Non-linear density evolution from an improved spherical collapse model
نویسندگان
چکیده
منابع مشابه
Nonlinear density evolution from an improved spherical collapse model
We investigate the evolution of nonlinear density perturbations by taking into account the effects of shear and angular momentum of the system. Starting from the standard spherical top hat model in which these terms are ignored, we introduce a physically motivated closure condition which specifies the dependence of these terms on δ. The modified equation can be used to model the behavior of an ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2000
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2000.03275.x