The impact of Ozone on Earth-like exoplanet climate dynamics: the case of Proxima Centauri b [PDF]
arXivThe emergence of the James Webb Space Telescope and the development of other advanced observatories (e.g., ELTs, LIFE and HWO) marks a pivotal moment in the quest to characterize the atmospheres of Earth-like exoplanets. Motivated by these advancements, we conduct theoretical explorations of exoplanetary atmospheres, focusing on refining our ...
Paolo De Luca +3 more
arxiv +3 more sources
The Influence of Coronal Mass Ejections on the Gas Dynamics of the Atmosphere of a "Hot~Jupiter" Exoplanet [PDF]
Astronomy Reports, Volume 60, Issue 2, pp.183-192, 2016, 2016 The results of three-dimensional numerical simulations of the gas dynamics of the atmosphere of a "hot Jupiter" exoplanet during the passage of a coronal mass ejection (CME) from the central star are presented. These computations assumed the parameters for the stellar wind and the CME to be typical of the solar values.
A. A. Cherenkov, Dmitry Bisikalo
arxiv +6 more sources
Chemical modeling of exoplanet atmospheres [PDF]
, 2014 The past twenty years have revealed the diversity of planets that exist in the Universe. It turned out that most of exoplanets are different from the planets of our Solar System and thus, everything about them needs to be explored. Thanks to current observational technologies, we are able to determine some information about the atmospheric composition,
O. Venot, M. Ag'undez
arxiv +3 more sources
, 2014 More than a thousand exoplanets have been discovered over the last decade. Perhaps more excitingly, probing their atmospheres has become possible. We now have spectra of hot Jupiters like HD 189733b and HD 209458b, of Neptune-like planets like GJ1214b and even smaller planets are within reach.
Vivien Parmentier
openaire +4 more sources
Sporadic Spin-orbit Variations in Compact Multiplanet Systems and Their Influence on Exoplanet Climate [PDF]
Astrophysical Journal Letters, 2023 Climate modeling has shown that tidally influenced terrestrial exoplanets, particularly those orbiting M-dwarfs, have unique atmospheric dynamics and surface conditions that may enhance their likelihood to host viable habitats.
Howard Chen +3 more
semanticscholar +1 more source
Exoplanet atmospheres at high resolution through a modest-size telescope. Fe II in MASCARA-2b and KELT-9b with FIES on the Nordic Optical Telescope [PDF]
Astronomy & Astrophysics, 2022 Ground-based, high-resolution spectrographs are providing us with an unprecedented view of the dynamics and chemistry of the atmospheres of planets outside the Solar System.
A. Bello-Arufe +6 more
semanticscholar +1 more source
High-resolution atmospheric retrievals of WASP-121b transmission spectroscopy with ESPRESSO: Consistent relative abundance constraints across multiple epochs and instruments [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Recent progress in high-resolution transmission spectroscopy has offered new avenues in which to characterise the atmospheres of transiting exoplanets.
C. Maguire +6 more
semanticscholar +1 more source
Dynamics of Colombo’s Top: Generating Exoplanet Obliquities from Planet–Disk Interactions [PDF]
Astrophysical Journal, 2020 Large planetary spin–orbit misalignments (obliquities) may strongly influence atmospheric circulation and tidal heating in a planet. A promising avenue to generate obliquities is via spin–orbit resonances, where the spin and orbital precession ...
Yu-Nung Su, D. Lai
semanticscholar +1 more source
Longitudinally Asymmetric Stratospheric Oscillation on a Tidally Locked Exoplanet [PDF]
Astrophysical Journal, 2021 Using a three-dimensional general circulation model, we show that the atmospheric dynamics on a tidally locked Earth-like exoplanet, simulated with the planetary and orbital parameters of Proxima Centauri b, support a longitudinally asymmetric ...
Maure J. Cohen +6 more
semanticscholar +1 more source
A survey of exoplanet phase curves with Ariel [PDF]
Experimental astronomy (Print), 2021 The ESA-Ariel mission will include a tier dedicated to exoplanet phase curves corresponding to ∼10%\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs}
B. Charnay +14 more
semanticscholar +1 more source