Exoplanet Biosignatures: Future Directions
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Author
Walker, Sara I.
Bains, William
Cronin, Leroy
DasSarma, Shiladitya
Danielache, Sebastian
Domagal-Goldman, Shawn
Kiang, Nancy Y.
Lenardic, Adrian
Reinhard, Christopher T.
Moore, William
Schwieterman, Edward W.
Shkolnik, Evgenya L.
Smith, Harrison B.
Note: Order does not necessarily reflect citation order of authors.
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https://doi.org/10.1089/ast.2017.1738Metadata
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Walker, S. I., W. Bains, L. Cronin, S. DasSarma, S. Danielache, S. Domagal-Goldman, B. Kacar, et al. 2018. “Exoplanet Biosignatures: Future Directions.” Astrobiology 18 (6): 779-824. doi:10.1089/ast.2017.1738. http://dx.doi.org/10.1089/ast.2017.1738.Abstract
Abstract We introduce a Bayesian method for guiding future directions for detection of life on exoplanets. We describe empirical and theoretical work necessary to place constraints on the relevant likelihoods, including those emerging from better understanding stellar environment, planetary climate and geophysics, geochemical cycling, the universalities of physics and chemistry, the contingencies of evolutionary history, the properties of life as an emergent complex system, and the mechanisms driving the emergence of life. We provide examples for how the Bayesian formalism could guide future search strategies, including determining observations to prioritize or deciding between targeted searches or larger lower resolution surveys to generate ensemble statistics and address how a Bayesian methodology could constrain the prior probability of life with or without a positive detection. Key Words: Exoplanets—Biosignatures—Life detection—Bayesian analysis. Astrobiology 18, 779–824.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016573/pdf/Terms of Use
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