protostar

protostar

1. "We must continue our studies in this area to understand how the initially tiny protostar grows, layer by layer, to eventually form a massive star.

“我们必须在此领域继续开展研究，以理解宇宙中最初的很小的原恒星是如何逐步发展，最终演化成大质量恒星。

2. It was compressed enough to become a protostar but enough material was left over to form planets, moons, asteroids and comets.

压力足够使之形成一颗恒星，剩下的物质形成了行星，卫星，小行星和彗星。

3. binary protostar

原双星

4. The embryo inside the protostar is less mass.ve than the envelope; most of the mass.is still falling inward

原恒星内部的胚胎的质量比包壳小，大部分物质一直在朝中心落去。

5. The conditions in a protostar resemble far more closely in situation in red giants, most of whose volume is caught up in stormy convection.

原恒星的条件更加类似于红巨星的情形，红巨星体积的大部分都卷入剧烈的对流中。

6. As our nebula began to collapse under its own gravity and spin faster, a dense clump of matter formed in the center. It's called a protostar.

当我们的星云在自身重力作用下崩溃和更加快速地旋转时，星云中心形成了密集的物质块。这叫做原恒星。

7. The simulation reveals how pre-stellar gases would have actually evolved under the simpler physics of the early universe to form this protostar.

模拟揭示了宇宙中分布的气体，如何在早期宇宙中相对简单的物理机制的作用下形成这种原恒星。

8. Since there is no nuclear reaction inside the protostar, a protostar is not a star yet.

由于在原恒星的核心尚未发生核聚变,它们仍不能称为真正的恒星。

9. Thus, the infant science of protostar observation has a variety of tools at its disposal.

这样一来，观测原恒星这门年轻的科学，就拥有许多种可以利用的工具了。

10. As described above, the collapse of a rotating cloud of gas and dust leads to the formation of an accretion disk through which matter is channeled onto a central protostar.

部分的重力能量在崩溃的过程中会以红外线的形式损失掉，其馀的则会用于增加天体核心的温度。