Mass–radius relationship (panel a) and mass–central baryon density relationship (panel b) for the two nuclear interaction models considered in this work. The hatched region in panel a represents the mass–radius constraints obtained by Steiner et al. (2010, 2013b). The strip with boundaries marked with orange lines stands for the measured mass M = 2.01 ± 0.04 M_⊙ (Antoniadis et al. 2013) of the neutron stars in PSR J0348+0432.