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SUMMARY:Giuseppe Rivieccio:Equation of state and magnetic field effects in
  binary neutron star mergers
DTSTART:20261119T121500Z
DTEND:20261119T130000Z
DTSTAMP:20261112T180400Z
UID:indico-event-9949@indico.fysik.su.se
DESCRIPTION:Determining the equation of state (EoS) of dense nuclear matte
 r is a long-standing open problem\, and binary neutron star (BNS) mergers 
 offer a unique laboratory to probe it. In this talk I will first discuss h
 ow phase transitions and\, more generally\, non-convex thermodynamics can 
 affect BNS mergers and numerical simulations of them. We introduce a para
 metrized phase transition (PT) that lets us control its stiffness and conv
 exity\, so that first-order and crossover transitions can be studied withi
 n a single framework. By comparing the gravitational-wave signals from sim
 ulations with different PTs\, we examine how each type affects the quasi-u
 niversal relation between the post-merger peak frequency and the tidal def
 ormability. Finally\, I will show preliminary results on how the nucleosyn
 thesis yields of BNS ejecta change with the geometry of the magnetic field
 .\n\nhttps://indico.fysik.su.se/event/9949/
URL:https://indico.fysik.su.se/event/9949/
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