Fast and versatile diagnostic radiative transfer of 3-D models of the ISM

ISM 3D 模型的快速、多功能诊断辐射传输

• 批准号: 203090784
• 负责人: Professor Dr. Cornelis Petrus Dullemond
• 金额: --
• 依托单位: Institut für Theoretische Astrophysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/203090784?language=en
• 关键词: Fast; versatile; diagnostic; radiative; transfer

The key link between theoretical/numerical models of the interstellar medium (ISM) and observations is radiative transfer. The radiation we observe with Earth-bound and space-based telescopes is usually difficult to interpret without it. And numerical models of the ISM cannot be properly compared to observations without radiative transfer. In recent years fully 3-D numerical (radiation-)(chemo-)(magneto-)hydrodynamic (RCMHD) models of the ISM have become mainstream. What is needed now is a versatile, powerful, yet publicly available radiative transfer package that can be used to analyze fully 3-D Adaptive Mesh Refinement RCMHD models of the ISM. I have built a beta-version of such a code: RADMC-3D. It can perform dust continuum and molecular/atomic line transfer, has full 3-D AMR capabilities, is easy to use and yet is very versatile. It has an extensive manual and I have made it publicly available from the start. What is needed now is the final developing stage: (1) Much more extensive testing, (2) implementation of some more physics such as quantum-heated grains and full non-LTE line transfer and (3) a mode for handling domain-decomposed very large models on distributed memory machines.

星际介质的理论/数值模型（ISM）和观测之间的关键环节是辐射传输。我们用地球和太空望远镜观测到的辐射通常很难解释，而ISM的数值模型也不能与没有辐射传输的观测结果进行适当的比较。近年来，ISM的全三维数值（辐射）（化学）（磁）流体动力学（RCMHD）模型已成为主流。现在需要的是一个通用的，强大的，但公开可用的辐射传输包，可用于分析完全三维自适应网格细化RCMHD模型的ISM。我已经建立了这样一个代码的beta版本：RADMC-3D。它可以执行尘埃连续谱和分子/原子谱线转移，具有完整的3-D AMR功能，易于使用，但用途非常广泛。它有一个广泛的手册，我从一开始就公开了它。现在需要的是最后的开发阶段：（1）更广泛的测试，（2）实现更多的物理，如量子加热颗粒和完全非LTE线传输，以及（3）在分布式内存机器上处理域分解的超大型模型的模式。