20 citations · 54 across the 7 of their papers we have counts for
5 papers · 1 filter
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…
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…
SOAPv4: A new step toward modeling stellar signatures in exoplanet research
E. Cristo, J. P. Faria, N. C. Santos +6
We present and describe a new version of the spot oscillation and planet code, SOAPv4. Our aim is to demonstrate its capabilities in modeling stellar activity in the context of RV…
HATS-38 b and WASP-139 b join a growing group of hot Neptunes on polar orbits
Juan I. Espinoza-Retamal, Guðmundur Stefánsson, Cristobal Petrovich +9
We constrain the sky-projected obliquities of two low-density hot Neptune planets, HATS-38 b and WASP-139 b, orbiting nearby G and K stars using Rossiter-McLaughlin (RM) observatio…
VaTEST I: Validation of Sub-Saturn Exoplanet TOI-181b in Narrow Orbit from its Host Star
Priyashkumar Mistry, Kamlesh Pathak, Georgios Lekkas +11
We present here a validation of sub-Saturn exoplanet TOI-181b orbiting a K spectral type star TOI-181 (Mass: 0.822 0.04 M, Radius: 0.745 0.02 R, Tem…