學術資源整合系統-相關推薦
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| 作者 | Chilong Lin, et al. |
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| 出版日期 | 2010 |
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| 著作名稱 | Video Observation of the Leonid 2001 Activity
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| 摘要 | We performed a video observation on the Leonid meteor storm on 2001 November 18 UT. Totally 3712 meteors, including 22 non-Leonid ones, were recognized via eyeball inspection from the records. The brightness of meteors was measured with the software ＄LiMovie＄ and the population index r=2.01＄\pm{0.05}＄ (-8＄\le＄mag＄\le＄-3) was thus derived. We also derived the mass distribution index ＄s=1.82\pm{0.09}＄ with data obtained from only one-station observation. The main peak of the activity appeared at ＄\timeform{18h25m }＄ UT with an effective ZHR＄_{90^{\circ} \times 67^{\circ}}＄=52,606 (mag＄\le＄ 6.5). There are also compatible sub-peaks and strong plateaus aside the main peak. One of them may correspond to the predicted 9-rev encounter. We treated the cross section of the influx zone as a trapezoid and considered an overall airmass extinction. The peak "influx rate" was thus derived as ＄\sim 6.76 \times 10^{-5}＄ km＄^{-2}＄ s＄^{-1}＄ (mag＄\le＄ 6.5) and the "spatial number density" ＄\sim 9.52 \times 10^{-7}＄ km＄^{-3}＄ (mag＄\le＄ 6.5). |
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| 系統號 | NO000003273 |
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