在黑尔-波普彗星中观察一氧化碳的观测
D Jewitt1, M Senay, H Matthews
1Institute for Astronomy, Honolulu, HI 96822, USA.
Science (New York, N.Y.)
|February 23, 1996
概括
海尔-波普彗星表现出早期的尘埃昏迷活动,由一氧化碳 (CO) 驱动,即使距离太阳很远. 这表明,二氧化碳是彗星在1997年近日期前的初始行为的关键.
科学领域:
- 天文学和天体物理学
- 彗星科学 彗星科学
背景情况:
- 海尔波普彗星 (C/1995 01) 显示出一个突出的尘埃昏迷,离太阳异常远 (6 AU).
- 这颗彗星在1997年4月接近周日点 (0.92AU),预计将成为一个突出的肉眼可见的物体.
研究的目的:
- 调查哈雷波普彗星早期彗星活动的原因.
- 为了确定导致观察到的尘埃昏迷的挥发性物种.
主要方法:
- 用毫米波观测来研究彗星的组成.
- 进行了光谱分析以检测分子物种.
主要成果:
- 一氧化碳 (CO) 被确定为彗星昏迷的重要组成部分.
- 碳化合物的存在与观察到的早期尘埃活动相关.
结论:
- 一氧化碳 (CO) 被确定为哈雷波普彗星早期活动的主要驱动因素.
- 这一发现为控制彗星在大日中心距离的排气机制提供了洞察力.
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