摘要翻译:
我们利用地球相似度指数、光合作用数学模型和生物生产力模型对半人马座αB周围潜在岩石系外行星的可居住性进行了初步评估。考虑到与当前地球大气相似的系外行星大气,我们发现地球相似指数和生物生产力模型的预测是一致的。光合作用的数学模型显然失败了,因为它没有明确地考虑温度。对于半人马座αB的情况,几次模拟运行给出了11颗位于宜居带的行星。应用上述指标,我们选择了5颗更容易出现光合生命的系外行星;表明它们中的两个在原则上比地球有更好的条件来生存这种生命。
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英文标题:
《Possibilities of life around Alpha Centauri B》
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作者:
Antolin Gonzalez, Rolando Cardenas and John Hearnshaw
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最新提交年份:
2014
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分类信息:
一级分类:Physics 物理学
二级分类:Earth and Planetary Astrophysics 地球和行星天体物理学
分类描述:Interplanetary medium, planetary physics, planetary astrobiology, extrasolar planets, comets, asteroids, meteorites. Structure and formation of the solar system
行星际介质,行星物理学,行星天体生物学,太阳系外行星,彗星,小行星,陨石。太阳系的结构和形成
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一级分类:Quantitative Biology 数量生物学
二级分类:Other Quantitative Biology 其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
We make a preliminary assessment on the habitability of potential rocky exoplanets around Alpha Centauri B. We use several indexes: the Earth Similarity Index, a mathematical model for photosynthesis, and a biological productivity model. Considering the atmospheres of the exoplanets similar to current Earth's atmosphere, we find consistent predictions of both the Earth Similarity Index and the biological productivity model. The mathematical model for photosynthesis clearly failed because does not consider the temperature explicitly. For the case of Alpha Centauri B, several simulation runs give 11 planets in the habitable zone. Applying to them above mentioned indexes, we select the five exoplanets more prone for photosynthetic life; showing that two of them in principle have better conditions than Earth for this kind of life.
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PDF链接:
https://arxiv.org/pdf/1401.2211


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