Results 31 to 40 of about 1,923 (221)

Exoplanet weather and climate regimes with clouds and thermal ionospheres

, 2022
Context. Gaseous exoplanets are the targets that enable us to explore fundamentally our understanding of planetary physics and chemistry. With observational efforts moving from the discovery into the characterisation mode, systematic campaigns that cover
Robin Baeyens, Lewis, D., Woitke, P., Woitke, Peter, Calder, Robb, Baeyens, Robin, Ludmila Carone, Herbort, Oliver, Carone, L., Dominic Samra, Lewis, David, Chubb, K., Hirst, G., Georgina Hirst, Katy L. Chubb, Helling, Christiane, Oliver Herbort, Robb Calder, Peter Woitke, Helling, C., Christiane Helling, Baeyens, R., Samra, D., Samra, Dominic, Hirst, Georgina, Carone, Ludmila, Calder, R., Herbort, O., David Lewis, Chubb, Katy L.   +29 more
core   +1 more source

Phase-curve Pollution of Exoplanet Transmission Spectra [PDF]

, 2021
The occurrence of a planet transiting in front of its host star offers the opportunity to observe the planet's atmosphere filtering starlight. The fraction of occulted stellar flux is roughly proportional to the optically thick area of the planet, the ...
Lagage P. -O., Morello G., Zingales T., Gastaud R., Martin-Lagarde M.   +4 more
core   +1 more source

Vertical structure of an exoplanet’s atmospheric jet stream

Nature
Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how is energy distributed?
Julia V. Seidel, Bibiana Prinoth, Lorenzo Pino, Leonardo A. dos Santos, Hritam Chakraborty, Vivien Parmentier, Elyar Sedaghati, Joost P. Wardenier, Casper Farret Jentink, Maria Rosa Zapatero Osorio, Romain Allart, David Ehrenreich, Monika Lendl, Giulia Roccetti, Yuri Damasceno, Vincent Bourrier, Jorge Lillo-Box, H. Jens Hoeijmakers, Enric Pallé, Nuno Santos, Alejandro Suárez Mascareño, Sergio G. Sousa, Hugo M. Tabernero, Francesco A. Pepe   +23 more
openaire   +3 more sources

Exoplanet atmospheres: A theoretical outlook

, 2010
With over two dozen exoplanet atmospheres observed today, the field of exoplanet atmospheres is solidly established. The highlights of exoplanet atmosphere studies include: detection of molecular spectral features; constraints on atmospheric vertical ...
Sara Seager
core   +1 more source

Atmospheric C/O Ratios of Sub-Neptunes with Magma Oceans: Homemade rather than Inherited

The Astrophysical Journal Letters
Recently, the James Webb Space Telescope has enabled detailed spectroscopic characterization of sub-Neptune atmospheres. With detections of carbon- and oxygen-bearing species such as CO, CO _2 , CH _4 , and H _2 O, a central question is whether the ...
Aaron Werlen, Caroline Dorn, Hilke E. Schlichting, Simon L. Grimm, Edward D. Young   +4 more
doaj   +1 more source

Expected performances of the Characterising Exoplanet Satellite (CHEOPS) II. The CHEOPS simulator [PDF]

, 2020
Funding: European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (project FourAces; grant agreement No 724427).
Collier Cameron, Andrew, Ehrenreich, D., Fortier, A., A. Fortier, C. Broeg, A. E. Simon, Bourrier, V., Fortier, Andrea, Kuntzer, Thibault, Simon, A. E., Broeg, Christopher, W. Benz, Wildi, Francois, Rohlfs, Reiner, Queloz, Didier, Bekkelien, A., A. Bekkelien, F. Wildi, Lendl, Monika, Queloz, D., Kuntzer, T., Benz, Willy, Beck, M., M. Lendl, D. Queloz, R. Rohlfs, Deline, A., D. Futyan, Beck, Mathias, D. Ehrenreich, A. Deline, Futyan, D., Billot, N., Billot, Nicolas, Simon, Attila E., Bourrier, Vincent, Wildi, F., Deline, Adrien, A. Collier Cameron, M. Beck, V. Bourrier, Ehrenreich, David, Collier Cameron, A., Lendl, M., Broeg, C., T. Kuntzer, Bekkelien, Anja, Benz, W., Rohlfs, R., Futyan, David, N. Billot   +50 more
core   +1 more source

Sub-Neptunes Are Drier than They Seem: Rethinking the Origins of Water-rich Worlds

The Astrophysical Journal Letters
Recent claims of biosignature gases in sub-Neptune atmospheres have renewed interest in water-rich sub-Neptunes with surface oceans, often referred to as Hycean planets. These planets are hypothesized to form beyond the snow line, accreting large amounts
Aaron Werlen, Caroline Dorn, Remo Burn, Hilke E. Schlichting, Simon L. Grimm, Edward D. Young   +5 more
doaj   +1 more source

The Effects of Non-ideal Mixing in Planetary Magma Oceans and Atmospheres

The Astrophysical Journal
Sub-Neptunes with hydrogen-rich envelopes are expected to sustain long-lived magma oceans that continuously exchange volatiles with their overlying atmospheres.
Aaron Werlen, Edward D. Young, Hilke E. Schlichting, Caroline Dorn, Anat Shahar   +4 more
doaj   +1 more source

Leveraging Multimodal Large Language Models to Analyse Student Exploration Behaviours in Educational Game Environments

Journal of Computer Assisted Learning, Volume 42, Issue 4, August 2026.
ABSTRACT Background Video data provides rich opportunities to examine student behaviour in game‐based learning environments, capturing not only observable actions but also subtle indicators of cognitive engagement. However, traditional video analysis is labor‐intensive, and current applications of AI to this task are limited by models trained on ...
Yiqiu Zhou, Xiner Liu, Andres Felipe Zambrano, Luc Paquette, Amanda Barany, Jaclyn Ocumpaugh, Ryan S. Baker, Jeff Ginger   +7 more
wiley   +1 more source

A Possible Metal-dominated Atmosphere below the Thick Aerosols of GJ 1214 b Suggested by Its JWST Panchromatic Transmission Spectrum

The Astrophysical Journal Letters
GJ 1214b is the archetype sub-Neptune for which thick aerosols have prevented us from constraining its atmospheric properties for over a decade. In this study, we leverage the panchromatic transmission spectrum of GJ 1214b established by the Hubble Space
Kazumasa Ohno, Everett Schlawin, Taylor J. Bell, Matthew M. Murphy, Thomas G. Beatty, Luis Welbanks, Thomas P. Greene, Jonathan J. Fortney, Vivien Parmentier, Isaac R. Edelman, Nishil Mehta, Marcia J. Rieke   +11 more
doaj   +1 more source