1972年8月事件期间四个耀斑引起的日球层扰动的模拟研究

1972年8月发生的太阳耀斑事件是第20太阳周期内最重大的事件,我们在改进Hakamada-Akasofu方法（以下简称HA方法）的基础上,对事件期间四个较大的耀斑所引起的行星际扰动进行了计算机模拟研究,并取得了令人满意的结果。这些模拟包括赤道平面上一系列二维的激波形状、激波传播以及空间飞船先驱者9号、先驱者10号（以下简称P9、P10）和地球位置上的粒子速度-时间曲线。最后,本文还将该模拟结果与Dryer等人所做的同一事件的一维MHD模拟结果做了比较,并对模拟结果和HA方法本身做了一些讨论。

A SIMULATION STUDY OF HELIOSPHERIC DISTURBANCES INITIATED BY 4 SELECTED FLARES DURING THE AUGUST 1972 EVENTS

The events occurred on the sun in August 1972 were the most significant ones during 20th solar cycle. We selected four major flares at that period and made a simulation of the interplanetary disturbances generated by those flares by use of an improved kinematic method developed by Hakamada and Akasofu in 1982. These simulations include a set of two dimensional shock configurations on the equatorial plane and bulk speed-time charts at the locations of the Spacecrafts Pioneer 9, Pioneer 10 and the earth which correspond to the distances of 0.78 AU, 2.2, AU and 1 AU from the sun, respectively. The simulated results were compared with the observations on those spacecrafts and the ground. We found that they agree quite well. Meanwhile, the simulations of HA method were also compared with one of one-dimensional MHD by Dryer et al. Finaly some discussions about simulated results and methods were made.