Data from: "Eddington envelopes: The fate of stars on parabolic orbits tidally disrupted by supermassive black holes" (Price et al. 2024)

The paper by Price et al. (2024; arXiv:2404.09381) simulates the tidal disruption of a one solar mass polytropic star by a million-solar-mass supermassive black hole, using the Phantom general relativistic smoothed particle hydrodynamics code (Price et al. 2018). The code used to perform the simulations is available at: https://github.com/danieljprice/phantom This dataset contains: Scripts, intermediate data products and other small files used to create each figure in the paper Selected snapshots and other raw data from the four main calculations shown in the paper The main datasets contain parameter files and snapshots from the simulations used to create figures in the paper.small data files from the simulations and post-processing scripts used to create the scientific results and figures shown in the paper. Each simulation dataset contains: .setup file: parameter file used by phantomsetup to create the initial conditions for the star itself.in file: parameter file used by phantom to perform the calculationtde_00000, tde_00100, tde_00200 etc: binary code snapshots containing raw data (particle positions, velocities, thermal energy, etc), these can be read/visualised/converted using the free and open source codes SPLASH (Price et al. 2007):https://github.com/danieljprice/splash or Sarracen: https://github.com/ttricco/sarracen SPLASH was used to create figures in the paper. The format and ways to read these data files are described in: https://phantomsph.readthedocs.io/en/latest/user-guide/dumpfile.html tde01.ev, tde02.ev etc: ascii files (see header) containing global quantities like total angular momentum, total momentum, total energy etc as a function of time. Each number corresponds to a restart of the code (i.e. resubmission of the job to the queue on the cluster). tde01.log, tde02.log: output log from the simulations themselves, this contains some useful information like the unit scalings, typical timestep and code performance, hardware information etc. .defaults, .limits, .units and .filenames: parameter files used by SPLASH to create particular figures. For example, to use the files lightcurve.defaults, lightcurve.units, lightcurve.limits and lightcurve.filenames one would plot using splash -p lightcurve The relevant raw data directories are: beta1_hres: raw data from the adiabatic, beta=1 calculation beta5_hres: raw data from the adiabatic, beta=5 calculation beta1_isentropic: raw data from the isentropic, beta=1 calculation with a non-spinning black hole beta1_isentropic_kerr_a99_i60: raw data from the isentropic, beta=1 calculation with a maximally-spinning black hole with the initial stellar orbit at an incliation of 60 degrees to the black hole spin The procedure to recreate each figure and post-processing analysis used in the paper is explained in the README.md placed in each directory unpacked from the figureX.zip filePrice等人（2024；arXiv:2404.09381）的研究论文利用Phantom广义相对论光滑粒子流体动力学代码（general relativistic smoothed particle hydrodynamics code）（Price et al. 2018），模拟了1倍太阳质量的多方恒星被100万倍太阳质量的超大质量黑洞的潮汐撕裂过程。该模拟所用代码的开源获取地址为：https://github.com/danieljprice/phantom 本数据集包含： 1. 用于生成论文中所有图表的脚本、中间数据产物及其他小型辅助文件 2. 论文中四项核心计算所对应的筛选快照与其他原始数据 主数据集包含用于生成论文图表的模拟参数文件与快照、支撑科研结果与图表生成的模拟小型数据文件及后处理脚本。每个模拟数据集包含以下内容： - `.setup`文件：由phantomsetup工具生成的恒星初始条件参数文件 - `.in`文件：Phantom代码执行数值计算所用的参数文件 - `tde_00000`、`tde_00100`、`tde_00200`等：存储原始数据的二进制代码快照，包含粒子位置、速度、热能等物理量，可通过免费开源代码SPLASH（Price et al. 2007）或Sarracen读取、可视化与格式转换，二者的开源地址分别为https://github.com/danieljprice/splash 与https://github.com/ttricco/sarracen。论文中的全部图表均通过SPLASH生成。 上述数据文件的格式与读取方法可参考官方文档：https://phantomsph.readthedocs.io/en/latest/user-guide/dumpfile.html - `tde01.ev`、`tde02.ev`等：ASCII格式文件（详见文件头注释），存储随时间演化的全局物理量，包括总角动量、总动量、总能量等。文件名编号对应代码重启次数，即集群任务队列中的任务重新提交次数。 - `tde01.log`、`tde02.log`：模拟运行的输出日志文件，包含单位标定、典型时间步长、代码运行性能、硬件配置信息等实用内容。 - `.defaults`、`.limits`、`.units`与`.filenames`：SPLASH代码用于生成特定图表的配置参数文件。例如，若需使用`lightcurve.defaults`、`lightcurve.units`、`lightcurve.limits`与`lightcurve.filenames`生成光变曲线相关图表，可执行命令splash -p lightcurve。 相关原始数据目录说明如下： - `beta1_hres`：绝热模型且β=1的数值计算对应的原始数据 - `beta5_hres`：绝热模型且β=5的数值计算对应的原始数据 - `beta1_isentropic`：非旋转黑洞下的等熵模型且β=1的数值计算对应的原始数据 - `beta1_isentropic_kerr_a99_i60`：最大自旋黑洞（自旋参数a=0.99）、初始恒星轨道与黑洞自旋夹角为60°的等熵模型且β=1的数值计算对应的原始数据 论文中每张图表的复现流程与所用后处理分析方法，均收录于从figureX.zip压缩包解压得到的各对应目录下的README.md文件中。