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SUMMARY:Propagating fluctuations in 2-dimensions: a new numerical model fo
 r stochastic accretion disc simulations - Samuel Turner
DTSTART:20221102T131500Z
DTEND:20221102T140500Z
UID:TALK192281@talks.cam.ac.uk
CONTACT:107642
DESCRIPTION:Accretion occurs across a large range of scales and physical r
 egimes. Despite this diversity in the physics\, the observed properties sh
 ow remarkably similarity. The theory of propagating fluctuations\, first p
 roposed by Lyubarskii (1997)\, has long been used to explain these phenome
 na. In this talk I will present the most detailed stochastic alpha-disc si
 mulations based on this theory to date\, including for the first time a 2-
 dimensional analogue of the 1-dimensional theory. I will show how this 2-d
 imensional work differs from the previous literature and show how the disc
  thickness and the timescale on which stochastic driving occurs are of fun
 damental important to what we observe. Finally\, I will consider how this 
 new stochastic model can be applied more widely within the field of accret
 ion discs.
LOCATION:The Hoyle Lecture Theatre + Zoom 
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