Evaluating the effect of immeasurable parameters of exoplanets on their habitability using latitudinal energy balance model

Majid Bahraminasr, Seyed Javad Jafarzadeh, Fatemeh Montazeri
(Submitted on 18 Sep 2018)

Among different models for determining the habitable zone around a star, Latitudinal Energy Balance Model (LEBM) is very beneficial due to its parametricity, which keeps a good balance between complexity and simulation time. This flexibility makes it a good tool to assess the impact of physical parameters on the temperature and the habitability of a planet. Among different physical parameters of a planet, some of them, up until now, cannot be determined by any method, like the planet’s spin obliquity, diurnal period, ocean-land ratio, and pressure level. In this work, we apply this model to study the effect of these immeasurable parameters on the habitability of three exoplanets located in inner, outer and middle of their HZ, each served as a representation for their realm in HZ. Among the examined parameters pressure effect is more straightforward. It has a nearly direct relation with temperature and also with the habitability in the case of a cold planet. The effect of other parameters are discussed with details.

Comments:    18 pages, 11 figures , 2 tables
Subjects:    Earth and Planetary Astrophysics (astro-ph.EP)
Cite as:    arXiv:1809.06907 [astro-ph.EP] (or arXiv:1809.06907v1 [astro-ph.EP] for this version)
Submission history
From: Majid Bahraminasr
[v1] Tue, 18 Sep 2018 19:52:05 GMT (3160kb,D)
https://arxiv.org/abs/1809.06907
Astrobiology