Download pdf
Overview of the habitability of exoplanets several factors of habitability
- 1 Wuhan Britain-China School
- 2 IMS private school
- 3 the Affiliated High School of South China Normal University
* Author to whom correspondence should be addressed.
Abstract
By analyzing the data of the earth and the sun, we get some of the factors of a planet’s habitability, such as the distance from the star to the planet, the atmosphere, and the tidal locked effect. We use the equation of radiative equilibrium and get the orbital semi-major axis in terms of the star’s radius and the planet’s temperature and albedo. Then, according to the data of the planet and the definition of habitat zone, we can get the range of the habitat zone. We find that the relationship between the radius of the star and the planet’s radius is the radius of the star’s surface, the temperature of the planet’s surface, and the albedo. We also discussed how the albedo, the star mass, the composition of the atmosphere, and the tidal lock influence the planet’s habitability. In conclusion, the only factor of the habitability of a planet is not the distance from the sun to the planet, we need to consider more factors and re-examine the habitability of the planets.
Keywords
habitability, tidal locked, greenhouse effect, habitable zone
[1]. Monica R. Vidaurri, Sandra T. Bastelberger, Eric T. Wolf, Shawn Domagal-Goldman, Ravi Kumar Kopparapu. The Outer Edge of the Venus Zone Around Main-Sequence Stars. May 27, 2022. (https://arxiv.org/abs/2204.10919)
[2]. Royal Belgian Institute for Space Aeronomy, Venus atmosphere, mainly composed of carbon dioxide and nitrogen. https://www.aeronomie.be/en/encyclopedia/venus-atmosphere-mainly-composed-carbon-dioxide-and-nitrogen
[3]. Carroll, B., & Ostlie, D. (2017). An Introduction to Modern Astrophysics (2nd ed.). Cambridge: Cambridge University Press. doi:10.1017/9781108380980Carroll, B., & Ostlie, D. (2017). An Introduction to Modern Astrophysics (2nd ed.). Cambridge: Cambridge University Press. doi:10.1017/9781108380980
[4]. “Albedo Values.” My NASA Data, mynasadata.larc.nasa.gov/basic-page/albedo-values.”Exoplanet-catalog – Exoplanet Exploration: Planets Beyond Our Solar System.” Exoplanet Exploration: Planets Beyond Our Solar System, exoplanets.nasa.gov/exoplanet-catalog/7658/toi-700-d.
[5]. Gilbert, Emily A., et al. “The First Habitable-zone Earth-sized Planet From TESS. I. Validation of the TOI-700 System.” The Astronomical Journal, vol. 160, no. 3, American Astronomical Society, Aug. 2020, p. 116. https://doi.org/10.3847/1538-3881/aba4b2.
[6]. Kaltenegger, Lisa, and Dimitar Sasselov. “EXPLORING THE HABITABLE ZONE FOR KEPLER PLANETARY CANDIDATES.” The Astrophysical Journal, vol. 736, no. 2, IOP Publishing, July 2011, p. L25. https://doi.org/10.1088/2041-8205/736/2/l25.
[7]. Caroline, H. Tidally locked and loaded with questions.17 February,2022. https://eos.org/features/ tidally-locked-and-loaded-with-questions
[8]. Raymond, T, P. & Mark, H. Atmospheric Circulation of Tide-locked Exoplanets. September 5,2018. https://www.annualreviews.org/doi/10.1146/annurev-fluid-010518-040516
[9]. Yongyun, H. & Jun, Y. Role of ocean heat transport in climates of tidally locked exoplanets around M dwarf stars. December 30,2013. https://www.pnas.org/doi/full/10.1073/pnas.1315215111
[10]. Paul, S. Can super-rotating oceans cool off extreme exoplanets. March 08, 2021. https://www.space.com/super-rotating-oceans-extreme-exoplanets
Cite this article
Zhang,B.;Wang,M.;Xu,X. (2024). Overview of the habitability of exoplanets several factors of habitability. Theoretical and Natural Science,43,15-20.
Data availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
Disclaimer/Publisher's Note
The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of EWA Publishing and/or the editor(s). EWA Publishing and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.
About volume
Volume title: Proceedings of the 3rd International Conference on Computing Innovation and Applied Physics
© 2024 by the author(s). Licensee EWA Publishing, Oxford, UK. This article is an open access article distributed under the terms and
conditions of the Creative Commons Attribution (CC BY) license. Authors who
publish this series agree to the following terms:
1. Authors retain copyright and grant the series right of first publication with the work simultaneously licensed under a Creative Commons
Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this
series.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the series's published
version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial
publication in this series.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and
during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See
Open access policy for details).