316 citations · 4.3k across the 70 of their papers we have counts for
66 papers
The obliquity and atmosphere of the hot Jupiter WASP-122b (KELT-14b) with ESPRESSO: An aligned orbit and no sign of atomic or molecular absorption
M. Stangret, E. Palle, E. Esparza-Borges +21
Thanks to their short orbital periods and hot extended atmospheres, hot Jupiters are ideal candidates for atmosphere studies with high-resolution spectroscopy. New stable spectrogr…
TOI-544 b: a potential water-world inside the radius valley in a two-planet system
H. L. M. Osborne, V. Van Eylen, E. Goffo +32
We report on the precise radial velocity follow-up of TOI-544 (HD 290498), a bright K star (V=10.8), which hosts a small transiting planet recently discovered by the Transiting Exo…
Detection of Carbon Monoxide in the Atmosphere of WASP-39b Applying Standard Cross-Correlation Techniques to JWST NIRSpec G395H Data
Emma Esparza-Borges, Mercedes López-Morales, Jéa I. Adams Redai +30
Carbon monoxide was recently reported in the atmosphere of the hot Jupiter WASP-39b using the NIRSpec PRISM transit observation of this planet, collected as part of the JWST Transi…
Vanadium oxide and a sharp onset of cold-trapping on a giant exoplanet
Stefan Pelletier, Björn Benneke, Mohamad Ali-Dib +15
The abundance of refractory elements in giant planets can provide key insights into their formation histories. Due to the Solar System giants' low temperatures, refractory elements…
Retrieval survey of metals in six ultra-hot Jupiters: Trends in chemistry, rain-out, ionisation and atmospheric dynamics
Siddharth Gandhi, Aurora Kesseli, Yapeng Zhang +9
Ground-based high-resolution spectroscopy (HRS) has detected numerous chemical species and atmospheric dynamics in exoplanets, most notably ultra-hot Jupiters (UHJs). However, quan…
Exploring the stellar surface phenomena of WASP-52 and HAT-P-30 with ESPRESSO
H. M. Cegla, N. Roguet-Kern, M. Lendl +21
We analyse spectroscopic and photometric transits of the hot Jupiters WASP-52b and HAT-P30b obtained with ESPRESSO, Eulercam and NGTS for both targets, and additional TESS data for…
Characterisation of the upper atmospheres of HAT-P-32 b, WASP-69 b, GJ 1214 b, and WASP-76 b through their He I triplet absorption
M. Lampón, M. López-Puertas, J. Sanz-Forcada +14
Characterisation of atmospheres undergoing photo-evaporation is key to understanding the formation, evolution, and diversity of planets. However, only a few upper atmospheres that…
Detection of Paschen absorption in the atmosphere of KELT-9 b: A new window into the atmospheres of ultra-hot Jupiters
A. Sánchez-López, L. Lin, I. A. G. Snellen +4
Hydrogen and helium transmission signals trace the upper atmospheres of hot gas-giant exoplanets, where the incoming stellar extreme ultraviolet and X-ray fluxes are deposited. Fur…
Transmission spectroscopy of the ultra-hot Jupiter MASCARA-4 b: Disentangling the hydrostatic and exospheric regimes of ultra-hot Jupiters
Yapeng Zhang, Ignas A. G. Snellen, Aurélien Wyttenbach +11
Ultra-hot Jupiters (UHJs), rendering the hottest planetary atmospheres, offer great opportunities of detailed characterisation with high-resolution spectroscopy. MASCARA-4 b is a r…
A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs: Color validation of TOI-4479b and TOI-2081b
E. Esparza-Borges, H. Parviainen, F. Murgas +45
We report the discovery and validation of two TESS exoplanets orbiting faint M dwarfs: TOI-4479b and TOI-2081b. We have jointly analyzed space (TESS mission) and ground based (MuSC…
Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks
N. Casasayas-Barris, F. Borsa, E. Pallé +32
Atmospheric studies at high spectral resolution have shown the presence of molecules, neutral and ionised metals, and hydrogen in the transmission spectrum of ultra-hot Jupiters, a…
Detection of CO emission lines in the dayside atmospheres of WASP-33b and WASP-189b with GIANO
F. Yan, E. Pallé, A. Reiners +8
Ultra-hot Jupiters (UHJs) are expected to possess temperature inversion layers in their dayside atmospheres. Recent thermal emission observations have discovered several atomic and…
The polar orbit of the warm Neptune GJ436b seen with VLT/ESPRESSO
V. Bourrier, M. R. Zapatero Osorio, R. Allart +24
GJ436b might be the prototype of warm Neptunes that have undergone late migration induced by an outer companion. Precise determination of the orbital architecture of such systems i…
Nodal Precession of WASP-33b for Eleven Years by Doppler Tomographic and Transit Photometric Observations
Noriharu Watanabe, Norio Narita, Enric Palle +14
WASP-33b, a hot Jupiter around a hot star, is a rare system in which nodal precession has been discovered. We updated the model for the nodal precession of WASP-33b by adding new o…
Searching for the origin of the Ehrenreich effect in ultra-hot Jupiters: Evidence for strong C/O gradients in the atmosphere of WASP-76b?
A. Sánchez-López, R. Landman, P. Mollière +3
Extreme temperature contrasts between the day and nightside of ultra-hot Jupiters result in significantly asymmetric atmospheres, with a large expansion occurring over a small rang…
A tentative detection of He I in the atmosphere of GJ 1214b
J. Orell-Miquel, F. Murgas, E. Pallé +27
The $\ion{He}{I}$ 10833\, triplet is a powerful tool for characterising the upper atmosphere of exoplanets and tracing possible mass loss. Here, we analysed one transit of GJ\,1…
Detection of iron emission lines and a temperature inversion on the dayside of the ultra-hot Jupiter KELT-20b
F. Yan, A. Reiners, E. Pallé +25
Ultra-hot Jupiters (UHJs) are gas giants with very high equilibrium temperatures. In recent years, multiple chemical species, including various atoms and ions, have been discovered…
CaRM: Exploring the chromatic Rossiter-McLaughlin effect. The cases of HD 189733b and WASP-127b
E. Cristo, N. C. Santos, O. Demangeon +34
In this paper we introduce CaRM, a semi-automatic code for the retrieval of broadband transmission spectra of transiting planets through the chromatic Rossiter-McLaughlin method. W…
Silicon in the dayside atmospheres of two ultra-hot Jupiters
D. Cont, F. Yan, A. Reiners +22
Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP…
High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b
M. Stangret, N. Casasayas-Barris, E. Pallé +5
Ultra-hot jupiters (UHJs) are giant planets on short orbital periods with high equilibrium temperature (T_eq) values. Their hot, extended atmospheres are perfect laboratories for t…
An Atomic Spectral Survey of WASP-76b: Resolving Chemical Gradients and Asymmetries
Aurora Y. Kesseli, I. A. G. Snellen, N. Casasayas-Barris +2
Ultra-hot Jupiters are gas giants that orbit so close to their host star that they are tidally locked, causing a permanent hot dayside and a cooler nightside. Signatures of their n…
H and He I absorption in HAT-P-32 b observed with CARMENES -- Detection of Roche lobe overflow and mass loss
S. Czesla, M. Lampón, J. Sanz-Forcada +22
We analyze two high-resolution spectral transit time series of the hot Jupiter HAT-P-32 b obtained with the CARMENES spectrograph. Our new XMM-Newton X-ray observations of the syst…
The strange case of Na I in the atmosphere of HD209458 b: Reconciling low- and high-resolution spectroscopic observations G
Giuseppe Morello, Núria Casasayas-Barris, Jaume Orell-Miquel +3
Aims. We aim to investigate the origin of the discrepant results reported in the literature about the presence of Na I in the atmosphere of HD209458 b, based on low- and high-resol…
Is the orbit of the exoplanet WASP-43b really decaying? TESS and MuSCAT2 observations confirm no detection
Z. Garai, T. Pribulla, H. Parviainen +24
Up to now, WASP-12b is the only hot Jupiter confirmed to have a decaying orbit. The case of WASP-43b is still under debate. Recent studies preferred or ruled out the orbital decay…