The Crab Pulsar is slowing down.
蟹状星云脉冲星变慢。
There is an object which we call the Crab Pulsar.
有一个物体叫做，蟹状星云脉冲星。
And so here you have the data on the Crab Pulsar.
这是蟹状星云脉冲星的数据。
Crab Pulsar rotates about 30 times each second.
蟹状星云波霎每秒大约自转30次。
The Crab Pulsar rotates about 30 times each second.
蟹状星云波霎每秒大约自转30次。
The mass of the Crab Pulsar is not too different from that of the sun.
蟹状星云脉冲星的,质量和太阳不差太多。
So the Crab Pulsar alone generates about 150,000 times more power than the sun.
蟹状星云脉冲星本身，散发的能量比太阳多，150000倍。
The Crab pulsar, the best-known example of a bright pulsar wind nebula, is about 950 years old.
蟹状星云脉冲星是脉冲星风星云中最为著名的一个，但它已经950岁了。
And this object, this pulsar in the Crab Nebula is radiating copious amounts of x-rays, of gamma rays.
这个物体，这蟹状星云的脉冲星，辐射出丰富的x射线，以及伽马射线。
In brilliant blue, this is the pulsar wind nebula of the Crab nebula in the constellation of Taurus.
这个绚丽的蓝色是金牛座星系中蟹状星云的脉冲风星云。
It's on the Web, and I show you a picture that many of you probably haven't seen yet, which is the center part of the Crab Nebula, and the pulsar is located here.
它在网上有，我给你们看的是，大部分人没见过的，也就是蟹状星云的，中心部分，中子星在这里。
And Chandra made a picture very recently of the Crab Nebula, of the pulsar, and that's what I want to show you now.
钱德拉最近做了个，蟹状星云的图，中子星的图，我现在给你们看。
Perhaps the most famous pulsar lies within the Crab Nebula, the remnant of a supernova explosion that was observed in 1054.
最有名的波霎，或许要算是蟹状星云里头的那颗了，这片星云是1054年观测到的超新星爆炸的残骸。
Perhaps the most famous pulsar lies within the Crab Nebula, the remnant of a supernova explosion that was observed in 1054.
最有名的波霎，或许要算是蟹状星云里头的那颗了，这片星云是1054年观测到的超新星爆炸的残骸。
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