太阳质量损失对流星群轨道改变的长期影响

将作者在变质量天体力学所得理论结果应用于太阳质量损失对流星群轨道根数变化的长期效应上。太阳质量损失包括光子辐射和太阳风造成的质量损失。利用G—M型变质量天体轨道根数变化方程的一阶和二阶解对15个流星群轨道半长轴、近日点距离、轨道周期和近日点经度因太阳质量损失造成的每世纪的长期改变效应做了数值计算,并得出计算结果。其计算结果表明,太阳质量损失使流星群轨道半长轴每世纪的改变效应较明显,它们同太阳距离的扩大影响值得关注,但对轨道周期的拉长每世纪的影响甚小,对近日点经度只有量级变化小到可以略而不计。

The Secular Influence of Solar Mass-Loss on the Orbital Elements of Meteor Streams

The secular influence of solar mass-loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper.The mass-loss includes the light radiation and solar wind.The numerical computation for the secular variable of the semi-major axis,solar distance at perihelion,orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of Gylden-Meshcherckii equations.The results show that the solar mass-loss extends the semi-major axis,the distance at perihelion and orbital periods of the meteor streams,especially,the extensive influence on the semi-major axis is not overlooked,but this influence on other orbital elements may be neglected.