| Literature DB >> 29938538 |
Sara I Walker1,2,3,4, William Bains5,6, Leroy Cronin7, Shiladitya DasSarma8, Sebastian Danielache9,10, Shawn Domagal-Goldman11,12, Betul Kacar13,14,15,16, Nancy Y Kiang17, Adrian Lenardic18, Christopher T Reinhard19,20, William Moore21,22, Edward W Schwieterman4,12,20,23,24, Evgenya L Shkolnik1, Harrison B Smith1.
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.Mesh：
Substances：
Year: 2018 PMID： 29938538 PMCID： PMC6016573 DOI： 10.1089/ast.2017.1738
Source DB: PubMed Journal: Astrobiology ISSN： 1557-8070 Impact factor: 4.335