Impact of Comet Shoemaker-Levy 9 on Jupiter: Modelling the First 200 Seconds

Shoemaker-Levy 9 彗星对木星的影响：模拟前 200 秒

• 批准号: 9322509
• 负责人: Mordecai-Mark Mac Low
• 金额: $ 2.93万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-15 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9322509&HistoricalAwards=false
• 关键词: Impact; Comet; Shoemaker; Levy; Jupiter

9322509 Mac Low The fragments of Comet Shoemaker-Levy 9 will strike Jupiter in July 1994. Semi-analytic methods and full hydrodynamics codes will be will be utilized to model Jupiter's atmosphere during the first 200 seconds after the impact of a fragment. These models provide initial conditions for the airburst. The key point is that the energy released by these impacts is large enough that the explosion breaks out of the atmosphere. the focus will be on developing detailed numerical simulations of the airburst and the fireball. The primary goal will be to produce light curves, as might be observable from the Galileo and Voyager 2 spacecraft, or as reflected off well-placed Jovian satellites. Other goals are to predict the amount and velocity of material thrown out of the atmosphere (and where it might be expected to re-enter the atmosphere), the amount of mass raised to high altitudes where unusual clouds might form, and the energy deposited at various depths in the atmosphere. M #PD 9322509 Mac Low The fragments of Comet Shoemaker-Levy 9 will strike Jupiter in July 1994. Semi-analytic methods and full q s q s ! !; !3 F s s Times New Roman Symbol & Arial Roman Wingdings B Script 1 MS LineDraw 2 Modern 1 Courier 5 Courier New Fences MT Extra " h " e( e( e . Claudette Merrick mrenninger

9322509 MAC低彗星制鞋匠levy 9的碎片将在1994年7月撞击木星。将使用半分析方法和完整的流体动力代码来模拟片段影响后的前200秒钟。 这些模型为空气爆发提供了初始条件。关键点是，这些影响释放的能量足够大，以至于爆炸从大气中爆发出来。 重点是开发空气爆和火球的详细数值模拟。 主要目标是产生光曲线，就像伽利略和Voyager 2号航天器一样可以观察到的光曲线，或者反射出良好的Jovian卫星。 其他目标是预测从大气中扔出的物质的数量和速度（以及可能会重新进入大气的地方），将质量升高到高海拔高度，可能形成异常的云，以及在大气中各个深度沉积的能量。 M #PD 9322509 MAC低彗星制鞋匠的碎片9将于1994年7月罢工木星。半分析方法和完整的Q S Q S！ ！ ！3 f s simes新罗马符号和arial roman wingdings b脚本1 MS LineDraw 2 Modernraw 2 Courier 5快递New Fences MT Extra Extra Extra Extrue“ H” E（e。