Context: Recently, Doroshenko and collaborators reported a very low-mass compact star, Central Compact Object named XMMU J173203.3-344518 inside the supernova remnant HESS J1731-347. Its tiny mass is at odds with all calculations of minimum masses neutron stars generated by iron cores, therefore (and even if not compellingly) it has been suggested to be {\it strange star}. Besides mass, radius ...
