Julio F. Navarro
Dept. Astronomy, Univ. Victoria (Victoria, Canada)
, Institut d'Astrophysique de Paris
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| « Cold Dark Matter, Galaxy Formation, and the Formation of the Galaxy » |
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Julio F. Navarro |
| The Cold Dark Matter paradigm of structure formation has proved remarkably successful at accounting for the large-sale properties of the Universe, as measured by the clustering and motions of galaxies, as well as by the detailed structure of the temperature fluctuations in the Cosmic Microwave Background. Many of its "natural" predictions regarding the hierarchical assembly of galaxy systems, however, appear at odds with observational data on the dynamics of individual galaxies. I will examine the constraints that these data place on the small scale structure properties of a CDM-dominated universe. I will argue that current observational constraints are not inconsistent with the predictions of the CDM paradigm; rather, they highlight the importance of astrophysical processes in shaping the appearance of individual galaxies embedded in an evolving population of dark matter halos. |
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vendredi 26 novembre 2004 - 11:00 , Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |