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astro-ph.EP2026
Effect of stellar spot-only spectral lines in high-resolution transit spectroscopy
W. Dethier, E. Cristo, O. D. S. Demangeon +3
We investigate how a representative single spectral line present only in a stellar spot can introduce distortions in high-resolution planetary absorption spectra. Specifically, we…
astro-ph.EP2026
Impact of stellar spots on the high-resolution transmission spectra of a giant planet around a Sun-like star
Jennifer P. Lucero, O. D. S. Demangeon, E. Cristo +2
Transmission spectroscopy has enabled the analysis of exoplanet atmospheres. However, a major challenge is the noise from host stars, caused by stellar activity such as dark spots…