84 citations · 351 across the 7 of their papers we have counts for
11 papers
The atmosphere of HD 209458b seen with ESPRESSO. No detectable planetary absorptions at high resolution
N. Casasayas-Barris, E. Palle, M. Stangret +37
We observed two transits of the iconic gas giant HD 209458b between 380 and 780 nm, using the high-resolution ESPRESSO spectrograph. The derived planetary transmission spectrum exh…
TOI-519 b: a short-period substellar object around an M dwarf validated using multicolour photometry and phase curve analysis
H. Parviainen, E. Palle, M. R. Zapatero-Osorio +43
Context: We report the discovery of TOI-519 b (TIC 218795833), a transiting substellar object (R = 1.07 RJup) orbiting a faint M dwarf (V = 17.35) on a 1.26 d orbit. Brown dwarfs a…
Detection of the hydrogen Balmer lines in the ultra-hot Jupiter WASP-33b
F. Yan, A. Wyttenbach, N. Casasayas-Barris +24
Ultra-hot Jupiters (UHJs) are highly irradiated giant exoplanets with extremely high day-side temperatures, which lead to thermal dissociation of most of the molecular species. It…
An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b
G. Chen, E. Palle, H. Parviainen +25
We present the optical transmission spectrum of the hot Jupiter WASP-104b based on one transit observed by the blue and red channels of the DBSP spectrograph at the Palomar 200-inc…
A temperature inversion with atomic iron in the ultra-hot dayside atmosphere of WASP-189b
F. Yan, E. Pallé, A. Reiners +6
Temperature inversion layers are predicted to be present in ultra-hot giant planet atmospheres. Although such inversion layers have recently been observed in several ultra-hot Jupi…
A He I upper atmosphere around the warm Neptune GJ 3470b
E. Palle, L. Nortmann, N. Casasayas-Barris +24
High resolution transit spectroscopy has proven to be a reliable technique for the characterization of the chemical composition of exoplanet atmospheres. Taking advantage of the br…