文章基本信息

标题：The Baryonic vs Dark Matter Halo Mass Relationship in Galaxies: the effect of the inefficiency of the Cosmolog. star formation
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作者：F. Shankar ; P. Salucci ; L. Danese 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2004
卷号：2004
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We derive the Baryonic Mass Function of galactic structures from their inner kinematics and prove its cosmological importance by showing its universal nature, its substantial independency of the method with which is derived. The present day amount of baryons estimated from the BMF is in good agreement with that obtained by integrating the star formation occurred in the Universe over the whole Hubble time. From the BMF and the theoretical Halos Mass Function of virialized objects, we obtain the relationship between the baryonic mass of a galaxy and its virial (total, dark) mass. We find that this relation clearly bears the effect of baryonic feedbacks occurred during the galaxy formation process, i.e. the supernovae explosions and the quasar activity, that have coupled the dark and ordinary matter in galaxies.