摘要
通过把从光球辐射出来的连续谱能量分成大量的光子包，然后用MonteCarlo方法跟踪这些光子包从光球向超新星包层外运动的过程，这一方法能很好地解决超新星的光谱拟合中的谱线覆盖问题，由于同时编制了用于构造超新星包层中的密度结构和丰度分布的程序，以及大量的用于比较观测和理论拟合的绘图和支持程序，使我们的MonteCarlo光谱拟合软件包能够很好地运用于超新星的早期光谱研究。本文给出了SN1993J在1993年4月13日的观测光谱的运行实例。
This paper describes how to apply the Monte Carlo method to model the early spectra of supernovae(SNe). By dividing the total energy radiated from the photosphere of SNe into a lot of photon packages and then tracing the movement of these packages, this method can solve the line overlapping problem of supernova spectrum simulations. Programs to construct density profiles and abundance structures of supernova envelopes and to compare model with observation are compiled, which makes the Monte Carlo-spectrum-synthesis software package well adapted to modeling the early spectra of SNe. We present an example of modeling the 1993 April 13 spectrum of SN 1993J.
基金
国家自然科学基金
