Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets

Among different models for determining the habitable zone (HZ) around a star, a 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 the LEBM an excellent tool to assess the impac...

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Main Authors: Bahraminasr Majid, Jafarzadeh S. Javad, Montazeri Fatemeh, Poro Atila, Sarabi Soroush
Format: Article
Language:English
Published: De Gruyter 2020-12-01
Series:Open Astronomy
Subjects:
Online Access:https://doi.org/10.1515/astro-2020-0021
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author Bahraminasr Majid
Jafarzadeh S. Javad
Montazeri Fatemeh
Poro Atila
Sarabi Soroush
author_facet Bahraminasr Majid
Jafarzadeh S. Javad
Montazeri Fatemeh
Poro Atila
Sarabi Soroush
author_sort Bahraminasr Majid
collection DOAJ
description Among different models for determining the habitable zone (HZ) around a star, a 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 the LEBM an excellent tool to assess the impact of some key physical parameters on the temperature and the habitability of a planet. Among different physical parameters, some of them, up until now, cannot be determined by any method such as the planet’s spin obliquity, diurnal period, ocean-land ratio, and pressure level. Here we apply this model to study the effect of these unknown parameters on the habitability of three exoplanets located in the inner, outer, and middle of their optimistic HZ. Among the examined parameters, the impact of pressure 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 is discussed with details. To quantify the impact of all these unknown parameters we utilize a statistical interface which provides us with the conditional probability on habitability status of each planet.
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spelling doaj.art-6b6f824663ff4e47b8128ca83450e99a2022-12-21T21:27:45ZengDe GruyterOpen Astronomy2543-63762020-12-0129123125010.1515/astro-2020-0021astro-2020-0021Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanetsBahraminasr Majid0Jafarzadeh S. Javad1Montazeri Fatemeh2Poro Atila3Sarabi Soroush4The International Occultation Timing Association-Middle East Section (IOTA/ME), IranThe International Occultation Timing Association-Middle East Section (IOTA/ME), IranThe International Occultation Timing Association-Middle East Section (IOTA/ME), IranThe International Occultation Timing Association-Middle East Section (IOTA/ME), IranThe International Occultation Timing Association-Middle East Section (IOTA/ME), IranAmong different models for determining the habitable zone (HZ) around a star, a 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 the LEBM an excellent tool to assess the impact of some key physical parameters on the temperature and the habitability of a planet. Among different physical parameters, some of them, up until now, cannot be determined by any method such as the planet’s spin obliquity, diurnal period, ocean-land ratio, and pressure level. Here we apply this model to study the effect of these unknown parameters on the habitability of three exoplanets located in the inner, outer, and middle of their optimistic HZ. Among the examined parameters, the impact of pressure 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 is discussed with details. To quantify the impact of all these unknown parameters we utilize a statistical interface which provides us with the conditional probability on habitability status of each planet.https://doi.org/10.1515/astro-2020-0021extra-solar planetsastrobiologyradiative transfer
spellingShingle Bahraminasr Majid
Jafarzadeh S. Javad
Montazeri Fatemeh
Poro Atila
Sarabi Soroush
Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
Open Astronomy
extra-solar planets
astrobiology
radiative transfer
title Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
title_full Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
title_fullStr Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
title_full_unstemmed Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
title_short Evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
title_sort evaluating the effect of four unknown parameters included in a latitudinal energy balance model on the habitability of exoplanets
topic extra-solar planets
astrobiology
radiative transfer
url https://doi.org/10.1515/astro-2020-0021
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AT montazerifatemeh evaluatingtheeffectoffourunknownparametersincludedinalatitudinalenergybalancemodelonthehabitabilityofexoplanets
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