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An open-source, massively parallel code for non-LTE synthesis and inversion of spectral lines and Zeeman-induced Stokes profiles
Stockholm University, Faculty of Science, Department of Astronomy.
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Number of Authors: 5
2015 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 577Article in journal (Refereed) Published
Abstract [en]

With the advent of a new generation of solar telescopes and instrumentation, interpreting chromospheric observations (in particular, spectropolarimetry) requires new, suitable diagnostic tools. This paper describes a new code, NICOLE, that has been designed for Stokes non-LTE radiative transfer, for synthesis and inversion of spectral lines and Zeeman-induced polarization profiles, spanning a wide range of atmospheric heights from the photosphere to the chromosphere. The code features a number of unique features and capabilities and has been built from scratch with a powerful parallelization scheme that makes it suitable for application on massive datasets using large supercomputers. The source code is written entirely in Fortran 90/2003 and complies strictly with the ANSI standards to ensure maximum compatibility and portability. It is being publicly released, with the idea of facilitating future branching by other groups to augment its capabilities.

Place, publisher, year, edition, pages
2015. Vol. 577
Keyword [en]
radiative transfer, Sun: chromosphere, Sun: photosphere, Sun: magnetic fields, polarization, Sun: abundances
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-117782DOI: 10.1051/0004-6361/201424860ISI: 000353579600007OAI: oai:DiVA.org:su-117782DiVA: diva2:816200
Available from: 2015-06-02 Created: 2015-06-01 Last updated: 2017-12-04Bibliographically approved

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de la Cruz Rodriguez, Jaime
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