Meteor showers associated with the near-Earth asteroid (2101) Adonis
Meteor showers associated with the near-Earth asteroid (2101) Adonis
复制标题
与近地小行星 (2101) Adonis 相关的流星雨
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
P. Babadzhanov
中科院分区：
文献类型：
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作者：
P. Babadzhanov
用Halphen-Goryachev方法研究了近地小行星（2101）Adonis在6颗行星（水星-土星）引力作用下的轨道演化。确定了与这颗小行星有关的四种可能的流星雨的理论地心坐标和速度。利用已发表的数据，理论上预测的阵雨与观测到的一致，即夜间的σ-摩羯座流星雨和α-人马座流星雨，以及白天的α-摩羯座流星雨和摩羯座-人马座流星雨。与阿多尼斯有关的流星雨的存在提供了证据支持这颗小行星可能具有彗星性质的猜想。小的50米近地小行星1995 CS可能是一个大的阿多尼斯碎片，属于阿多尼斯流星体流的一部分，它产生了白天的摩羯座流星雨。
The orbital evolution of the near-Earth asteroid (2101) Adonis under gravitational action of six planet (Mercury to Saturn) is investigated by the Halphen-Goryachev method. The theoretical geocentric coordinates and velocities of four possible meteor showers associated with this asteroid are determined. Using published data, the theoretically predicted showers are identified with the observed ones, namely, night-time σ-Capricornids and Χ-Sagittariids, and day-time Χ-Capricornids and Capricornids-Sagittariids. The existence of meteor showers associated with Adonis provides evidence supporting the conjecture that this asteroid may be of a cometary nature. The small 50-m near-Earth asteroid 1995 CS probably represents a large Adonis fragment and belongs to a part of the Adonis meteoroid stream, which produces the day-time Χ-Capricornids meteor shower.