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Mixed Cold-Hot Dark Matter Model with several Massive Neutrino Types | Dmitri Pogosyan
; Alexei Starobinsky
; | Date: |
3 Feb 1995 | Journal: | In: Large Scale Structure in the Universe (Proc. of the 11th Potsdam Workshop on Relativistic Astrophysics, Potsdam, 19-24 Sept. 1994), eds. J.P. Mücket, S. Gottlöber, V. Müller, World Scientific (Singapore), 1995, pp. 118-122 | Subject: | astro-ph gr-qc hep-ph | Abstract: | Mixed cold-hot dark matter cosmological models (CHDM) with $Omega_{tot}=1$, approximately flat initial spectrum of adiabatic perturbations and 1, 2 or 3 types of massive neutrinos are compared and tested using recent observational data. The models with 2 or 3 neutrino types of equal mass permit as the best fit larger values of both the Hubble constant ($H_0le 60$ for 2 types, $H_0le 65$ for 3 types) and the total $Omega_{
u}$ (up to 0.3 for 3 types) than the model with 1 massive type. Also, they have less problems with abundances of early compact objects including $Ly-alpha$ clouds. | Source: | arXiv, astro-ph/9502019 | Services: | Forum | Review | PDF | Favorites |
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