Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1779588 | New Astronomy | 2009 | 8 Pages |
Abstract
Cosmological limits on neutrino masses are softened, by more than a factor 2, if Cold Dark Matter (CDM) and Dark Energy (DE) are coupled. In turn, a neutrino mass yielding Ων up to â¼0.20 allows coupling levels βâ0.15 or more, already easing the coincidence problem. The coupling, in fact, displaces both P(k) and Cl spectra in a fashion opposite to neutrino mass. Estimates are obtained through a Fisher-matrix technique.
Related Topics
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Authors
G. La Vacca, S.A. Bonometto, L.P.L. Colombo,