It is the clock of the rotating neutron star.

中子星旋转的计时，如果中子星。

youdao

So there's no question that in the case of this rotating neutron star, all the energy that it radiates is at the expense of rotational kinetic energy.

毫无疑问，在这个，旋转中子星的例子里，所有辐射的能量，都是以旋转动能，为代价。

youdao

The white source near the center of the image is a dense, rapidly rotating neutron star, or pulsar, all that remains of a core-collapse supernova explosion.

图片靠近中心部分的白色光源为一种密度大，急速旋转的中子星，或是脉冲星--都是核心坍缩的超新星爆炸的残留物。

youdao

It was that pulsars are rotating neutron stars, the super-dense last stage of collapse of a star not quite heavy enough to form a black hole.

ECONOMIST: Obituary