West R A, Karkoschka E, Friedson A J, Seymour M, Baines K H, Hammel H B
Earth and Space Sciences Division, California Institute of Technology, Pasadena 91109.
Science. 1995 Mar 3;267(5202):1296-301. doi: 10.1126/science.7871426.
The aftermath of the impacts of periodic comet Shoemaker-Levy 9 on Jupiter was studied with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. The impact debris particles may owe their dark brown color to organic material rich in sulfur and nitrogen. The total volume of aerosol 1 day after the last impact is equal to the volume of a sphere of radius 0.5 kilometer. In the optically thick core regions, the particle mean radius is between 0.15 and 0.3 micrometer, and the aerosol is spread over many scale heights, from approximately 1 millibar to 200 millibars of pressure or more. Particle coagulation can account for the evolution of particle radius and total optical depth during the month following the impacts.
利用哈勃太空望远镜上的宽视场行星相机2对周期彗星苏梅克-列维9号撞击木星的后续情况进行了研究。撞击产生的碎片颗粒深棕色的颜色可能归因于富含硫和氮的有机物质。最后一次撞击一天后的气溶胶总体积相当于半径为0.5千米的球体的体积。在光学厚度较大的核心区域,粒子平均半径在0.15至0.3微米之间,气溶胶分布在许多标高范围内,压力范围约为1毫巴至200毫巴或更高。粒子凝聚可以解释撞击后一个月内粒子半径和总光学深度的变化。