千新星

1
kilonova
两颗中子星互相绕转舞动，越转越近，最后交汇融合，除了迸发伽马暴，还产生亮度达到千倍的“千新星”(kilonova)。不但如此，双中子星并合也产生宇宙中包括金、银等在内的一些重金属元素，它是这些重金属的起源。

短语

1
在任一给定的星系中观测到Ia型超新星的机会是很小的，每个星系每千年预期只有一到两次。
The chance of observing a type Ia supernova in any given galaxy is low. Only one or two are expected to pop off per galaxy per millennium.
2
他们注意到新星的行为不像以往那样千篇一律和不灵活，而是表现出一种对大自然探索的愉悦。
They all watched as his behavior changed from stereotypic and inactive behavior to a beautiful exhibition of natural exploratory behavior and delight.
3
采用钱德拉新数据，估计N49的年龄约为5千年，其爆炸的威力大约是一般超新星爆炸的两倍。根据这些初步结果推测，初始的爆炸是一个巨大的恒星崩溃造成的。
Using the new Chandra data, the age of N49 is thought to be about 5,000 years and the energy of the explosion is estimated to be about twice that of an average supernova.

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