Photosynthesis in Hydrogen-Dominated Atmospheres
نویسندگان
چکیده
منابع مشابه
Photosynthesis in Hydrogen-Dominated Atmospheres
The diversity of extrasolar planets discovered in the last decade shows that we should not be constrained to look for life in environments similar to early or present-day Earth. Super-Earth exoplanets are being discovered with increasing frequency, and some will be able to retain a stable, hydrogen-dominated atmosphere. We explore the possibilities for photosynthesis on a rocky planet with a th...
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In the strong magnetic elds of typical radio pulsars atomic lines and photoionization edges lie in the soft X-ray part of the spectrum giving the dominant contribution to the opacity. Improved photoionization cross sections are presented for a hydrogen atmosphere and magnetic elds of 10 11 ? 10 13 G, exhibiting novel Beutler{Fano resonance features due to the contribution of autoionizing atomic...
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Super Earth exoplanets are being discovered with increasing frequency and some will be able to retain stable H2-dominated atmospheres. We study biosignature gases on exoplanets with thin H2 atmospheres and habitable surface temperatures, by using a model atmosphere with photochemistry, and biomass estimate framework for evaluating the plausibilty of a range of biosignature gas candidates. We fi...
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ژورنال
عنوان ژورنال: Life
سال: 2014
ISSN: 2075-1729
DOI: 10.3390/life4040716