skip to main content

Title: ON THE CONVERGENCE OF MAGNETOROTATIONAL TURBULENCE IN STRATIFIED ISOTHERMAL SHEARING BOXES

We consider the problem of convergence in stratified isothermal shearing boxes with zero net magnetic flux. We present results with the highest resolution to date—up to 200 grid points per pressure scale height—that show no clear evidence of convergence. Rather, the Maxwell stresses continue to decrease with increasing resolution. We propose some possible scenarios to explain the lack of convergence based on multi-layer dynamo systems.
Authors:
;  [1] ;  [2] ;  [3]
  1. INAF, Osservatorio Astrofisico di Torino, Strada Osservatorio 20, I-10025 Pino Torinese (Italy)
  2. The Computation Institute, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637 (United States)
  3. Dipartimento di Fisica, Univesitá di Torino, via Pietro Giuria 1, I-10125 Torino (Italy)
Publication Date:
OSTI Identifier:
22365836
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 787; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCRETION DISKS; CONVERGENCE; LAYERS; MAGNETIC FLUX; MAGNETOHYDRODYNAMICS; RESOLUTION; SCALE HEIGHT; SHEAR; STRESSES; TURBULENCE