Cosmological implications of heavy dark matter particles Original Research Article

We apply a statistical approach based on the modified Zelʹdovich approximation to study distribution of dark matter and its concentration within large scale structure elements. Using this approach, we can investigate the expected dependence of structure characteristics upon the mass of dark matter particles and/or the shape of small scale power spectrum of initial density perturbations. We show that the characteristics obtained with truncated power spectra used in numerical simulations could differ from those expected to arise from the generic ones.