The object forming there was a protostar — or, spoiler alert, the protosun.

那里的物质会形成原恒星，或者说，剧透警告哦，就是太阳的前体。

So you'll start to form a protostar.

于是你会开始形成一颗原星。

Unlike an adult star, a protostar releases its heat entirely by a process of convection.

与成年恒星不同，原恒星完全通过对流过程释量。

He was one of the first people to suggest that young stars formed from protostars.

他是首批提出年轻恒星由原恒星形成的者之一。

That kind of light can pierce the dark disk, and when we use infrared telescopes we can see the protostars forming in the centers of those disks.

这种光可以穿透黑色的星盘，当我们使用远镜时，我们可以看到原恒星在星盘中心形成。

The protostar warms up as it becomes denser, but it is still too small and cold to produce energy by fusing hydrogen in its core.

原恒星随着密度增加而升温，但由于体积过小、温度过低， 尚无法通过核心氢聚变产生能量。

And a protostar is basically the young star of, you know, this ball of gas where nuclear reactions are getting started, but it's also a disk.

原恒星基本上是一颗年轻的恒星，你知道， 这颗气体球中的核反应刚刚开始，但它也是一个圆盘。

Infrared space telescopes, such as Spitzer and Hubble, have given faint glimpses of protostars, but mostly they are too heavily shrouded by the dark dust clouds.

空间远镜， 如斯皮策和哈勃，已对原恒星提供了模糊的窥视，但多数情况下， 它们被浓密的黑暗尘埃云严重遮蔽。

Hsu worked on his protostar model while at Berkeley and was the head of the astronomy department there by the time he presented the full review of his isothermal sphere model in 1986. Today, Hsu holds tenure at Berkeley.

徐遐生在伯克利期间致力于原恒星模型研究， 并于1986年全面回顾等温球模型时， 已担任该校天文系主任。如今，徐遐生在伯克利享有终身教职。