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 …
The transit light source effect: false spectral features and incorrect densities for M-dwarf transiting planets
BV Rackham, D Apai, MS Giampapa - The Astrophysical Journal, 2018 - iopscience.iop.org
Transmission spectra are differential measurements that utilize stellar illumination to probe
transiting exoplanet atmospheres. Any spectral difference between the illuminating light …
transiting exoplanet atmospheres. Any spectral difference between the illuminating light …
Atmospheres of brown dwarfs
C Helling, S Casewell - The Astronomy and Astrophysics Review, 2014 - Springer
Brown dwarfs are the coolest class of stellar objects known to date. Our present perception
is that brown dwarfs follow the principles of star formation, and that brown dwarfs share …
is that brown dwarfs follow the principles of star formation, and that brown dwarfs share …
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 …
Constraining the Nature of the PDS 70 Protoplanets with VLTI/GRAVITY∗
We present K-band interferometric observations of the PDS 70 protoplanets along with their
host star using VLTI/GRAVITY. We obtained K-band spectra and 100 μas precision …
host star using VLTI/GRAVITY. We obtained K-band spectra and 100 μas precision …
Low-temperature opacities
JW Ferguson, DR Alexander, F Allard… - The Astrophysical …, 2005 - iopscience.iop.org
Previous computations of low-temperature Rosseland and Planck mean opacities from
Alexander & Ferguson are updated and expanded. The new computations include a more …
Alexander & Ferguson are updated and expanded. The new computations include a more …
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 …
Equilibrium chemistry down to 100 K-Impact of silicates and phyllosilicates on the carbon to oxygen ratio
We have introduced a fast and versatile computer code, GGCHEM, to determine the
chemical composition of gases in thermo-chemical equilibrium down to 100 K, with or …
chemical composition of gases in thermo-chemical equilibrium down to 100 K, with or …
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 …
3d mixing in hot jupiters atmospheres-i. application to the day/night cold trap in hd 209458b
V Parmentier, AP Showman, Y Lian - Astronomy & Astrophysics, 2013 - aanda.org
Context. Hot Jupiters exhibit atmospheric temperatures ranging from hundreds to thousands
of Kelvin. Because of their large day-night temperature differences, condensable species …
of Kelvin. Because of their large day-night temperature differences, condensable species …