Analysis of SN 1987A polarimetry
Analysis of SN 1987A polarimetry
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DOI：
10.1086/170187
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发表时间：
1991-07
期刊：
影响因子：
--
通讯作者：
D. J. Jeffrey
中科院分区：
文献类型：
--
作者：
D. J. Jeffrey
介绍和讨论了用于分析SN 1987 A偏振测量数据的模型和偏振辐射传输技术。使用模型计算的示范结果。介绍了分析SN 1987A偏振测量数据所需的星际偏振校正。总结和解释的SN 1987 A的偏振依赖于这种校正的演变。本文对SN 1987A的一小部分旋光仪进行了分析。分析的重要结论是：SN 1987A的连续极化和线极化特征主要是由于电子散射的极化效应，SN 1987A可能存在激发不对称性。SN 1987 A的偏振数据解释为简单的形状不对称性，要求SN 1987 A的长宽差异为10%或更大。参考文献82篇。
Models and a polarized radiative transfer technique useful for analyzing the SN 1987A polarimetric data are introduced and discussed. Demonstration results calculated using the models are presented. An interstellar polarization correction needed for analyzing the SN 1987A polarimetric data is introduced. A summary and interpretation of the evolution of the SN 1987A polarization that relies on this correction is given. An analysis of a small selection of the SN 1987A polarimetry is reported. The important conclusions of this analysis are that the SN 1987A continuum polarization and line polarization features are mostly due to the polarizing effect of electron scattering and that there is probably an excitation asymmetry in SN 1987A. An interpretation of the SN 1987A polarimetric data in terms of simple shape asymmetry requires that SN 1987A have a length-width difference of order 10 percent or more. 82 refs.