Late in the infinite gravitational evolution to rapid contraction of the late star ° Star, Star body fuel burned, the rapid contraction, the density improved. When the neutron star mass is greater than the quality of contraction degeneracy pressure is less than the time that the neutron star will collapse into a black hole density over.
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No. 2
The black hole. To the final stage of stellar evolution. Neutron star formed by the further contraction, there is a huge gravitational field, any electromagnetic waves emitted it can not be spread out into isolated objects invisible, people can only be determined through the gravitational pull of its existence.
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No. 3
演化到晚期可坍缩成为比中子星密度更高的黑洞的星。
No. 4
坍缩星collapsed star
质量在恒星质量范围(10^32～10^35克)内的黑洞。恒星演化的晚期阶段迅速收缩为一个密度很大的天体，当质量等于太阳质量的两倍以上时形成不能看见的黑洞。
演化到晚期可坍缩成为比中子星密度更高的黑洞的星。