And in the center is a white dwarf.

中间是一颗。

We now call such stars -- white dwarfs.

我们现称这种恒为——。

Or, it seems, when you're cruising past a white dwarf star.

或者可以说你缓慢驶过一颗时。

Smaller stars like the sun leave behind what are called white dwarves.

像太阳这样较小的恒会留下。

So in essence it's cannibalizing its companion hydrogen-rich star.

从本质上说，食富含氢的恒同伴。

The object was too massive to be a white dwarf or a neutron star.

这个物体的质量太大，不可能是或中子。

By itself it wouldn't be visible from Earth.

自身的光我们地球上是看不到的。

And how neutron stars, white dwarfs and black holes are created in the first place.

以及中子、和黑洞最初是如何形成的。

The event involves thermonuclear explosions that take place on a star called a white dwarf.

该事件涉及发生一颗名为的恒上的热核爆炸。

The white dwarf's gravity is so powerful it can suck hydrogen off of that companion.

“的引力非常强，以致于会取同伴的氢元素。

White dwarfs—the ultimate destiny of stars like the sun—maximize the pollution signal.

类似太阳一样终极命运的恒使得污染的信号最大化。

It contains two gravitationally linked stars – a white dwarf and a red giant.

它包含两颗引力相互作用的恒——一颗和一颗红巨。

The explosions happen because the white dwarf's gravity has pulled material from a companion star.

爆炸的发生是因为的引力引了伴上的物质。

Now, it might be stable, orbiting in this way, for perhaps one or two hundred years.

这颗可能就这样稳定环绕了一两百年。

NASA describes a white dwarf as the remains of an Earth-sized star that died.

美国国家航空航天局将描述为一颗地球大小的恒死亡后的残骸。

Over 10,000 white dwarfs have now been found in our galaxy.

我们的系中已经发现了一万多颗。

A white dwarf is the stellar equivalent of a shrunken but feisty old-age pensioner.

从某种程度上说，是一颗虽然已经萎缩，但仍旧不服老的高龄恒。

One's a white dwarf-the corpse of something that used to be a star in the distant past.

一颗是，即“远古时期某个恒的尸体。

That planet eating balloon deflates 9.5 billion years down the line, leaving a white dwarf in its place.

这个吃人气球将95亿年后彻底收缩，留下一颗。

The glow in a planetary nebula is due to the hot central white dwarf exciting the gas.

行状云中的光芒是由中央炽热的激发气体产生的。