论文标题
宇宙的第一人生
First Life in the Universe
论文作者
论文摘要
在这里，我们问了一个简单的问题，即“在最早的宇宙时间，生命最早出现在宇宙中？”鉴于我们对当今宇宙的了解，这个问题可能有一些部分答案，但是仍然需要很多猜测。如果一般的生命要求恒星作为其主要能源，并且使用比最初在大爆炸场景中生产的元素建立块，那么当宇宙的年龄少于11亿年时，就会出现第一人生。当时，产生Hypernovae的重元素在相应的红移中爆炸。} $ z $ \，\ gapprox \，45，显着高于通常假设（$ z \ 6 $）。最近在$ z> 9 $上发现的星系可能会为假设的时间尺度短得多，这比广泛认为的时间范围要短得多。
Here, we ask a simple question, i.e. "at what cosmic time, at the earliest, did life first appear in the universe?" Given what we know about the universe today, there may be some partial answers to this question, but much will still have to be left to speculation. If life in general requires stars as its primary energy source and uses elemental building blocks heavier than those initially produced in a Big Bang scenario, first life could have appeared, when the universe was considerably less than 0.1 billion years old. At that time, heavy element producing hypernovae exploded at corresponding redshifts.} $z$\,\gapprox\,45, significantly higher than commonly assumed ($z \approx 6$). The recent discovery of a galaxy at $z > 9$ could provide supporting evidence for the hypothesis of a very much shorter time scale than what is widely believed.
