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Galaxy Formation and Baryonic Dark Matter

Published online by Cambridge University Press:  26 May 2016

Françoise Combes
Françoise Combes*
Affiliation:
Observatoire de Paris, 61 Av. de l'Observatoire, F-75 014, Paris, France

Abstract

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The ACDM scenario to form galaxies encounters many problems when confronted with observations, namely the prediction of dark matter cusps in all galaxies, and in particular in dwarf irregulars, dominated by dark matter, or the low angular momentum and consequent small size of galaxy disks, or the high predicted number of small systems. We will consider the hypothesis that the baryonic dark matter could be in the form of gas and could be continuously involved in the galaxy formation scenario. By accreting cold gas throughout a galaxy's life, angular momentum could be increased, galaxy disks could be more dominated by baryons than previously thought, and small systems could merge more frequently.

Type
Part 7: Baryonic Dark Matter
Information
Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 219 - 226
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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