979 citations · 17k across the 143 of their papers we have counts for
18 papers · 2 filters
Water and an escaping helium tail detected in the hazy and methane-depleted atmosphere of HAT-P-18b from JWST NIRISS/SOSS
Guangwei Fu, Néstor Espinoza, David K. Sing +11
JWST is here. The early release observation program (ERO) provides us with the first look at the scientific data and the spectral capabilities. One of the targets from ERO is HAT-P…
Observability of signatures of transport-induced chemistry in clear atmospheres of hot gas giant exoplanets
Maria Zamyatina, Éric Hébrard, Benjamin Drummond +6
Transport-induced quenching, i.e., the homogenisation of chemical abundances by atmospheric advection, is thought to occur in the atmospheres of hot gas giant exoplanets. While som…
Early Release Science of the exoplanet WASP-39b with JWST NIRISS
Adina D. Feinstein, Michael Radica, Luis Welbanks +86
Transmission spectroscopy provides insight into the atmospheric properties and consequently the formation history, physics, and chemistry of transiting exoplanets. However, obtaini…
Early Release Science of the exoplanet WASP-39b with JWST NIRCam
Eva-Maria Ahrer, Kevin B. Stevenson, Megan Mansfield +96
Measuring the metallicity and carbon-to-oxygen (C/O) ratio in exoplanet atmospheres is a fundamental step towards constraining the dominant chemical processes at work and, if in eq…
Signatures of Strong Magnetization and Metal-Poor Atmosphere for a Neptune-Size Exoplanet
Lotfi Ben-Jaffel, Gilda E. Ballester, Antonio García Muñoz +10
The magnetosphere of an exoplanet has yet to be unambiguously detected. Investigations of star-planet interaction and neutral atomic hydrogen absorption during transit to detect ma…
Spectroscopic Time-series Performance of JWST/NIRSpec from Commissioning Observations
Néstor Espinoza, Leonardo Úbeda, Stephan M. Birkmann +22
We report on JWST commissioning observations of the transiting exoplanet HAT-P-14 b, obtained using the Bright Object Time Series (BOTS) mode of the NIRSpec instrument with the G39…
Identification of carbon dioxide in an exoplanet atmosphere
The JWST Transiting Exoplanet Community Early Release Science Team, Eva-Maria Ahrer, Lili Alderson +129
Carbon dioxide (CO2) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO2 is an indicator of the metal enrichment (i.…
Direct discovery of the inner exoplanet in the HD206893 system. Evidence for deuterium burning in a planetary-mass companion
S. Hinkley, S. Lacour, G. -D. Marleau +110
Long term precise radial velocity (RV) monitoring of the nearby star HD206893, as well as anomalies in the system proper motion, have suggested the presence of an additional, inner…
The Hubble PanCET Program: A Featureless Transmission Spectrum for WASP-29b and Evidence of Enhanced Atmospheric Metallicity on WASP-80b
Ian Wong, Yayaati Chachan, Heather A. Knutson +19
We present a uniform analysis of transit observations from the Hubble Space Telescope and Spitzer Space Telescope of two warm gas giants orbiting K-type stars - WASP-29b and WASP-8…
Solar-to-supersolar sodium and oxygen absolute abundances for a "hot Saturn" orbiting a metal-rich star
Nikolay K. Nikolov, David K. Sing, Jessica J. Spake +10
We present new analysis of infrared transmission spectroscopy of the cloud-free hot-Saturn WASP-96b performed with the Hubble and Spitzer Space Telescopes (HST and Spitzer). The WA…
UV Absorption by Silicate Cloud Precursors in Ultra-hot Jupiter WASP-178b
Joshua D. Lothringer, David K. Sing, Zafar Rustamkulov +6
Aerosols have been found to be nearly ubiquitous in substellar atmospheres. The precise temperature at which these aerosols begin to form in exoplanets has yet to be observationall…
Analysis of a JWST NIRSpec Lab Time Series: Characterizing Systematics, Recovering Exoplanet Transit Spectroscopy, and Constraining a Noise Floor
Zafar Rustamkulov, David Sing, Rongrong Liu +1
The James Webb Space Telescope's NIRSpec instrument will unveil the nature of exoplanet atmospheres across the wealth of planet types, from temperate terrestrial worlds to ultrahot…
A Comprehensive Analysis of WASP-17b's Transmission Spectrum from Space-Based Observations
L. Alderson, H. R. Wakeford, R. J. MacDonald +9
Due to its 1770 K equilibrium temperature, WASP-17b, a 1.99 , 0.486 exoplanet, sits at the critical juncture between hot and ultra-hot Jupiters. We…
The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b
Guangwei Fu, David K. Sing, Drake Deming +6
We present the most complete emission spectrum for inflated hot Jupiter HAT-P-41b combining new HST WFC/G141 spectrum from the Hubble Panchromatic Comparative Exoplanet Treasury (P…
Diurnal variations in the stratosphere of the ultrahot giant exoplanet WASP-121b
Thomas Mikal-Evans, David K. Sing, Joanna K. Barstow +9
The temperature profile of a planetary atmosphere is a key diagnostic of radiative and dynamical processes governing the absorption, redistribution, and emission of energy. Observa…
Evidence that the Hot Jupiter WASP-77 A b Formed Beyond Its Parent Protoplanetary Disk's H2O Ice Line
Henrique Reggiani, Kevin C. Schlaufman, Brian F. Healy +2
Idealized protoplanetary disk and giant planet formation models have been interpreted to suggest that a giant planet's atmospheric abundances can be used to infer its formation loc…
Relative abundance constraints from high-resolution optical transmission spectroscopy of WASP-121b, and a fast model-filtering technique for accelerating retrievals
Neale P. Gibson, Stevanus K. Nugroho, Joshua Lothringer +2
High-resolution Doppler-resolved spectroscopy has presented new opportunities for studying the atmospheres of exoplanets. While the 'classical' cross-correlation approach has prove…
Strong HO and CO emission features in the spectrum of KELT-20b driven by stellar UV irradiation
Guangwei Fu, David K. Sing, Joshua D. Lothringer +7
Know thy star, know thy planetary atmosphere. Every exoplanet with atmospheric measurements orbits around a star, and the stellar environment directly affects the planetary atmosph…