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arXiv 2202.06969astro-ph.GAastro-ph.COastro-ph.SR
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FIRE-2宇宙学放大模拟星系形成的公开数据发布

Public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation

Andrew Wetzel, Christopher C. Hayward, Robyn E. Sanderson, Xiangcheng Ma, Daniel Angles-Alcazar, Robert Feldmann, T. K Chan, Kareem El-Badry, Coral Wheeler, She… 展开作者

Andrew Wetzel, Christopher C. Hayward, Robyn E. Sanderson, Xiangcheng Ma, Daniel Angles-Alcazar, Robert Feldmann, T. K Chan, Kareem El-Badry, Coral Wheeler, Shea Garrison-Kimmel, Farnik Nikakhtar, Nondh Panithanpaisal, Arpit Arora, Alexander B. Gurvich, Jenna Samuel, Omid Sameie, Viraj Pandya, Zachary Hafen, Cameron Hummels, Sarah Loebman, Michael Boylan-Kolchin, James S. Bullock, Claude-Andre Faucher-Giguere, Dusan Keres, Eliot Quataert, Philip F. Hopkins

摘要:

我们描述了一个公开的数据发布的FIRE-2宇宙放大模拟的星系形成,可在http://flathub.flatironinstitute.org/fire,从反馈在现实环境(FIRE)项目。FIRE-2模拟实现了秒差距尺度的分辨率,以明确地模拟多相星际介质,同时实现了恒星演化和反馈的直接模型,包括恒星风,核心坍缩和Ia超新星,辐射压力,光电离和光电加热。我们从3套模拟中发布完整的快照。第一个包括20个模拟,放大14个银河系质量星系,5个SMC/LMC质量星系和4个较低质量星系,包括1个超暗星系;我们在z = 0 - 10范围内发布了39个快照。第二个由4个大质量星系组成,有19个z = 1 - 10的快照。最后,一个高红移套件包括22个模拟,其中11个快照跨越z = 5 - 10。每个模拟还包括几十个分辨率较低的质量(卫星)星系在其放大区域。快照包括所有暗物质、气体和恒星粒子的所有存储属性,包括恒星和气体的11种元素丰度,以及恒星粒子的形成时间(年龄)。我们还发布伴随的(子)晕目录,其中包括星系属性和成员星粒子。对于z = 0的模拟,包括所有银河系质量的星系,我们发布了所有恒星粒子的形成坐标和“非原位”标志,指针跟踪粒子的快照,恒星流目录和多极基扩展晕质量分布。我们描述了公开可用的python包,用于阅读和分析这些模拟。

英文摘要:

We describe a public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation, available at http://flathub.flatironinstitute.org/fire, from the Feedback In Realistic Environments (FIRE) project. FIRE-2 simulations achieve parsec-scale resolution to explicitly model the multi-phase interstellar medium while implementing direct models for stellar evolution and feedback, including stellar winds, core-collapse and Ia supernovae, radiation pressure, photoionization, and photoelectric heating. We release complete snapshots from 3 suites of simulations. The first comprises 20 simulations that zoom in on 14 Milky Way-mass galaxies, 5 SMC/LMC-mass galaxies, and 4 lower-mass galaxies including 1 ultra-faint; we release 39 snapshots across z = 0 - 10. The second comprises 4 massive galaxies, with 19 snapshots across z = 1 - 10. Finally, a high-redshift suite comprises 22 simulations, with 11 snapshots across z = 5 - 10. Each simulation also includes dozens of resolved lower-mass (satellite) galaxies in its zoom-in region. Snapshots include all stored properties for all dark matter, gas, and star particles, including 11 elemental abundances for stars and gas, and formation times (ages) of star particles. We also release accompanying (sub)halo catalogs, which include galaxy properties and member star particles. For the simulations to z = 0, including all Milky Way-mass galaxies, we release the formation coordinates and an "ex-situ" flag for all star particles, pointers to track particles across snapshots, catalogs of stellar streams, and multipole basis expansions for the halo mass distributions. We describe publicly available python packages for reading and analyzing these simulations.

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