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OATS-DAUT SEMINAR
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Speaker: Francesco Pace (Institut fur Theoretische Astrophysik, Heidelberg, Germany)

Title: Structure formation and Spherical Collapse Model in dark energy models
Date: Tuesday, April 27th, 2010
Time: 12:00
Venue: Villa Bazzoni

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Abstract: Despite efforts from both observational and theoretical sides, the nature of the dark energy remains obscure. Consequently, a plethora of different models has been proposed for the origin and the time evolution of the dark energy. Despite the fact that observations constrain the present value of w quite tightly, the time evolution of the equation-of-state parameter is rather poorly constrained. I will present results on structure formation for different class of dark energy models, with and without dark energy clumps. I also shortly review the numerical techniques necessary for the spherical collapse approach.
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contact: Fabio Fontanot (OATS)