IR observation of a persistent meteor train
IR observation of a persistent meteor train
复制标题
持续流星列车的红外观测
作者：
M. Hapgood
使用仅对 700 至 900 nm 波长之间的辐射敏感的低光电视摄像机观察到了长寿命（>32 分钟）的持续流星列车。列车的峰值发射量约为 2 × 1017 光子 s−1 m−1，产生列车的流星的天顶星等校正为约 -6。这里提出，这种红外发射是由钠催化过程对大气分子氧带 (b1Σg→X3Σg) 的激发引起的，Bagaley1-3 之前曾提出这一过程是持久性流星列车可见辐射的原因。
A long-lived (>32 min) persistent meteor train has been observed with a low light television camera which was sensitive only to radiation between wavelengths of 700 and 900 nm. The peak emission from the train was about 2 × 1017 photons s−1 m−1 and the meteor which produced the train had a magnitude corrected to the zenith of about −6. It is suggested here that this IR emission arises from the excitation of the atmospheric band of molecular oxygen (b1Σg→X3Σg) by the sodium catalytic process, a process which Baggaley1–3 has previously proposed to be responsible for the visible radiation from persistent meteor trains.