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The IllustrisTNG simulations: public data release
Computational Astrophysics and Cosmology Pub Date : 2019-05-14 , DOI: 10.1186/s40668-019-0028-x
Dylan Nelson , Volker Springel , Annalisa Pillepich , Vicente Rodriguez-Gomez , Paul Torrey , Shy Genel , Mark Vogelsberger , Ruediger Pakmor , Federico Marinacci , Rainer Weinberger , Luke Kelley , Mark Lovell , Benedikt Diemer , Lars Hernquist

We present the full public release of all data from the TNG100 and TNG300 simulations of the IllustrisTNG project. IllustrisTNG is a suite of large volume, cosmological, gravo-magnetohydrodynamical simulations run with the moving-mesh code Arepo. TNG includes a comprehensive model for galaxy formation physics, and each TNG simulation self-consistently solves for the coupled evolution of dark matter, cosmic gas, luminous stars, and supermassive black holes from early time to the present day, $z=0$ . Each of the flagship runs—TNG50, TNG100, and TNG300—are accompanied by halo/subhalo catalogs, merger trees, lower-resolution and dark-matter only counterparts, all available with 100 snapshots. We discuss scientific and numerical cautions and caveats relevant when using TNG. The data volume now directly accessible online is ∼750 TB, including 1200 full volume snapshots and ∼80,000 high time-resolution subbox snapshots. This will increase to ∼1.1 PB with the future release of TNG50. Data access and analysis examples are available in IDL, Python, and Matlab. We describe improvements and new functionality in the web-based API, including on-demand visualization and analysis of galaxies and halos, exploratory plotting of scaling relations and other relationships between galactic and halo properties, and a new JupyterLab interface. This provides an online, browser-based, near-native data analysis platform enabling user computation with local access to TNG data, alleviating the need to download large datasets.

中文翻译:

IllustrisTNG模拟:公开数据发布

我们展示了IllustrisTNG项目的TNG100和TNG300模拟的所有数据的完整公开发布。IllustrisTNG是一组使用运动网格代码Arepo运行的大体积宇宙动力学磁流体动力学仿真。TNG包括一个用于星系形成物理学的综合模型,并且每个TNG模拟都可以自洽地解决从早期到今天的暗物质,宇宙气体,发光恒星和超大质量黑洞的耦合演化,$ z = 0 $。每个旗舰级运行-TNG50,TNG100和TNG300-都带有光晕/半光晕目录,合并树,分辨率较低和仅暗物质的副本,均提供100张快照。我们讨论使用TNG时相关的科学和数字注意事项和注意事项。现在可以直接在线访问的数据量约为750 TB,包括1200个全卷快照和约80,000个高分辨率的子盒快照。随着TNG50的未来版本,这个数字将增加到约1.1 PB。数据访问和分析示例在IDL,Python和Matlab中可用。我们描述了基于Web的API中的改进和新功能,包括按需可视化和分析星系和光晕,探索比例关系以及银河和光晕属性之间其他关系的探索性绘图,以及新的JupyterLab接口。这提供了一个在线的,基于浏览器的,近乎本地的数据分析平台,使用户能够通过本地访问TNG数据进行计算,从而减少了下载大型数据集的需求。数据访问和分析示例在IDL,Python和Matlab中可用。我们描述了基于Web的API中的改进和新功能,包括按需可视化和分析星系和光晕,探索比例关系以及银河和光晕属性之间其他关系的探索性绘图,以及新的JupyterLab接口。这提供了一个在线的,基于浏览器的,近乎本地的数据分析平台,使用户能够通过本地访问TNG数据进行计算,从而减少了下载大型数据集的需求。数据访问和分析示例在IDL,Python和Matlab中可用。我们描述了基于Web的API中的改进和新功能,包括按需可视化和分析星系和光晕,探索比例关系以及银河和光晕属性之间其他关系的探索性绘图,以及新的JupyterLab接口。这提供了一个在线的,基于浏览器的,近乎本地的数据分析平台,使用户能够通过本地访问TNG数据进行计算,从而减少了下载大型数据集的需求。
更新日期:2019-05-14
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