Cometary outbursts – a search for a cause of the comet 17P/Holmes outburst
Cometary outbursts – a search for a cause of the comet 17P/Holmes outburst
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彗星爆发——寻找 17P/Holmes 彗星爆发的原因
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Z. Sacharczuk
中科院分区：
文献类型：
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作者：
P. Gronkowski;Z. Sacharczuk
周期彗星17 P/霍姆斯在2007年10月24日经历了一次非常大的亮度爆发。本文回顾了该事件的可能原因。考虑的重点是四个潜在的机制如下：（a）氰化氢HCN的聚合;（B）无定形水冰的结晶;（c）热应力和（d）应力所造成的冰封CO。彗星爆发的主要特征已被计算和讨论所考虑的机制引起的释放能量和亮度的跳跃值。所得结果与17 P/Holmes彗星爆发时的观测结果一致。本文的主要结论如下。根据我们目前对彗星物理和化学结构的了解，关于与CO包裹体有关的应力的假设似乎是17 P/Holmes彗星爆发的最可能原因。
Periodic comet 17P/Holmes underwent a very large outburst of brightness on 2007 October 24. In this paper, the probable causes of this event have been reviewed. Consideration focuses on the four potential mechanisms as follows: (a) the polymerization of hydrogen cyanide HCN; (b) the crystallization of amorphous water ice; (c) thermal stresses and (d) stresses created by icebound CO. The main characteristics of cometary outbursts have been calculated and discussed as the values of released energy and jumps of brightness caused by the considered mechanisms. The obtained results are consistent with the ones observed during the outburst of comet 17P/Holmes. The main conclusion of this paper is as follows. The hypothesis concerning the stresses related to CO inclusions appears to be the most probable cause of the comet 17P/Holmes outburst according to our present knowledge about the physical and chemical structure of comets.