Ibn型超新星和SN 2006 jc的星周相互作用
Circumstellar interaction in type Ibn supernovae and SN 2006jc
摘要：
我分析的光变曲线和连续的神秘的伊本超新星，包括SN 2006jc的特殊性质，并主张赞成早期强拱星相互作用。这种相互作用解释了SN 1999cq的高亮度和快速通量上升，而冲击喷出物中形成的冷致密壳层可以解释SN 2000er的平滑早期连续光谱和SN 2006jc的不寻常的蓝色连续光谱。尘埃在第50天左右凝结在冷而致密的壳层中。Monte Carlo模拟的He I 7065彗星线轮廓受尘埃掩星的影响支持的图片，其中的尘埃居住在破碎的冷致密壳，而He I线起源于拱星云冲击和破碎的前向冲击波。
英文摘要：
I analyse peculiar properties of light curve and continua of enigmatic Ibn supernovae, including SN 2006jc, and argue in favour of the early strong circumstellar interaction. This interaction explains the high luminosity and fast flux rise of SN 1999cq, while the cool dense shell formed in shocked ejecta can explain the smooth early continuum of SN 2000er and unusual blue continuum of SN 2006jc. The dust is shown to condense in the cool dense shell at about day 50. Monte Carlo modelling of the He I 7065 Åline profile affected by the dust occultation supports a picture, in which the dust resides in the fragmented cool dense shell, whereas He I lines originate from circumstellar clouds shocked and fragmented in the forward shock wave.
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