Results 91 to 100 of about 3,962,336 (149)

Flow Regimes in Hot Jupiter Atmospheres: Insights from Anelastic Models

The Astrophysical Journal
Hot Jupiters are Jupiter-sized exoplanets with close-in orbits, characterized by extreme day–night temperature contrasts due to synchronous rotation.
Wieland Dietrich, Johannes Wicht
doaj   +1 more source

Earth-like Exoplanets in Spin–Orbit Resonances: Climate Dynamics, 3D Atmospheric Chemistry, and Observational Signatures

The Planetary Science Journal
Abstract Terrestrial exoplanets around M- and K-type stars are important targets for atmospheric characterization. Such planets are likely tidally locked with the order of spin–orbit resonances (SORs) depending on eccentricity. We explore the impact of SORs on 3D atmospheric dynamics and chemistry, employing a 3D coupled climate ...
Braam, Marrick, Palmer, Paul I., Decin, Leen, Mayne, Nathan J., Manners, James, Rugheimer, Sarah   +5 more
openaire   +4 more sources

exoplanet-dev/exoplanet: exoplanet v0.4.1

, 2020
0.4.1 (2020-11-15) ++++++++++++++++++ Fixes pickling error when sampling in parallel ...
emilygilbert, Dan Foreman-Mackey, Eric Agol, Tom Barclay, Ian Czekala, Luke Bouma, Rodrigo Luger, Adrian Price-Whelan, Timothy D Brandt   +8 more
core   +1 more source

Bayesian Deep Learning for Exoplanet Atmospheric Retrieval [PDF]

, 2018
Over the past decade, the study of extrasolar planets has evolved rapidly from plain detection and identification to comprehensive categorization and characterization of exoplanet systems and their atmospheres. Atmospheric retrieval, the inverse modeling
O'Beirne, Molly D., Mascaro, Massimo, Arney, Giada N., Baydin, Atilim Gunes, Angerhausen, Daniel, Domagal-Goldman, Shawn D., Gal, Yarin, Zorzan, Simone, Soboczenski, Frank, Himes, Michael D., Cobb, Adam D.   +10 more
core   +3 more sources

Hydrogen Airglow from an Escaping Ultrahot Jupiter Atmosphere

The Astrophysical Journal Letters
Intense high-energy irradiation of close-in gaseous exoplanets drives the rapid escape of their atmospheres, fundamentally shaping planetary demographics. While atmospheric loss is routinely observed via transit absorption in atomic hydrogen, helium, and
Yapeng Zhang, Chenliang Huang, Aaron Householder, James E. Owen, Fei Dai, Aurora Y. Kesseli, Andrew W. Howard, Julie Inglis, Howard Isaacson, Heather A. Knutson, Dimitri Mawet, Nicole Wallack, Jerry W. Xuan, Michael Zhang, Theron W. Carmichael, Daniel Huber, Rena A. Lee, Nicholas Saunders, Lauren M. Weiss, Jingwen Zhang   +19 more
doaj   +1 more source

The Spin Zone: Synchronously and Asynchronously Rotating Land Planets Have Spectral Differences in Transmission

The Planetary Science Journal
New observational facilities are beginning to enable insights into the three-dimensional (3D) nature of exoplanets. Transmission spectroscopy is the most widely used method for characterizing transiting temperate exoplanet atmospheres, but because it ...
Nicholas Scarsdale, C. E. Harman, Thomas J. Fauchez   +2 more
doaj   +1 more source

Probing the atmospheric dynamics, clouds and chemistry of brown dwarfs and young giant exoplanets

Brown dwarfs and young giant exoplanet are subject to variability and colour changes as the L/T transition. Clouds are expected to be the main driver of the L/T. Using a three-dimensional Global Climate Model, we show that clouds play a major role in shaping the atmospheric properties of brown dwarfs, in agreement with the observed variability and L/T ...
Maio, Francesco, Bonnefoy, M., Chauvin, G., Lacour, S., Nowak, M., Charnay, B., Tremblin, P., Homeier, D., Morley, C., Fortney, J., Denis, A., Petrus, S., Palma-Bifani, P.   +12 more
openaire   +2 more sources

Ab Initio Quantum Dynamics as a Scalable Solution to the Exoplanet Opacity Challenge: A Case Study of CO₂ in a Hydrogen Atmosphere

The Astrophysical Journal
Abstract Light–matter interactions lie at the heart of our exploration of exoplanetary atmospheres. Interpreting data obtained by remote sensing is enabled by meticulous, time- and resource-consuming work aiming at deepening our understanding of such interactions (i.e., opacity models). Recently, P. Niraula et al.
Laurent Wiesenfeld, Prajwal Niraula, Julien de Wit, Nejmeddine Jaïdane, Iouli E. Gordon, Robert J. Hargreaves   +5 more
openaire   +3 more sources

Dynamically coupled kinetic chemistry in brown dwarf atmospheres – II. Cloud and chemistry connections in directly imaged sub-Jupiter exoplanets

Monthly Notices of the Royal Astronomical Society
ABSTRACT With JWST slated to gain high-fidelity time-dependent data on brown dwarf atmospheres, it is highly anticipated to do the same for directly imaged, sub-Jupiter exoplanets. With this new capability, the need for a full three-dimensional (3D) understanding to explain spectral features and their time dependence is becoming a vital ...
Elspeth K H Lee, Xianyu Tan, Shang-Min Tsai   +2 more
openaire   +2 more sources

Coupling the Secular Dynamical and Atmospheric Evolution of Close-in Exoplanets

This thesis plunges into the enigmatic formation of the hot Neptune desert, a sparsely populated region of exoplanetary demographics, by exploring the processes that shape close-in exoplanets. Central to this inquiry is the interplay between atmospheric evaporation and orbital migration, two pivotal mechanisms governing the evolution of planetary ...
openaire   +2 more sources