Results 51 to 60 of about 13,757 (226)

Radial velocity eclipse mapping of exoplanets [PDF]

, 2015
Planetary rotation rates and obliquities provide information regarding the history of planet formation, but have not yet been measured for evolved extrasolar planets.
Barnes J. W., Correia A. C. M., Cowan N. B., Cox A. N., de Pater I., Faure G., Felix Sainsbury-Martinez, Fujii Y., Guillot T., Heller R., Hirano T., Hui L., Kataria T., Kawahara H., Kawahara H., Mandel K., Markwardt C. B., Murray C. D, Nikolay Nikolov, Ohta Y., Pallé E., Paz-Chinchón F., Seager S., Winn J. N.   +23 more
core   +2 more sources

Observations of PAHs in the atmospheres of discs and exoplanets

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) play a key role in the chemical and hydrodynamical evolution of the atmospheres of exoplanets and planet-forming discs. If they can survive the planet formation process, PAHs are likely to be involved in pre-biotic chemical reactions eventually leading to more complex molecules such as ...
Ercolano, Barbara, Rab, Christian, Molaverdikhani, Karan, Edwards, Billy, Preibisch, Thomas, Testi, Leonardo, Kamp, Inga, Thi, Wing-Fai   +7 more
openaire   +3 more sources

Clouds and Hazes in Exoplanet Atmospheres [PDF]

, 2013
book chapter to appear in "Comparative Climatology of Terrestrial Planets" (S. Mackwell, M. Bullock, J. Harder, eds.; University of Arizona Press, 2013)
Jeffrey N. Cuzzi, Andrew S. Ackerman, Mark S. Marley, Daniel Kitzmann   +3 more
openaire   +4 more sources

Transiting Exoplanet Studies and Community Targets for JWST's Early Release Science Program [PDF]

, 2016
The James Webb Space Telescope will revolutionize transiting exoplanet atmospheric science due to its capability for continuous, long-duration observations and its larger collecting area, spectral coverage, and spectral resolution compared to existing ...
Agol, Eric, Angerhausen, Daniel, Barstow, Joanna K., Bean, Jacob L., Beichman, Charles, Birkmann, Stephan M., Burrows, Adam, Charbonneau, David, Cowan, Nicolas B., Crouzet, Nicolas, Cubillos, Patricio E., Curry, S. M., Dalba, Paul A., de Wit, Julien, Deming, Drake, Desert, Jean-Michel, Doyon, Rene, Dragomir, Diana, Ehrenreich, David, Fortney, Jonathan J., Fraine, Jonathan, Gibson, Neale P., Gizis, John E., Greene, Thomas P., Harrington, Joseph, Heng, Kevin, Kataria, Tiffany, Kempton, Eliza M. -R., Kilpatrick, Brian M., Knutson, Heather, Kreidberg, Laura, Krick, J. E., Lafreniere, David, Lagage, Pierre-Olivier, Lewis, Nikole K., Line, Michael R., Lopez-Morales, Mercedes, Lothringer, Joshua D., Madhusudhan, Nikku, Mandell, Avi M., Morley, Caroline V., Munoz, Antonio Garcia, Rocchetto, Marco, Schlawin, Everett, Shkolnik, Evgenya L., Shporer, Avi, Sing, David K., Stevenson, Kevin B., Todorov, Kamen O., Tucker, Gregory S., Valenti, Jeff A., Wakeford, Hannah R.   +51 more
core   +2 more sources

The Influence of Galactic Cosmic Rays on Ion-Neutral Hydrocarbon Chemistry in the Upper Atmospheres of Free-Floating Exoplanets [PDF]

, 1989
Cosmic rays may be linked to the formation of volatiles necessary for prebiotic chemistry. We explore the effect of cosmic rays in a hydrogen-dominated atmosphere, as a proof-of-concept that ion-neutral chemistry may be important for modelling hydrogen ...
C. Bilger, Ch. Helling, Miller, P. B. Rimmer, Rimmer, Skilling   +5 more
core   +3 more sources

Atmospheric Circulation of Terrestrial Exoplanets [PDF]

, 2013
The investigation of planets around other stars began with the study of gas giants, but is now extending to the discovery and characterization of super-Earths and terrestrial planets. Motivated by this observational tide, we survey the basic dynamical principles governing the atmospheric circulation of terrestrial exoplanets, and discuss the ...
Showman, Adam P., Wordsworth, Robin, Merlis, Timothy M., Kaspi, Yohai   +3 more
openaire   +4 more sources

Outstanding Challenges of Exoplanet Atmospheric Retrievals [PDF]

Space Science Reviews, 2020
Spectral retrieval has long been a powerful tool for interpreting planetary remote sensing observations. Flexible, parameterised, agnostic models are coupled with inversion algorithms in order to infer atmospheric properties directly from observations, with minimal reliance on physical assumptions. This approach, originally developed for application to
Kevin Heng, Joanna K. Barstow, Joanna K. Barstow   +2 more
openaire   +5 more sources

On the Stability of Super-Earth Atmospheres

, 2012
We investigate the stability of super Earth atmospheres around M stars using a 7-parameter, analytical framework. We construct stability diagrams in the parameter space of exoplanetary radius versus semi-major axis and elucidate the regions in which the ...
Heng, Kevin, Kopparla, Pushkar
core   +1 more source

Characterizing the Atmospheric Dynamics of HD 209458b-like Hot Jupiters Using AI-driven Image Recognition/Categorization

The Astrophysical Journal, 2023
In order to understand the results of recent observations of exoplanets, models have become increasingly complex. Unfortunately, this increases both the computational cost and output size of said models.
F. Sainsbury-Martinez, P. Tremblin, M. Mancip, S. Donfack, E. Honore, M. Bourenane   +5 more
doaj   +1 more source

Spectral Retrieval with JWST Photometric data: a Case Study for HIP 65426 b

The Astronomical Journal, 2023
Half of the JWST high-contrast imaging objects will only have photometric data as of Cycle 2. However, to better understand their atmospheric chemistry that informs formation origin, spectroscopic data are preferred.
Ji Wang
doaj   +1 more source