3 papers
astro-ph.EP2026
Where does the simplified Stellar Contamination Model fail in Exoplanet Transmission Spectroscopy?
Viktor Y. D. Sumida, Raissa Estrela, Mark Swain +1
Stellar photospheric heterogeneities (e.g., starspots, faculae) distort the stellar spectrum in transit and imprint wavelength-dependent biases on the planet-to-star radius ratio (…
astro-ph.EP2025
The Atmospheric Composition of Sub-Neptune K2-18 b and Implications for its Formation
Gareb Fernández-RodrÃguez, Giuseppe Morello, Jonathan C. Tan +8
Unlocking the atmospheres of sub-Neptunes is among JWST's major achievements, yet such observations demand complex analyses that strongly affect interpretations. We present an inde…
astro-ph.EP2025
Exploring the atmosphere of GJ 1132 b with CRIRES+
E. Palle, F. Yan, G. Morello +8
With a mass, radius, and mean density similar to Earth's, the rocky planet GJ 1132 b is the first truly small planet for which an atmosphere detection was proposed. If confirmed, u…