恒星内部核反应区的振荡

OSCILLATIONS IN NUCLEAR REACTION SYSTEMS INSIDE STARS

用非平衡热力学理论处理受引力和温度梯度影响的热核反应系统的反应扩散方程，考虑３α（３个Ｈ４ｅ合成Ｃ１２）反应的粒子数密度的振荡。ｇ－Ｔ可激发超临界的振荡分歧，而压力的影响则使振荡衰减。

A reaction-diffusion equation describing thermonuclear reaction system affected by gravitatior force and temperature gradient is obtained by using the theory of noneguilibrium thermodynanics.We take 3α (three H 4 e are made into one C 12 as an example to investigate the oscillations related to the partical number density in the nuclear reaction system inside stars.The supercritical oscillating bifurcation with time exists in the 3α reaction system,which is excited only by the (g-T) effect,while the oscillation excited by the pressure effect is decaying