275 citations · 1.1k across the 27 of their papers we have counts for
27 papers
Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b II: Phase Resolved Emission Spectroscopy with VLT/CRIRES+ and Gemini-S/IGRINS
Aurora Y. Kesseli, Siddharth Gandhi, Lisa Dang +8
Hot Jupiters are expected to be tidally locked and synchronously rotating due to their short orbital periods. These conditions create large day-night temperature contrasts and are…
Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b. I. HO and CO Detection from Dayside Observations with Gemini-S/IGRINS
Ying Shu, Lisa Dang, Antoine Darveau-Bernier +12
We present ground-based high-resolution spectroscopic pre-eclipse observations of the hot Jupiter CoRoT-2b obtained with the IGRINS spectrograph on Gemini South. Using cross-correl…
A gem system with a lava world and a habitable zone sub-Neptune orbiting TOI-1752
A. Peláez-Torres, F. J. Pozuelos, G. Morello +47
The Transiting Exoplanet Survey Satellite (TESS) has delivered a large number of transiting planet candidates around nearby stars by identifying periodic decreases in stellar brigh…
Atmospheric constraints on GJ 1214 b from CRIRES+ and prospects for characterisation with ANDES
A. Peláez-Torres, A. Sánchez-López, C. Jiang +5
In this study, we aim to constrain the atmospheric composition of GJ 1214 b using all available transits observed with the upgraded CRIRES+ spectrograph at the VLT by searching for…
Towards a Comprehensive Understanding of Planetary Systems through Population-Level, Large-Scale Surveys
Francisco J. Pozuelos, Pedro J. Amado, Jesús Aceituno +13
Over the past three decades, exoplanet research has delivered an extensive census of planets spanning a wide range of masses, sizes, and orbital configurations. Despite this progre…
Tighter constraints on the atmosphere of GJ 436 b from combined high-resolution CARMENES and CRIRES observations
A. Peláez-Torres, A. Sánchez-López, L. Nortmann +23
We aim to study the atmospheric properties of the warm Neptune GJ 436 b by combining a set of five transit events observed with the CARMENES spectrograph with one transit from CRIR…
On the robustness of exoplanet atmospheric detections: insights from extensive simulations
A. Sánchez-López, Ana P. Millán
The classical picture of our Solar System being the archetypal outcome of planet formation has been rendered obsolete by the astonishing diversity of extrasolar-system architecture…
The ESO SupJup Survey IV. Unveiling the carbon isotope ratio of GQ Lup B and its host star
D. González Picos, I. A. G. Snellen, S. de Regt +4
The carbon isotope ratio () is a potential tracer of giant planet and brown dwarf formation. The GQ Lup system, hosting the K7 T Tauri star GQ Lup…
The ESO SupJup Survey III: Confirmation of 13CO in YSES 1 b and Atmospheric Detection of YSES 1 c with CRIRES+
Yapeng Zhang, Darío González Picos, Sam de Regt +14
High-resolution spectroscopic characterization of young super-Jovian planets enables precise constraints on elemental and isotopic abundances of their atmospheres. As part of the E…
Evidence of Water Vapor in the Atmosphere of a Metal-Rich Hot Saturn with High-Resolution Transmission Spectroscopy
Sayyed A. Rafi, Stevanus K. Nugroho, Motohide Tamura +2
Transmission spectroscopy presents one of the most successful approaches for investigating the atmospheres of exoplanets. We analyzed the near-infrared high-resolution transmission…
The ESO SupJup Survey I: Chemical and isotopic characterisation of the late L-dwarf DENIS J0255-4700 with CRIRES
S. de Regt, S. Gandhi, I. A. G. Snellen +9
It has been proposed that the distinct formation and evolution of exoplanets and brown dwarfs may affect the chemical and isotopic content of their atmospheres. Recent work has ind…
A formally motivated retrieval framework applied to the high resolution transmission spectrum of HD 189733 b
Doriann Blain, Alejandro Sánchez-López, Paul Mollière
Ground-based high-resolution spectra provide a powerful tool for characterising exoplanet atmospheres. However, they are greatly hampered by the dominating telluric and stellar lin…
Pictoris b through the eyes of the upgraded CRIRES+
Rico Landman, Tomas Stolker, Ignas Snellen +8
Context: High-resolution spectrographs fed by adaptive optics (AO) provide a unique opportunity to characterize directly imaged exoplanets. Observations with such instruments allow…
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 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…
The CH abundance in Jupiter's upper atmosphere
A. Sánchez-López, M. López-Puertas, M. García-Comas +3
Hydrocarbon species, and in particular CH, play a key role in the stratosphere--thermosphere boundary of Jupiter, which occurs around the -bar pressure level. Previous analy…
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…
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…
Detection of OH in the ultra-hot Jupiter WASP-76b
Rico Landman, Alejandro Sànchez-López, Paul Mollière +3
Ultra-hot Jupiters have dayside temperatures at which most molecules are expected to thermally dissociate. The dissociation of water vapour results in the production of the hydroxy…
CARMENES detection of the CaII infrared triplet and possible evidence of HeI in the atmosphere of WASP-76b
N. Casasayas-Barris, J. Orell-Miquel, M. Stangret +25
Ultra-hot Jupiters are highly irradiated gas giants with equilibrium temperatures typically higher than 2000K. Atmospheric studies of these planets have shown that their transmissi…
Detection of Fe and evidence for TiO in the dayside emission spectrum of WASP-33b
D. Cont, F. Yan, A. Reiners +23
Theoretical studies predict the presence of thermal inversions in the atmosphere of highly irradiated gas giant planets. Recent observations have identified these inversion layers.…
A Spectral Survey of WASP-19b with ESPRESSO
Elyar Sedaghati, Ryan J. MacDonald, Núria Casasayas-Barris +10
High resolution precision spectroscopy provides a multitude of robust techniques for probing exoplanetary atmospheres. We present multiple VLT/ESPRESSO transit observations of the…
Detection of Fe I and Fe II in the atmosphere of MASCARA-2b using a cross-correlation method
M. Stangret, N. Casasayas-Barris, E. Pallé +3
Ultra-hot Jupiters are gas giants planets whose dayside temperature, due to the strong irradiation received from the host star, is greater than 2200 K. These kind of objects are pe…