However, if the supernova remnant exceeds three solar masses, conventional physics suggests a black hole should be left behind.

然而，如果超新星的残核大于三个太阳质量，按常规物理法则来说，就将成为黑洞。

youdao

And clearly, if the mass of that compact object is way larger than three solar masses, then there is no doubt in our minds that this is a black hole.

如果质密物体的质量，大于，太阳质量的三倍，毫无疑问我们就认为，它是个黑洞，从那时起，很多黑洞。

youdao

So you have three point masses, and they are connected with massless rods.

你们有个三角物体，它们由无质量棒相接。

youdao

The other three whose masses are known are less dense, so presumably have more hydrogen.

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Dr Matese reckons it could weigh as little as three jovian masses.

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