Constraints on neutrino masses from Planck and Galaxy Clustering data
  We present here bounds on neutrino masses from the combination of recent
Planck Cosmic Microwave Background measurements and galaxy clustering
information from the Baryon Oscillation Spectroscopic Survey (BOSS), part of
the Sloan Digital Sky Survey-III. We use the full shape of either the
photometric angular clustering (Data Release 8) or the 3D spectroscopic
clustering (Data Release 9) power spectrum in different cosmological scenarios.
In the Lambda$CDM scenario, spectroscopic galaxy clustering measurements
improve significantly the existing neutrino mass bounds from Planck data. We
find sum m_nu< 0.39 eV at 95% confidence level for the combination of the 3D
power spectrum with Planck CMB data (with lensing included) and Wilkinson
Microwave Anisoptropy Probe 9-year polarization measurements. Therefore, robust
neutrino mass constraints can be obtained without the addition of the prior on
the Hubble constant from HST.
  In extended cosmological scenarios with a dark energy fluid or with non flat
geometries, galaxy clustering measurements are essential to pin down the
neutrino mass bounds, providing in the majority of cases better results than
those obtained from the associated measurement of the Baryon Acoustic
Oscillation scale only. In the presence of a freely varying (constant) dark
energy equation of state, we find sum m_nu<0.49 eV at 95% confidence level for
the combination of the 3D power spectrum with Planck CMB data (with lensing
included) and Wilkinson Microwave Anisoptropy Probe 9-year polarization
measurements. This same data combination in non flat geometries provides the
neutrino mass bound sum m_nu<0.35 eV at 95% confidence level.
