试论方志记载的彗星的声

把极光的成因和发声机制与彗尾的成因和发声机制作类比，认为当I型彗尾与地球接触时，可以因彗尾的带电微粒与地球高层大气的等离子粒子互相撞击、扰动等，加上某些未知的原因而发出低频声。在这种物理机制的条件下，对中国14个地方志记载的9颗有声的彗星进行星历表计算，选择出1861Ⅱ和1910Ⅱ（即哈雷彗星）二颗彗尾扫过地球，和1744年另一颗彗尾朝向地球的慧星（即De Cheseaux彗星）进行分析，认为前二颗彗星完全有可能发声，并为地面所接收。地方志记载是事实，后一颗还有待于进一步证实。

A Research on the Voice of Comets in Chinese Historical Records

The fact that the comet can make sound was first put f orward by the au thor in 1988,and later was also reported by his at an international meeting in F inland.But there were no special articles discussed on that then.This research p aper checks and analyses the data about the nine voiced comets which were record ed in 14 Chinese chorographies since the 18th century and also calculates their whole ephemeris.According the above analysis,the paper comes to the conclusion:m akes the conclusion that the tail of the 1861 II and 1910II,namly the Halley com e t that ever swept across the earth and made a sound which was probably entirely known by people.The six tails of the De Cheseaux comet which appeared in 1744 w ere entirely toward the earth.The sound of the comet was also probably made by t he matter dropped to the earth by the tail of the comet. The sound may come from the comet itself and reach the earth by the tail of the comet.The sound may also produce when the ionization particle bombards that of t he ionosphere of the earth or due to other undiscovered causes. There is a prodigious analogy between the physical phonation mechanism of the co met and the aurora,including the type of the sound.The phonating mechanism of th e aurora,especially its physical process,has not been completely settled as yet, neither has that of the comet in this paper. Of,course the sound of the comet recorded in some chorographies may be psycholog ical hallucination,but it is inculpable that some records are facts,particularly when the chorographies of two different provinces recorded at the some time tha t the same comet could make sound.