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exoplanets's Issues

table problem!!

DO NOT EDIT LOCALLY FOR THE TABLES!

USE ONLINE EDIT FOR ALIGNMENT

改错+添加新内容

  • 查看错别字
  • 对于表述不清的部分重新表述
  • 添加新内容例如最新进展

话说其实我一直在跟踪最新进展,但是也没有放过来,以后我可以根据 InterImmShare 里的东西整理过来什么的。

Resources

Fermi Paradox and Civilization

  1. The longevity of habitable planets and the development of intelligent life: 文章的思路是考察行星的总的可以适合生命存在的时间 t_h 和生命产生的时间 t_e 。以地球为例的话,t_h = 6 Gyr, t_e = 4 Gyr. 也就是说这两个时间尺度相差不多,很接近。从而导致文明的存在时间比较短,也不怎么容易产生非常高等的文明。(评论:除非,文明成为多行星,遍布很多地方。)
  2. 上面这篇文章提到了 Carter 的文章的观点,说生命需要演化的时间非常长。
  3. Globular Clusters as Cradles of Life and Advanced Civilizations: 基本上就是说 globular clusters 因为比较古老,星际环境温和的时间也久,所以可能更加适合文明的出现和发展。并且用了一个模型来体现这个想法。
  4. 另一个理论(来自 ANU):生命不难出现,但是难在建立一个足够稳定的生态系统。The Case for a Gaian Bottleneck: The Biology of Habitability 文章是收费的,从作者那里弄到的 PDF 在这里:
    2270.pdf

给已知地外行星的移民价值分级

今天在微博上推#系外行星档案#的内容。我觉得作为星际移民局中心,应该把目前已知的地外行星(主要是类地行星)按移民价值进行分级,主要可能需要考虑距地球的距离,表面温度(是否在宜居带),有无水(水的含量),次级可能需要考虑行星的大小,中心恒星的状态等等。

对这方面的了解的不多,@emptymalei 知道有什么相关的研究么。?

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