Helium in the eroding atmosphere of an exoplanet
Helium is the second-most abundant element in the Universe after hydrogen and is one of
the main constituents of gas-giant planets in our Solar System. Early theoretical models …
the main constituents of gas-giant planets in our Solar System. Early theoretical models …
A new set of atmosphere and evolution models for cool T–Y brown dwarfs and giant exoplanets
We present a new set of solar metallicity atmosphere and evolutionary models for very cool
brown dwarfs and self-luminous giant exoplanets, which we term ATMO 2020. Atmosphere …
brown dwarfs and self-luminous giant exoplanets, which we term ATMO 2020. Atmosphere …
[HTML][HTML] Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
P Mollière, T Stolker, S Lacour, G Otten… - Astronomy & …, 2020 - aanda.org
Context. Clouds are ubiquitous in exoplanet atmospheres and they represent a challenge
for the model interpretation of their spectra. When generating a large number of model …
for the model interpretation of their spectra. When generating a large number of model …
An ultrahot gas-giant exoplanet with a stratosphere
Infrared radiation emitted from a planet contains information about the chemical composition
and vertical temperature profile of its atmosphere,,. If upper layers are cooler than lower …
and vertical temperature profile of its atmosphere,,. If upper layers are cooler than lower …
[HTML][HTML] Diurnal variations in the stratosphere of the ultrahot giant exoplanet WASP-121b
T Mikal-Evans, DK Sing, JK Barstow, T Kataria… - Nature …, 2022 - nature.com
The temperature profile of a planetary atmosphere is a key diagnostic of radiative and
dynamical processes governing the absorption, redistribution and emission of energy …
dynamical processes governing the absorption, redistribution and emission of energy …
Aerosols in exoplanet atmospheres
Observations of exoplanet atmospheres have shown that aerosols, like in the solar system,
are common across a variety of temperatures and planet types. The formation and …
are common across a variety of temperatures and planet types. The formation and …
The complete transmission spectrum of WASP-39b with a precise water constraint
WASP-39b is a hot Saturn-mass exoplanet with a predicted clear atmosphere based on
observations in the optical and infrared. Here, we complete the transmission spectrum of the …
observations in the optical and infrared. Here, we complete the transmission spectrum of the …
Population properties of brown dwarf analogs to exoplanets
We present a kinematic analysis of 152 low surface gravity M7-L8 dwarfs by adding 18 new
parallaxes (including 10 for comparative field objects), 38 new radial velocities, and 19 new …
parallaxes (including 10 for comparative field objects), 38 new radial velocities, and 19 new …
HAT-P-26b: A Neptune-mass exoplanet with a well-constrained heavy element abundance
A correlation between giant-planet mass and atmospheric heavy elemental abundance was
first noted in the past century from observations of planets in our own Solar System and has …
first noted in the past century from observations of planets in our own Solar System and has …
CO or no CO? Narrowing the CO abundance constraint and recovering the H2O detection in the atmosphere of WASP-127 b using SPIRou
A Boucher, D Lafreniére, S Pelletier… - Monthly Notices of …, 2023 - academic.oup.com
Precise measurements of chemical abundances in planetary atmospheres are necessary to
constrain the formation histories of exoplanets. A recent study of WASP-127 b, a close-in …
constrain the formation histories of exoplanets. A recent study of WASP-127 b, a close-in …