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。
They come in two types, long and short, with the former the most common and thought to be caused by the core-collapse of a supernova.
伽马射线爆有长时间的和短时间的两种，其中据信由超新星核的坍塌引起的长时间伽马射线爆是最常见的。
When a star has used up its nuclear fuel, its core can collapse and it becomes a supernova.
当一颗恒星燃尽了原子核能，其核心就会瞬间爆炸形成一颗超新星。
When a star has used up its nuclear fuel, its core can collapse and it becomes a supernova.
当一颗恒星燃尽了原子核能，其核心就会瞬间爆炸形成一颗超新星。
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