摘要
本文根据吸秘盘理论与天文观测结果,给出一个恒星在星云盘中形成的模型.通过计算角动量方程,获得了质量定常分布ρ(r)～r_(-β)(β=0,1,2)时的一般性解.对1M恒星的数值解表明:恒星在转动磁化的星云盘中形成时,角动量确实发生了巨大转移;并且,β=2的解能较满意地解释太阳系的角动量奇异性.
We propose a model for the formation of a star in a nebular disk on the basis of the accretion disk theory and the phenomena observed in recent years. By calculating the angular momentum equation, we have obtained the general solutions under the condition of the constant mass distribution, i.e. ρ(r)∽r-β(β= 0,1,2) Numerical solution for a 1 M star shows that the angular momentum of the disk is indeed being transferred from the disk during the star formation in a rotating and magnetized nebular disk, and that the solution of β = 2 gives comparatively satisfactory explanations for the singularity of the angular momentum in the solar system.
