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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28666
Title: The challenges of modelling microphysics: ambipolar diffusion, chemistry, and cosmic rays in MHD shocks
Authors: Grassi, T.
Padovani, Marco 
Ramsey, J. P.
GALLI, Daniele 
Vaytet, N.
Ercolano, B.
Haugbølle, T.
Issue Date: 2019
Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 
Number: 484
Issue: 1
First Page: 161
Abstract: From molecular clouds to protoplanetary discs, non-ideal magnetic effects are important in many astrophysical environments. Indeed, in star and disc formation processes, it has become clear that these effects are critical to the evolution of the system. The efficacy of non-ideal effects is, however, determined by the complex interplay between magnetic fields, ionizing radiation, cosmic rays, microphysics, and chemistry. In order to understand these key microphysical parameters, we present a one-dimensional non-ideal magnetohydrodynamics code and apply it to a model of a time-dependent, oblique, magnetic shock wave. By varying the microphysical ingredients of the model, we find that cosmic rays and dust play a major role, and that, despite the uncertainties, the inclusion of microphysics is essential to obtain a realistic outcome in magnetic astrophysical simulations.
URI: http://hdl.handle.net/20.500.12386/28666
URL: https://academic.oup.com/mnras/article/484/1/161/5274140
ISSN: 0035-8711
DOI: 10.1093/mnras/sty3519
Bibcode ADS: 2019MNRAS.484..161G
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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