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
Evaluating Habitability and Biosignature Detection on TOI-700 d: The Role of UV Environment and Atmospheric Pressure
Viktor Y. D. Sumida, Raissa Estrela, Adriana Valio
M dwarfs have long been prime targets in the search for habitable exoplanets, owing to their abundance in the galaxy and the relative ease of detecting Earth-sized worlds within th…
astro-ph.SR2025
Starspot temperature of CoRoT-2 from multiwavelength observations with SPARC4
Adriana Valio, Eder Martioli, Andre O. Kovacs +5
Measuring starspot temperatures is crucial for understanding stellar magnetic activity, as it affects stellar brightness variations, influences exoplanet transit measurements, and…