From the classical circumstellar habitable zone to the EUV habitable zone, the possible places to look for habitable worlds depend strongly on the interplay of planetary and stellar parameters. While observations are not yet available, theoretical models help inform future observational strategies by constraining which rocky planets could maintain atmospheres, particularly ones able to support life. Models can also help identify and interpret possible biosignatures in environments different from the Solar System. In particular, they are needed to determine whether or not a potential biosignature could be abiotic in origin.
The goal of this session is to establish synergy between the theoretical and observational aspects of the search for habitable exoplanet atmospheres. We welcome contributions related to:
- Which rocky planets can retain observable atmospheres?
- Which factors can influence observations (e.g., clouds, hazes, surface conditions…)?
- Under which combinations of planetary and stellar parameters could worlds be habitable?
- Which biomarkers are observable (with current or upcoming instruments)?
- How can biosignatures be distinguished from false positives?
- What instrumental capabilities are needed to make these observations?