一次哈雷彗星爆发现象的观测和分析

哈雷彗星于1986年3月21日到26日期间,经历了一次非正常光变,产生了爆发.本文对用窄波段光电光度观测到的爆发过程中各波段所发生的基本物理机制和化学反应过程进行了分析和讨论. 

Observation and Analysis for the Outburst of the Halley's Comet

During Mar. 20-Apr. 3 of 1986 a photoelectric photometry for the Halley's comet is taken by using the 60 cm telescope at Yunnan Observatory. The diaphragm used was 2 mm which corresponds to a field of view about 33". Six standard narrow filters were used in the observations.It is obvious from these results that in the comet there was a violent outburst which occurred after Mar. 21 but before Mar. 26. During the period of this outburst the magnetudes in the bands of C₃, CO+ + N₂+ and two continua were much brighter than before and after, even brightening up to 4.41 magenitudes in the band of CO+ + N₂+. By contrast, the variations in the C₂ and CN bands were quite small. After Mar. 26 everything recovered to normal.In its analysis and discussion about this outburst phenomenon, the possible mechanism and chemical reaction processes involved is present.