Abstract Study Analysis Group 21 (SAG21) of NASA's Exoplanet Exploration Program
Analysis Group was organized to study the effect of stellar contamination on space-based …

The Saturn-mass exoplanet WASP-39b has been the subject of extensive efforts to
determine its atmospheric properties using transmission spectroscopy,,–. However, these …

The chemical compositions of stars encode the history of the universe and are thus
fundamental for advancing our knowledge of astrophysics and cosmology. However …

Giant planets can interact with multiple and chemically diverse environments in
protoplanetary disks while they form and migrate to their final orbits. The way this interaction …

Neptune-sized planets exhibit a wide range of compositions and densities, depending on
factors related to their formation and evolution history, such as the distance from their host …

Relating planet formation to atmospheric composition has been a long-standing goal of the
planetary science community. So far, most modeling studies have focused on predicting the …

Carbon dioxide (CO2) is a key chemical species that is found in a wide range of planetary
atmospheres. In the context of exoplanets, CO2 is an indicator of the metal enrichment (that …

The newfound ability to detect SO 2 in exoplanet atmospheres presents an opportunity to
measure sulfur abundances and so directly test between competing modes of planet …

Context. Short-period giant planets (P≲ 10 days, M p> 0.1 MJ) are frequently found to be
solitary compared to other classes of exo-planets. Small inner companions to giant planets …

One of the main objectives of the European Space Agency's Ariel telescope (launch 2029) is
to understand the formation and evolution processes of a large sample of planets in our …