But they didn't have to scoop a chunk of neutron degenerate matter from the surface of a real neutron star either.

但他们也并不需要从一颗真正的中子星表面挖来一块中子星简并物质。

youdao

They go around in the plane of the blackboard, say, and so this matter cannot fall radially in but it will fall in and spiral in and forms what we call an accretion disk around the neutron star.

平面内绕行，这个质量不是，呈放射状减小，而是，呈螺旋形减小，我们称之为中子星，周围的吸积盘，这个叫做吸收星。

youdao

And I take a little bit of matter m, and I drop it from a large distance onto the neutron star.

从很远的距离扔到，中子星上，那个小物体。

youdao

So if we see the positrons coming from a particular direction, it means astrophysics like a pulsar (a type of neutron star) is responsible for the signal, not dark matter.

BBC: Alpha Magnetic Spectrometer to release first results