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SUMMARY:Studying the magnetic evolution of black hole accretion disks - Pa
 yton Rodman (University of Cambridge)
DTSTART:20211103T131500Z
DTEND:20211103T134500Z
UID:TALK165430@talks.cam.ac.uk
CONTACT:Hannah Uebler
DESCRIPTION:Models and simulations of jet production near black holes all 
 point to large-scale poloidal magnetic fields playing a critical role. How
 ever\, despite this importance\, there is still much we don’t know about
  the generation\, amplification\, and evolution of such fields in the accr
 etion disk. Due to the inherent difficulty in inferring magnetic field str
 ucture through observations of accretion disks\, we must instead turn to m
 agnetohydrodynamic (MHD) simulations to increase our understanding\, and s
 o must also contend with the numerical challenges they introduce.\n\nIn th
 is talk\, I will give an overview of my project on this subject and presen
 t the first preliminary results from a fully-3D MHD simulation of a thick 
 disk (0.25h/r) with a purely toroidal initial field. I will also briefly d
 iscuss some of the major challenges in analysing such simulated data and p
 otential avenues of analysis. \n
LOCATION:Hybrid Hoyle (sign-up needed) + Zoom
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