Results 81 to 90 of about 3,834 (215)

Haze Evolution in Temperate Exoplanet Atmospheres: the Laboratory Perspective

, 2022
International audienceWith thousands of confirmed detections of exoplanets, recent efforts are focusing on characterizing their atmospheres through transmission spectroscopy.
Kempton, Eliza, Mcguiggan, Patricia, Lewis, Nikole, He, Chao, Thompson, Maggie, Dymont, Austin, Moses, Julianne, Yu, Xinting, Zhang, Xi, Horst, Sarah, Valenti, Jeff, Gao, Peter, Moran, Sarah, Powell, Diana, Fortney, Jonathan, Morley, Caroline, Vuitton, Véronique   +16 more
core  

Characterization of Exoplanet Atmospheres: Spectral Retrieval and Chemistry [PDF]

, 2013
The study of exoplanets is rapidly evolving into an important and exciting field of its own. My investigations over the past half-decade have focused on understanding just a small sliver of what they are trying to tell us.
Line, Michael Robert
core   +1 more source

Magnetic Evolution of Super‐Earth Exoplanets With a Basal Magma Ocean

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Habitability of super‐Earths likely requires self‐sustained magnetic fields to shield their atmospheres from stellar forcing. Extreme pressures and temperatures probably produce a long‐lived basal magma ocean (BMO), a potential source for these fields.
Victor Lherm, Miki Nakajima, Eric G. Blackman   +2 more
wiley   +1 more source

Asymmetry and Dynamical Constraints in Two-limbs Retrieval of WASP-39 b Inferring from JWST Data

The Astronomical Journal
Transmission spectroscopy has provided unprecedented insight into the makeup of exoplanet atmospheres. A transmission spectrum contains contributions from a planet’s morning and evening limbs, which can differ in temperature, composition, and aerosol ...
Zixin Chen, Jianghui Ji, Guo Chen, Fei Yan, Xianyu Tan   +4 more
doaj   +1 more source

JWST Discovers the Vertical Structure of Uranus' Ionosphere

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract On 19 January 2025, the James Webb Space Telescope (JWST) program # $\mathrm{\#}$5073 observed Uranus for almost a full rotation with NIRSpec. We present the first ever vertical ionospheric profiles of H3+ ${\mathrm{H}}_{3}^{+}$ temperature, volumetric density and total emission.
Paola I. Tiranti, H. Melin, L. Moore, E. M. Thomas, K. L. Knowles, T. S. Stallard, K. Roberts, J. O’Donoghue   +7 more
wiley   +1 more source

Atmospheric Circulation of Exoplanets

, 2009
We survey the basic principles of atmospheric dynamics relevant to explaining existing and future observations of exoplanets, both gas giant and terrestrial. Given the paucity of data on exoplanet atmospheres, our approach is to emphasize fundamental principles and insights gained from Solar-System studies that are likely to be generalizable to ...
Showman, Adam P., Cho, James Y-K., Menou, Kristen   +2 more
openaire   +2 more sources

Rocky exoplanet characterization and atmospheres

, 2012
A decade of exoplanet search has led to surprising discoveries, from giant planets close to their star, to planets orbiting two stars, all the way to the first extremely hot, rocky worlds with potentially permanent lava on their surfaces due to the star ...
Miguel, Y., Rugheimer, S., Kaltenegger, L.   +2 more
core   +1 more source

High Pressure Formation of the Eight‐Fold Coordinated Post‐Post Spinel MgFe2O4

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract MgFe2O4 was probed to 74(1) GPa and 2,840(130) K as a low‐pressure analog to post‐post spinel Mg2SiO4 predicted in super‐Earths using synchrotron multigrain X‐ray diffraction techniques in the laser‐heated diamond anvil cell. With high‐temperatures above 65 GPa the eight‐fold coordinated δ‐MgFe2O4 (Th3P4‐type) is stable with Mg and Fe ...
Claire C. Zurkowski, Jing Yang, Stella Chariton, Vitali Prakapenka, Yingwei Fei   +4 more
wiley   +1 more source

Confirmation of a Non‐Transiting Planet in the Habitable Zone of the Nearby M Dwarf L 98‐59

Astronomische Nachrichten, Volume 347, Issue 2, February 2026.
ABSTRACT Only 40 exoplanetary systems with five or more planets are currently known. These systems are crucial for our understanding of planet formation and planet‐planet interaction. The M dwarf L 98‐59 has previously been found to show evidence of five planets, three of which are transiting.
Paul I. Schwarz, Stefan Dreizler, René Heller   +2 more
wiley   +1 more source

Atmospheric Escape and the Evolution of Close-In Exoplanets [PDF]

Annual Review of Earth and Planetary Sciences, 2019
Exoplanets with substantial hydrogen/helium atmospheres have been discovered in abundance, many residing extremely close to their parent stars. The extreme irradiation levels that these atmospheres experience cause them to undergo hydrodynamic atmospheric escape.
openaire   +3 more sources