Multiple wavelength optical observations of a long‐lived meteor trail
Multiple wavelength optical observations of a long‐lived meteor trail
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对长寿命流星轨迹的多波长光学观测
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Michael J. Taylor
中科院分区：
文献类型：
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作者：
B. Clemesha;A. Medeiros;D. Gobbi;H. Takahashi;P. Batista;Michael J. Taylor
在572.5 nm、557.7 nm、630.0 nm、865.5 nm波长和715至930 nm近红外波段观测到了长寿的流星轨迹。在所有这些波长下都检测到了踪迹，可能865.5 nm除外，在那里它的识别是边缘的。通过宽带NIR 715 - 930 nm滤光片观察时间最长（17分钟）。事实上，这条尾迹在865.5 nm（0-1）波段的分子氧中只能勉强看到，并且在宽带近红外图像中最强，这对早期的建议提出了严重的质疑，即来自长寿流星尾迹的红外光对应于查普曼机制激发的分子氧的发射。
A long‐lived meteor trail has been observed at wavelengths of 572.5 nm, 557.7 nm, 630.0 nm, 865.5 nm and in the near infrared band from 715 to 930 nm. The trail was detected at all these wavelengths, with the possible exception of 865.5 nm, where its identification was marginal. It was seen longest (17 minutes) through the wide band NIR 715‐930 nm filter. The fact that the trail was only marginally visible in the 865.5 nm (0–1) band of molecular oxygen, and was strongest in the wide‐band NIR image, raises serious doubts about an earlier suggestion that the infrared light from long‐lived meteor trails corresponds to emissions from molecular oxygen excited by the Chapman mechanism.