Influence of different parameters on the chemical composition of warm neptunes

Olivia Venot; Marcelino Agúndez; Franck Selsis; Marcell Tessenyi; Leen Decin

Influence of different parameters on the chemical composition of warm neptunes

Earth and Planetary Astrophysics 2014-12-05 v2

Authors: Olivia Venot , Marcelino Agúndez , Franck Selsis , Marcell Tessenyi , Leen Decin

Abstract

We developed a 1D photo-thermochemical model to study the atmosphere of warm exoplanets. The chemical scheme used in this model is completely new in planetology and has been constructed in collaboration with specialists of combustion. It has been validated as a whole through experiments on a large range of temperature (300 - 2500 K) and pressure (1 mbar - 100 bar), allowing to study a wide variety of exoplanets. We have used this chemical model to study the atmosphere of two warm Neptunes, GJ3470b and GJ436b, and the influence of different parameters (vertical mixing, metallicity, temperature, . . . ) on their chemical composition. We present here the results obtained in these studies.

Keywords

warm Neptunes photo-thermochemical model exoplanet atmosphere chemical composition vertical mixing metallicity GJ3470b GJ436b

Cite

@article{arxiv.1412.0930,
  title  = {Influence of different parameters on the chemical composition of warm neptunes},
  author = {Olivia Venot and Marcelino Agúndez and Franck Selsis and Marcell Tessenyi and Leen Decin},
  journal= {arXiv preprint arXiv:1412.0930},
  year   = {2014}
}

Comments

5 pages, 2 figure, 1 table, SF2A Proceedings, accepted

Influence of different parameters on the chemical composition of warm neptunes

Abstract

Keywords

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