Implications of shock wave in phase transition in neutron stars
Date & Time :
Online Zoom Talk
The hydrodynamics of shock waves has found numerous applications in the field of fluid dynamics, astrophysics,high-energy physics, and cosmology. A shock wave is a wave where the disturbance in the medium propagatesfaster than the local speed of sound. On either side of the interference, the thermodynamic variables varydiscontinuously. It occurs when there is a rapid compression or expansion of the system. The mass, momentum,and energy conservation laws across the surface lead to the Rankine–Hugoniot (RH) and Taub equation connecting the properties of the fluid on either side of the discontinuity. In the talkIwilldiscusstheimplication of sock wave inphase transition in neutron starsand magnetars. At the center of the neutron star, where density is very high, the transitionfrom nuclear matter to quark matter can happen. First, the kinematic approach has been employed for studyingphase transition in neutron stars and magnetars. A new maximum mass limit for the hybrid star (a star with aquark core surrounded by nuclear matter) formed after the shock- induced phase transition in a neutron star hasbeen found.Wewill also be discussingthe dynamic phase transitionprocess asatwo-step process: first, the nuclear matter gets deconfined (strong interaction) into up and down quarks (2- flavormatter), and then further decays into strange quarks (weak decay), forming 3-favour matter (up, down, andstrange). We found that gravitational wave amplitude due to the phase transition is well within the presentdetector’s capability; however, the frequency is on the higher side.We also have examined other multiple signals from the phasetransition, namely, the radio and neutrino emissions. We will also discuss the crucial findings of the work and theirimportance in the present scenario in the future.