Public Data Release of the FIRE-2 Cosmological Zoom-in Simulations of Galaxy Formation-猫眼课题宝

DOI：

10.3847/1538-4365/acb99a

发表时间：

2022-02

期刊：

The Astrophysical Journal Supplement Series

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

A. Wetzel;C. Hayward;R. Sanderson;Xiangcheng Ma;D. Anglés-Alcázar;R. Feldmann;T. K. Chan;K. El-Badry;Coral Wheeler;S. Garrison-Kimmel;F. Nikakhtar;N. Panithanpaisal;Arpit Arora;Alex Gurvich;J. Samuel;Omid Sameie;V. Pandya;Zachary Hafen;C. Hummels;S. Loebman;M. Boylan-Kolchin;J. Bullock;C. Faucher-Giguère;D. Keres̆;E. Quataert;P. Hopkins

我们描述了一个公开的数据发布的FIRE-2宇宙放大模拟星系形成（可在http：//flathub.flatironinstitute.org/fire）的反馈在现实环境（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，同时实现恒星演化和反馈的直接模型，包括恒星风，核心坍缩和Ia型超新星，辐射压力，光电离和光电加热。我们从三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（MW）质量星系，5个SMC/LMC质量星系和4个较低质量星系，包括一个超暗星系;我们在z = 0-10范围内发布39个快照。第二个由四个大质量星系组成，在z = 1-10范围内有19个快照。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，气体和星星粒子的所有存储属性，包括恒星和气体的11种元素丰度，以及星星粒子的形成时间（年龄）。我们还发布了伴随的（子）晕目录，其中包括星系属性和成员星星粒子。对于z = 0的模拟，包括所有MW质量的星系，我们发布的形成坐标和“非原位”标志的所有星星粒子，指针跟踪粒子的快照，恒星流目录，和多极基扩展的晕质量分布。我们描述了公开可用的python包，用于阅读和分析这些模拟。

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 multiphase interstellar medium while implementing direct models for stellar evolution and feedback, including stellar winds, core-collapse and Type Ia supernovae, radiation pressure, photoionization, and photoelectric heating. We release complete snapshots from three suites of simulations. The first comprises 20 simulations that zoom in on 14 Milky Way (MW)–mass galaxies, five SMC/LMC-mass galaxies, and four lower-mass galaxies including one ultrafaint; we release 39 snapshots across z = 0–10. The second comprises four 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 MW-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.

Public Data Release of the FIRE-2 Cosmological Zoom-in Simulations of Galaxy Formation

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