Abstract
We show that, within our present understanding of what could be alien life and knowledge of planetary physics, the simultaneous detection of O 3 and H 2 O, in the atmosphere of a planet located in the outer part of the habitable zone of its star, is a good criterion for remote detection of primitive life.
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Léger, A. (1997). Life Signatures on Exoplanets. In: Eiroa, C., Alberdi, A., Thronson, H., De Graauw, T., Schalinski, C.J. (eds) Infrared Space Interferometry: Astrophysics & the Study of Earth-Like Planets. Astrophysics and Space Science Library, vol 215. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5468-0_7
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DOI: https://doi.org/10.1007/978-94-011-5468-0_7
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