Modeling the Meteoric Flux and Accretion of Silica (SiO2) and Gases into Exoplanetary Atmospheres using 3-D Monte Carlo Simulations

ORAL

Abstract

Recent studies of the accretion process between exoplanets and their satellites provide new insights to the transfer of volatile elements, such as H2O, CO2, SO2, SiO2, Na, and K. In this study, we present a new method of estimating the abundance and metallicity of SiO2, in the atmospheres of gaseous exoplanets. Using 3-D weighted Monte Carlo simulations (SERPENS), and analytical models (DISHOOM) a model that provides the source rate of SiO2, we can calculate the downward flux of particles and their interaction with the surrounding atmospheric conditions, where we can derive the abundance of SiO2 relative to the background atmospheric composition. This allows us to track the evolution of orbiting neutral particles, and simulate their optical and infrared signatures (PROMETHEUS). Preliminary results of our models show that we may be able to detect approximately 1.6 parts per million (ppm) of SiO2 in the atmospheres of these exoplanetary environments.

Presenters

  • Raghav Chari

    University of Tennessee, Knoxville

Authors

  • Raghav Chari

    University of Tennessee, Knoxville

  • Apurva V Oza

    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, USA

  • Moritz Meyer zu Westram

    Physikalisches Institut, Universität Bern, Bern, Switzerland

  • Pulkit Gupta

    Indian Institute of Technology, Indore, India

  • Athira Unni

    Department of Physics and Astronomy, University of California Irvine, Irvine California