Gas-Phase Positive Ion Insights during Laboratory EUV Irradiation of Titan's Relevant Gas Mixtures

Jérémy Bourgalais (1) , Nathalie Carrasco (2, 1) , Pascal Pernot (3)

1 PLANETO - LATMOS
2 IUF - Institut universitaire de France
3 LCPO - Laboratoire de Chimie Physique D'Orsay

In the atmosphere of Saturn's moon Titan, the chemical growth is believed to occur through an efficient chemical coupling between radicals and reac-tive charged species. However, the role of positively charged particles in haze formation chemistry is far from being understood. Here, we present a mass spec-trometry investigation with a relatively low pressure interface to chemically characterize the positive ions formed in the pre-haze formation phase starting from the EUV photolysis of N₂ /CH₄ gas mixtures.

Domaines: Planète et Univers [physics]

Jérémy Bourgalais, Nathalie Carrasco, Pascal Pernot. Gas-Phase Positive Ion Insights during Laboratory EUV Irradiation of Titan's Relevant Gas Mixtures. EPSC-DPS Joint Meeting 2019, Sep 2019, Geneva, Switzerland. pp.EPSC-DPS2019-1337-1. ⟨insu-02196260⟩