  The recent observation of the object HESS J1731-347 suggests the existence of
a very light and very compact neutron star being a challenge for commonly used
equation of state for dense matter. In this work we present a relativistic mean
field model enriched with meson crossing terms among isovector and isoscalar
mesons. Such interactions particularly dominate the behavior of the symmetry
energy and accounts for small size of compact star radius. The proposed model
fulfill the recent constraints concerning the symmetry energy slope and
state-of-the-art compact stars constraints derived from the NICER measurements
of PSR J0030+0451 and PSR J0740+6620 pulsars as well as from the GW170817 event
and its associated electromagnetic counterparts AT2017gfo/GRB170817A.
