An energetic criterion for the development of life in an exoplanet
DOI:
https://doi.org/10.47456/Cad.Astro.v3n2.38561Keywords:
astrobiology, exoplane, development of lifeAbstract
I this article we review the Proportional Evolutionary Time hypothesis recently proposed in the literature. This proposal suggests a relation between the maximum incident energy on the surface of a exoplanet and the time required for the evolution of complex life. As a consequence, one can also suggest a relation to the spectral classification of the host star and the probability that one its exoplanets has attended the energetic conditions for the development of life. We also discuss possible extensions and applications. As an instance of one of our results, we find that the incidence of energy on Venus is sufficient to allow the evolution of complex life. The same did not happen to Mars. We also found an counter example of the PET hypothesis. The exoplanet GJ 887 b orbits a M-type star and but has received energy enough for the development of complex life.
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J. A. de Freitas Pacheco, Vida no Universo (EDUSP, São Paulo, 2020).
E. A. Bell et al., Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon, Proceedings of the National Academy of Sciences 112(47), 14518 (2015).
P. Ward e D. Bronnlee, Rare Earth: Why Complex Life Is Uncommon in the Universe (Copernicus books, New York, 2003).
J. Haqq-Misra, R. K. Kopparapu e E. T. Wolf, Why do we nd ourselves around a yellow star instead of a red star?, International Journal of Astrobiology 17(1), 77-86 (2018).
J. Haqq-Misra, Does the evolution of complex life depend on the stellar spectral energy distribution?, Astrobiology 19(10), 1292 (2019).
D. O. Gough, Solar Interior Structure and Luminosity Variations, Solar Physics 74(1), 21 (1981).
I. Baraffe et al., New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogenburning limit, Astronomy & Astrophysics 577, A42 (2015).
D. Schulze-Makuch et al., A two-tiered approach to assessing the habitability of exoplanets, Astrobiology 11(10), 1041 (2011).
D. Souto et al., Stellar and planetary characterization of the ross 128 exoplanetary system from APOGEE spectra, The Astrophysical Journal 860(1), L15 (2018).
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Copyright (c) 2022 Hermano Velten, Douglas Delladea, Arthur Primola
This work is licensed under a Creative Commons Attribution 4.0 International License.