The Signature of a Windy Radio Supernova Progenitor in a Binary System. The curious case of SN1979C in which ripples observed in radio can be explained by the interaction of the wind of the supernova progenitor with a companion star in relatively wide orbit.
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Simulation of the wind of a 18MSun (ZAMS) star shortly before it explodes in a supernova, in orbit around a 15MSun companion star. The simulation is for the last 14000 years before the supernova explosion. simulations are performed using AMUSE, with Fi as the hydro code and Huayno for integrating the planetary orbit.Mass per SPH particle is 10e-5MSun, orbital period is 2000yrs, circular. Binary plan is in the X-Y plane. datafiles containing particle data from the simulations.snapshot_000xxx_gas.amuse (35 in total)snapshot_000xxx_stars.amuse (35 in total) datafiles containinig observations of SN1979C:SN1979C_488GHz_fit.csv (fitted data) SN1979C_488GHz.csv (raw data) plotting routines:compare_lightcurve.pyplot_pd.py
本数据集针对一颗即将以超新星形式爆发的18倍太阳质量（MSun）零龄主序星（Zero-Age Main Sequence, ZAMS）展开风场模拟，该恒星环绕一颗15倍太阳质量（MSun）伴星运行。本次模拟覆盖超新星爆发前的最后14000年时段。模拟工作基于AMUSE软件包完成，其中流体力学计算采用Fi代码，行星轨道积分则借助Huayno程序实现。每颗光滑粒子流体动力学（Smoothed Particle Hydrodynamics, SPH）粒子的质量为10^-5倍太阳质量（MSun）；轨道周期为2000年，轨道呈圆形，双星系统的轨道平面位于X-Y平面内。模拟产出的粒子数据存储于以下数据文件中： - snapshot_000xxx_gas.amuse（共35个文件） - snapshot_000xxx_stars.amuse（共35个文件） 此外数据集还包含SN 1979C的观测数据文件： - SN1979C_488GHz_fit.csv（拟合后数据） - SN1979C_488GHz.csv（原始观测数据） 配套的绘图脚本为compare_lightcurve.pyplot_pd.py
