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）的研究采用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瓦解过程。该模拟所用代码的开源地址为：https://github.com/danieljprice/phantom 本数据集包含： 1. 用于生成论文中每幅图表的脚本、中间数据产物及其他小型辅助文件 2. 论文中展示的四项主要计算所对应的筛选快照与原始数据 核心数据集包含用于生成论文图表的模拟参数文件与快照，以及用于生成论文科学成果与图表的模拟小型数据文件与后处理脚本。每一组模拟数据集包含以下内容： - `.setup`文件：由`phantomsetup`用于生成恒星初始条件的参数文件 - `.in`文件：由Phantom用于执行计算的参数文件 - `tde_00000`、`tde_00100`、`tde_00200`等：存储原始数据的二进制代码快照文件，包含粒子位置、速度、热能等信息，可通过免费开源代码SPLASH（Price et al. 2007）或Sarracen读取、可视化与转换，二者的开源地址分别为https://github.com/danieljprice/splash 与https://github.com/ttricco/sarracen。本论文的图表即通过SPLASH生成。 此类数据文件的格式与读取方法可参考：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），存储总角动量、总动量、总能量等全局物理量随时间的演化数据。每个编号对应一次代码重启（即集群队列中的作业重新提交）。 - `tde01.log`、`tde02.log`：模拟过程的输出日志文件，包含单位缩放、典型时间步长、代码性能、硬件信息等实用信息。 - `.defaults`、`.limits`、`.units`与`.filenames`：SPLASH用于生成特定图表的参数文件。例如，若要使用`lightcurve.defaults`、`lightcurve.units`、`lightcurve.limits`与`lightcurve.filenames`生成绘图，可执行命令`splash -p lightcurve`。 相关原始数据目录如下： - `beta1_hres`：绝热、β=1计算的原始数据 - `beta5_hres`：绝热、β=5计算的原始数据 - `beta1_isentropic`：非旋转黑洞的等熵、β=1计算的原始数据 - `beta1_isentropic_kerr_a99_i60`：采用最大自旋克尔黑洞、初始恒星轨道与黑洞自旋夹角为60度的等熵、β=1计算的原始数据 本论文中用于复刻每幅图表与后处理分析的操作流程，详见每个从`figureX.zip`解压得到的目录内的`README.md`文件。