A new mass model for nuclear astrophysics: crossing 200 keV accuracy

By using a machine learning algorithms, we present an improved nuclear mass table with a root mean square deviation of less than $200$keV. The model is equipped with statistical error bars in order to compare with available experimental data. We use the resulting model to predict the composition of the outer crust of a neutron star. By means of simple Monte Carlo methods, we propagate the statistical uncertainties of the mass model to the equation of state of the system.