Updated observational constraints on quintessence dark energy models
  The recent GW170817 measurement favors the simplest dark energy models, such
as a single scalar field. Quintessence models can be classified in two classes,
freezing and thawing, depending on whether the equation of state decreases
towards $-1$ or departs from it. In this paper we put observational constraints
on the parameters governing the equations of state of tracking freezing,
scaling freezing and thawing models using updated data, from the Planck 2015
release, joint light-curve analysis and baryonic acoustic oscillations. Because
of the current tensions on the value of the Hubble parameter $H_0$, unlike
previous authors, we let this parameter vary, which modifies significantly the
results. Finally, we also derive constraints on neutrino masses in each of
these scenarios.
