

Published online by Cambridge University Press:  08 November 2005

I. Yegorova  and
P. Salucci
I. Yegorova
Affiliation:
SISSA, Via Beirut 2/4 Trieste, Italy email: yegorova@sissa.it
P. Salucci
Affiliation:
SISSA, Via Beirut 2/4 Trieste, Italy email: yegorova@sissa.it
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Abstract

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The Tully-Fisher (TF) relation is an empirically establish correlation between the luminosity of a spiral galaxy and its rotational velocity (Tully-Fisher, 1977). We used the Tully-Fisher relation to probe the dark matter (DM) distribution in the optical regions of spiral galaxies. We investigated a sample of rotation curves that includes 957 galaxies. We applied a new technique that takes advantage of the full knowledge of the galaxy rotation curves.

Keywords

galaxies: kinematics and dynamicsdark matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 267 - 268
Copyright
© 2005 International Astronomical Union