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Empirical formulae of temperature and luminosity as functions of mass for calculating the habitable zone
Author(s) -
Dobos V.,
Orgoványi J.,
Nagy I.
Publication year - 2013
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201211981
Subject(s) - circumstellar habitable zone , exoplanet , physics , luminosity , effective temperature , stars , astrophysics , astronomy , galaxy
The location of the habitable zone can be calculated from the stellar mass by theoretical expressions. In this work we compare different effective temperature and luminosity relations from which the habitable zone is calculated. It was found that for the effective temperature the theoretical models give acceptable results but for the luminosity the measured values are underestimated. Because of the experienced deviation we propose new empirical equations for F, G, K, M main sequence stars (0.3–1.4 M ⊙ ) hosting known exoplanets. Using these equations the boundaries of the habitable zone fit well to the ones which were calculated from measured stellar parameters. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)