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It's pretty rare in known neutron stars - basically they need to be hit by something and knocked off-axis, which doesn't happen often in space, and they're precessing at frequencies too low for LIGO. |
中文意思: 想一想橄榄球:如果扔得好,它将绕它的长轴稳定的自旋;如果扔坏了,它的自旋轴将偏离长轴而摆动起来。 |
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