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Michael P Grehan

@michaelpgrehan.bsky.social
18 followers 14 following 0 posts

PhD candidate at the University of Toronto and member of the Plasma Astrophysics group at CITA. Neutron stars, plasma physics, and simulations.

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Reposted by Michael P Grehan
Dr. James Beattie @astromagnetism.bsky.social · 27/03/2025
🔥 Hot off the press 🔥 @michaelpgrehan.bsky.social, grad student in CITA’s plasma astro group (@bartripperda.bsky.social’s group) shows that relativistic reconnection is invariant to the underlying model: ideal, resistive MHD, MD, force free electrodynamics, doesn’t matter… arxiv.org/abs/2503.20013
arxiv.org
Comparison of magnetic diffusion and reconnection in ideal and resistive relativistic magnetohydrodynamics, ideal magnetodynamics and resistive force-free electrodynamics
High-energy astrophysical systems and compact objects are frequently modeled using ideal relativistic magnetohydrodynamic (MHD) or force-free electrodynamic (FFE) simulations, with the underlying assu...
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Reposted by Michael P Grehan
Dr. James Beattie @astromagnetism.bsky.social · 26/02/2025
My first poster since 2017… dynamos in merging neutron stars in NY this week 🤩🤩🤩
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Reposted by Michael P Grehan
Dr. James Beattie @astromagnetism.bsky.social · 04/12/2024
Blackboard talk, done 😇
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