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The Central Dynamics of Blue Low Surface Brightness Galaxies

Published online by Cambridge University Press:  26 May 2016

Erik Zackrisson  and
Nils Bergvall
Erik Zackrisson
Affiliation:
Uppsala Astronomical Observatory, Box 515, SE 751 20 Uppsala, Sweden
Nils Bergvall
Affiliation:
Uppsala Astronomical Observatory, Box 515, SE 751 20 Uppsala, Sweden

Abstract

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We use optical, long-slit rotation curves to derive the slope of the central density profile in three blue disk galaxies with very faint central surface brightness values. We find the result to be in conflict with current cold dark matter predictions and to lend further support for pseudo-isothermal spheres as superior models for the dark halos of galaxies.

Type
Part 10: Low Surface Brightness Galaxies
Information
Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 335 - 336
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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