Results 11 to 20 of about 646 (121)

A catalogue of exoplanet atmospheric retrieval codes [PDF]

, 2023
Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
MacDonald, Ryan J., Batalha, Natasha E.
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TEMPERATURE STRUCTURE AND ATMOSPHERIC CIRCULATION OF DRY TIDALLY LOCKED ROCKY EXOPLANETS [PDF]

The Astrophysical Journal, 2016
ABSTRACT Next-generation space telescopes will observe the atmospheres of rocky planets orbiting nearby M-dwarfs. Understanding these observations will require well-developed theory in addition to numerical simulations. Here we present theoretical models for the temperature structure and atmospheric circulation of dry, tidally locked ...
Daniel D. B. Koll, Dorian S. Abbot
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The effects of magnetic fields on observational signatures of atmospheric escape in exoplanets: Double tail structures

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACTUsing 3D radiative MHD simulations and Lyman-α transit calculations, we investigate the effect of magnetic fields on the observational signatures of atmospheric escape in exoplanets. Using the same stellar wind, we vary the planet’s dipole field strength (Bp) from 0 to 10G.
S Carolan, A A Vidotto, G Hazra, C Villarreal D’Angelo, D Kubyshkina   +4 more
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Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) [PDF]

Astronomy & Astrophysics, 2020
Ultra-hot Jupiters offer interesting prospects for expanding our theories on dynamical evolution and the properties of extremely irradiated atmospheres. In this context, we present the analysis of new optical spectroscopy for the transiting ultra-hot Jupiter WASP-121b.
Bourrier, V., Ehrenreich, D., Lendl, M., Cretignier, M., Allart, R., Dumusque, X., Cegla, H,. M., Surez, -Mascareo, A., Wyttenbach, A., Hoeijmakers, H.J., Melo, C., Kuntzer, T., Astudillo, -Defru, N., Giles, H., Heng, K., Kitzmann, D., Lavie, B., Lovis, C., Murgas, F., Nascimbeni, V., Pepe, F., Pino, L., Segransan, D., Udry, S.   +23 more
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A survey of exoplanet phase curves with Ariel [PDF]

, 2021
The ESA-Ariel mission will include a tier dedicated to exoplanet phase curves corresponding to ∼10% of the science time. We present here the current observing strategy for studying exoplanet phase curves with Ariel.
Mendonça, JM, Tremblin, P, Mendonça, João M., Taylor, Jake, Mugnai, Lorenzo V., Taylor, J, Charnay, Benjamin, Haswell, Carole, Tinetti, G, Bell, Taylor J., Mugnai, LV, Mendonça, João, Haswell, Carole A., Cowan, Nicolas B., Bell, Taylor, Edwards, B, Tremblin, Pascal, Pascale, E, Cowan, Nicolas, Morello, Giuseppe, Pascale, Enzo, Demangeon, O, Haswell, CA, Zellem, Robert, Edwards, Billy, Zellem, Robert T., Mugnai, Lorenzo, Kreidberg, L, Tinetti, Giovanna, Zellem, RT, Demangeon, Olivier, Morello, G, Cowan, NB, Bell, TJ, Kreidberg, Laura, Charnay, B   +35 more
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Photochemical Hazes Dramatically Alter Temperature Structure and Atmospheric Circulation in 3D Simulations of Hot Jupiters

The Astrophysical Journal, 2023
Photochemical hazes are expected to form in hot Jupiter atmospheres and may explain the strong scattering slopes and muted spectral features observed in the transmission spectra of many hot Jupiters.
Maria E. Steinrueck, Tommi Koskinen, Panayotis Lavvas, Vivien Parmentier, Sebastian Zieba, Xianyu Tan, Xi Zhang, Laura Kreidberg   +7 more
doaj   +1 more source

THE INFLUENCE OF THE EXTREME ULTRAVIOLET SPECTRAL ENERGY DISTRIBUTION ON THE STRUCTURE AND COMPOSITION OF THE UPPER ATMOSPHERE OF EXOPLANETS [PDF]

The Astrophysical Journal, 2016
ABSTRACT By varying the profiles of stellar extreme ultraviolet (EUV) spectral energy distributions (SEDs), we tested the influences of stellar EUV SEDs on the physical and chemical properties of an escaping atmosphere. We apply our model to study four exoplanets: HD 189733b, HD 209458b, GJ 436b, and Kepler-11b.
Guo, J. H., Ben-Jaffel, Lotfi
openaire   +2 more sources

Temperature Structures Associated with Different Components of the Atmospheric Circulation on Tidally Locked Exoplanets

The Astrophysical Journal, 2022
Abstract Observations of time-resolved thermal emission from tidally locked exoplanets can tell us about their atmospheric temperature structure. Telescopes such as JWST and ARIEL will improve the quality and availability of these measurements.
Neil T. Lewis, Mark Hammond
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Aerosols in Exoplanet Atmospheres [PDF]

, 2021
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 distribution of these aerosols are inextricably intertwined with the composition and
Vivien Parmentier, Gao, Peter, Parmentier, Vivien, Peter Gao, Sarah E. Moran, Wakeford, Hannah R., Moran, Sarah E., Hannah R. Wakeford   +7 more
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Towards a Theory for the Atmospheres, Structure, and Evolution of Giant Exoplanets [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractIn this short review, I summarize some of the salient features of the emerging theory of exoplanets in general, and of giant exoplanets in particular. A focus is on the characterization of transiting planets at primary and secondary eclipse, but various other related topics are covered, if only briefly.
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