Skip to main content
event
GAPP: GRMHD Simulations of Neutrino-Driven Winds From Proto Neutron Stars
Add to Calendar 2022-12-13T18:30:00 2022-12-13T19:30:00 UTC GAPP: GRMHD Simulations of Neutrino-Driven Winds From Proto Neutron Stars 339 Davey and Zoom: https://psu.zoom.us/j/92977329932
Start DateTue, Dec 13, 2022
1:30 PM
to
End DateTue, Dec 13, 2022
2:30 PM
Presented By
Dhruv Desai, Columbia University
Event Series: GAPP Seminar

Formed in the aftermath of a core-collapse supernova or neutron star merger, hot proto-neutron stars (PNSs) launch neutrino-driven winds within milliseconds, with the winds themselves lasting for tens of seconds. The PNS wind has long been considered a potential site for the nucleosynthesis of heavy elements (Z>60) via the rapid neutron capture process (r-process). Previous work has found that such winds are not favorable for r-process element production. I will present results of general relativistic magnetohydrodynamic simulations of the PNS wind with weak interactions, advanced microphysics and neutrino absorption. I will discuss how physical mechanisms of rapid rotation and strong magnetic fields of a PNS may independently affect wind dynamics and how these effects may change r- process viability.