Speaker
Description
One of the most important subjects in nuclear physics is the study of the nature of astrophysical compact objects. A quite intriguing scenario when examining the composition of nuclear stellar matter in compact star cores is the presence of exotic constituents such as kaon condensates. In the present conference contribution, we focus our attention on the central compact object (CCO) in the HESS J1731-347 supernova remnant. The CCO’s mass and radius have been estimated equal to M = $0.77 ^{+0.20} _{-0.17}$ $M_{\odot}$ and R = $10.4^{+0.86} _{-0.78}$ km (at the 1$\sigma$ level), while its redshifted surface temperature has been calculated equal to $153 ^{+4} _{-2}$ keV at an age of 2-6 kyrs. We attempt to explain not only its mass and radius but also its redshifted surface temperature for the previous time frame via considering two different stellar configurations. The first one dictates a fully hadronic neutron star, while the second one predicts the presence of kaon condensate in the star’s core.