Testing 3+1 and 3+2 neutrino mass models with cosmology and short
  baseline experiments
  Recent results from short--baseline neutrino oscillation experiments and
Cosmic Microwave Background anisotropy measurements suggest the presence of
additional sterile neutrinos. In this paper we properly combine these data sets
to derive bounds on the sterile neutrino masses in the 3+1 and 3+2 frameworks,
finding a potentially good agreement between the two datasets. However, when
galaxy clustering is included in the analysis a tension between the oscillation
and cosmological data is clearly present.
