9 papers
Detection of CO, CO, and HO in the atmosphere of the warm sub-Saturn HAT-P-12b
N. Crouzet, B. Edwards, T. Konings +29
The chemical composition of warm gas giant exoplanet atmospheres (with Teq < 1000 K) is not well known due to the lack of observational constraints. HAT-P-12 b is a warm, sub-Satur…
SO2, silicate clouds, but no CH4 detected in a warm Neptune
Achrene Dyrek, Michiel Min, Leen Decin +44
WASP-107b is a warm (~740 K) transiting planet with a Neptune-like mass of ~30.5 Earth masses and Jupiter-like radius of ~0.94 Jupiter radius, whose extended atmosphere is eroding.…
Reliability of 1D radiative-convective photochemical-equilibrium retrievals on transit spectra of WASP-107b
Thomas Konings, Linus Heinke, Robin Baeyens +3
Observations of WASP-107b suggest a metal-rich and carbon-deprived atmosphere with an extremely hot interior based on detections of SO, HO, CO, CO, NH, and CH.…
Evidence for SiO cloud nucleation in the rogue planet PSO J318
P. Mollière, H. Kühnle, E. C. Matthews +25
Silicate clouds are known to significantly impact the spectra of late L-type brown dwarfs, with observable absorption features at ~ 10 micron. JWST has reopened our window to the m…
A numerically stable comoving frame solver for line radiative transfer
Thomas Ceulemans, Frederik De Ceuster, Leen Decin
Radiative transfer is essential in astronomy, both for interpreting observations and simulating various astrophysical phenomena. However, self-consistent line radiative transfer is…
MIRI-JWST mid-infrared direct imaging of the debris disk of HD106906
Daniel Rouan, Anthony Boccaletti, Clément Perrot +20
We report MIRI-JWST coronagraphic observations at 11.3 and 15.5 mic of the debris disk around the young star HD 106906. The observations were made to characterize the structure, te…