17–18 Apr 2023 In-Person Event
Berlin
Europe/Berlin timezone

The transition between super-Earths and sub-Neptunes: Interior and atmosphere modelling of the low-mass planet population

18 Apr 2023, 11:05
15m
Rotunde (Berlin)

Rotunde

Berlin

DLR, Institut für Planetenforschung Rutherfordstr. 2 12489 Berlin

Speaker

Lorena Acuna Aguirre (Max Planck Institute for Astronomy)

Description

Low-mass exoplanets are showing a diversity in their densities and irradiation conditions, ranging from highly irradiated planets to temperate worlds. To estimate their composition, we have developed an interior structure model that includes self-consistently an atmosphere in radiative-convective equilibrium for water and CO$_{2}$ envelopes. We use the model within a Bayesian adaptive Markov Chain Monte Carlo (MCMC) to estimate the uncertainties of the core and water mass fraction for a sample of multiplanetary systems, which gives us clues about their possible formation site in the protoplanetary disk and their formation mechanisms, as well as assess their observability with JWST.

Primary author

Lorena Acuna Aguirre (Max Planck Institute for Astronomy)

Presentation materials

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