Astroplasmas Seminar
Astroplasmas Seminar
Fridays at 12:30pm, Dome Room, Peyton Hall**
**Please note that the seminar is currently being held in Room 1-N-5, Green Hall, instead of Peyton Hall
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Next seminar
Friday, September 18, 12:30 pm, 1-N-5 at Green Hall
Title: Numerical Relativity for Subsolar-Mass mergers in Collapsar Disks and Collisionless Self-Gravitating Systems
Friday, September 18, 12:30 pm, 1-N-5 at Green Hall
Title: Numerical Relativity for Subsolar-Mass mergers in Collapsar Disks and Collisionless Self-Gravitating Systems
Speaker: Jiaxi Wu (Caltech)
Abstract: I will discuss my two recent works. First, I will present our study of hierarchical subsolar-mass compact-object mergers in collapsar disks, focusing on the orbital eccentricity that can arise in this formation channel and its potential imprint on gravitational-wave signals. I will then introduce NRPIC, a numerical-relativity particle-in-cell framework that I am developing to evolve collisionless, self-gravitating particle systems together with the dynamical spacetime. I will briefly describe the method and show several applications involving relativistic gravitational instabilities and collapse. These examples illustrate how particle-based numerical relativity can complement fluid approaches for studying strongly gravitating collisionless systems.
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