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NICIL : a stand alone library to self-consistently calculate non-ideal magnetohydrodynamic coefficients in molecular cloud cores

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Wurster_2016_NICIL_PASA_e041.pdf (1.467Mb)
Date
2016
Author
Wurster, J.
Keywords
(Magnetohydrodynamics) MHD
Methods: numerical
QA76 Computer software
QB Astronomy
QC Physics
T-DAS
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Abstract
In this paper, we introduce Nicil: Non-Ideal magnetohydrodynamics Coefficients and Ionisation Library. Nicil is a stand-alone Fortran90 module that calculates the ionisation values and the coefficients of the non-ideal magnetohydrodynamics terms of Ohmic resistivity, the Hall effect, and ambipolar diffusion. The module is fully parameterised such that the user can decide which processes to include and decide upon the values of the free parameters, making this a versatile and customisable code. The module includes both cosmic ray and thermal ionisation; the former includes two ion species and three species of dust grains (positively charged, negatively charged, and neutral), and the latter includes five elements which can be doubly ionised. We demonstrate tests of the module, and then describe how to implement it into an existing numerical code.
Citation
Wurster , J 2016 , ' NICIL : a stand alone library to self-consistently calculate non-ideal magnetohydrodynamic coefficients in molecular cloud cores ' , Publications of the Astronomical Society of Australia , vol. 33 , e041 , pp. 1-13 . https://doi.org/10.1017/pasa.2016.34
Publication
Publications of the Astronomical Society of Australia
Status
Peer reviewed
DOI
https://doi.org/10.1017/pasa.2016.34
ISSN
1323-3580
Type
Journal article
Rights
Copyright © 2016 Astronomical Society of Australia; published by Cambridge University Press. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1017/pasa.2016.34
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  • University of St Andrews Research
URL
https://arxiv.org/abs/1608.00983
URI
http://hdl.handle.net/10023/18740

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