532 citations · 11.7k across the 196 of their papers we have counts for
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Neutrino physics from Cosmology
Steen Hannestad
In recent years precision cosmology has become an increasingly powerful probe of particle physics. Perhaps the prime example of this is the very stringent cosmological upper bound…
Updated constraints on non-standard neutrino interactions from Planck
Maria Archidiacono, Steen Hannestad
We provide updated bounds on non-standard neutrino interactions based on data from the Planck satellite as well as auxiliary cosmological measurements. Two types of models are stud…
How secret interactions can reconcile sterile neutrinos with cosmology
Steen Hannestad, Rasmus Sloth Hansen, Thomas Tram
Short baseline neutrino oscillation experiments have shown hints of the existence of additional sterile neutrinos in the eV mass range. However, such neutrinos seem incompatible wi…
Cosmic dark radiation and neutrinos
Maria Archidiacono, Elena Giusarma, Steen Hannestad +1
New measurements of the cosmic microwave background (CMB) by the Planck mission have greatly increased our knowledge about the Universe. Dark radiation, a weakly interacting compon…
Axion hot dark matter bounds after Planck
Maria Archidiacono, Steen Hannestad, Alessandro Mirizzi +2
We use cosmological observations in the post-Planck era to derive limits on thermally produced cosmological axions. In the early universe such axions contribute to the radiation de…
Dark energy properties from large future galaxy surveys
Tobias Basse, Ole Eggers Bjaelde, Jan Hamann +2
We perform a detailed forecast on how well a {\sc Euclid}-like survey will be able to constrain dark energy and neutrino parameters from a combination of its cosmic shear power spe…