the formation of star

Astronomers have long thought that the formation of a star and its solar system was straightforward .

长期以来，天文学家们认为一颗恒星及其恒星系统是直接形成的。

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 .

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。

1 the earth consists of matter that is left over from the formation of a star .

地球是由恒星形成时剩余的物质形成的。

At the conclusion part of this thesis , I will focus on the formation of star industry system model and its operation rules .

本文在结论部分将着重讨论明星产业系统模型的形成及其运行规律。

In theory , the first step toward producing a millisecond pulsar is the formation of a neutron star when a massive star goes supernova . Supernova remnants : What is left after a heavy star violently explodes .

理论上，形成一颗毫秒脉冲星的第一步，是一个大质量恒星在成为超新星而爆发后留下的中子星。