Abstract Details

Name: TUHIN MALIK
Affiliation: BITS-Pilani, Department of Physics, Hyderabad Campus, Hyderabad - 500078, India
Conference ID: ASI2021_248
Title : New equation of state involving Bose-Einstein condensate of antikaon for supernova and neutron star merger simulations
Authors and Co-Authors : Tuhin Malik (Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad - 500078, India), Sarmistha Banik (Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad - 500078, India), Debades Bandyopadhyay (Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Kolkata-700064, India)
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : We compute a new equation of state table including Bose-Einstein condensate of $K^{-}$ mesons for core-collapse supernova and neutron star merger simulations. Nuclei and interacting nucleons in the non-uniform matter is described in an extended version of the nuclear statistical equilibrium model including excluded volume effects whereas the uniform matter at higher densities is treated in the relativistic hadron field theory with density-dependent couplings. The equation of state table is generated for a wide range of density ($10^{-12}$ to $\sim 1$ fm$^{-3}$), positive charge fraction (0.01 to 0.60) and temperature (0.1 to 158.48 MeV). The impact of antikaon condensate is investigated on different thermodynamic quantities for example free energy per baryon, entropy per baryon, pressure as well as compositions of matter. Furthermore, critical temperatures of antikaon condensation and the phase diagram of matter are also studied in this article.