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Constraints on massive sterile plus active neutrino species in non minimal cosmologies
Elena Giusarma, Maria Archidiacono, Roland de Putter +2
Cosmological measurements are affected by the energy density of both active and sterile massive neutrinos. We extend here a recent analysis of current cosmological data to non mini…
Thinking Outside the Box: Effects of Modes Larger than the Survey on Matter Power Spectrum Covariance
Roland de Putter, Christian Wagner, Olga Mena +2
Considering the matter power spectrum covariance matrix, it has recently been found that there is a potentially dominant effect on mildly non-linear scales due to power in modes of…
Future constraints on the Hu-Sawicki modified gravity scenario
Matteo Martinelli, Alessandro Melchiorri, Olga Mena +2
We present current and future constraints on the Hu and Sawicki modified gravity scenario. This model can reproduce a late time accelerated universe and evade solar system constrai…
Biases on cosmological parameters by general relativity effects
L. Lopez-Honorez, O. Mena, S. Rigolin
General relativistic corrections to the galaxy power spectrum appearing at the horizon scale, if neglected, may induce biases on the measured values of the cosmological parameters.…
Future weak lensing constraints in a dark coupled universe
Francesco De Bernardis, Matteo Martinelli, Alessandro Melchiorri +2
Coupled cosmologies can predict values for the cosmological parameters at low redshifts which may differ substantially from the parameters values within non-interacting cosmologies…
Constraints on massive sterile neutrino species from current and future cosmological data
Elena Giusarma, Martina Corsi, Maria Archidiacono +4
Sterile massive neutrinos are a natural extension of the Standard Model of elementary particles. The energy density of the extra sterile massive states affects cosmological measure…