magritte, a modern software library for 3D radiative transfer: I. Non-LTE atomic and molecular line modelling
magritte, a modern software library for 3D radiative transfer: I. Non-LTE atomic and molecular line modelling
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Magritte,一个用于 3D 辐射传输的现代软件库:I. 非 LTE 原子和分子线建模
DOI:
10.1093/mnras/stz3557
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发表时间:
2020
影响因子:
4.8
通讯作者:
De Ceuster F
中科院分区:
文献类型:
--
作者:
De Ceuster F
Radiative transfer is a key component in almost all astrophysical and cosmological simulations. We presentmagritte: a modern open-source software library for 3D radiative transfer. It uses a deterministic ray-tracer and formal solver, i.e. it computes the radiation field by tracing rays through the model and solving the radiative transfer equation in its second-order form along a fixed set of rays originating from each point.magrittecan handle structured and unstructured input meshes, as well as smoothed-particle hydrodynamics (SPH) particle data. In this first paper, we describe the numerical implementation, semi-analytic tests and cross-code benchmarks for the non-LTE line radiative transfer module ofmagritte. This module uses the radiative transfer solver to self-consistently determine the populations of the quantized energy levels of atoms and molecules using an accelerated Lambda iteration (ALI) scheme. We comparemagrittewith the established radiative transfer solversratran(1D) andlime(3D) on the van Zadelhoff benchmark and present a first application to a simple Keplerian disc model. Comparing withlime, we conclude thatmagritteproduces more accurate and more precise results, especially at high optical depth, and that it is faster.
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影响因子:
64.8
作者:
Maercker;Mohamed;Vlemmings;Ramstedt;Groenewegen;Humphreys;Kerschbaum;Lindqvist;Olofsson;Paladini;Wittkowski;de Gregorio-Monsalvo
通讯作者:
de Gregorio-Monsalvo
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
D. Mihalas;R. Athay
通讯作者:
R. Athay
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
C. Cannon
通讯作者:
C. Cannon
DOI:
10.1016/j.ascom.2018.02.005
发表时间:
2018-02
期刊:
Astron. Comput.
影响因子:
--
作者:
B. Vandenbroucke;Kim Wood
通讯作者:
B. Vandenbroucke;Kim Wood
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
G. Scharmer;M. Carlsson
通讯作者:
M. Carlsson