Results 51 to 60 of about 5,501 (199)

A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b [PDF]

, 2015
Exoplanets orbiting close to their parent stars could lose some fraction of their atmospheres because of the extreme irradiation. Atmospheric mass loss primarily affects low-mass exoplanets, leading to suggest that hot rocky planets might have begun as ...
A Ekenbäck, A Lanotte, A Lecavelier des Etangs, A Lecavelier des Etangs, A Lecavelier des Etangs, A Léger, A Vidal-Madjar, Alain Lecavelier des Etangs, Alfred Vidal-Madjar, B Jackson, B-O Demory, D Ehrenreich, D Ehrenreich, D Ehrenreich, David Ehrenreich, David K. Sing, ED Lopez, F Pepe, F Pont, Guillaume Hébrard, HA Knutson, HA Knutson, I Ribas, J Sanz-Forcada, Jean-Michel Désert, JL Linsky, JL Linsky, JM Chadney, JR Kulow, K France, K Poppenhaeger, L Fossati, M Holmström, NM Batalha, Peter J. Wheatley, Stéphane Udry, TA Davis, TT Koskinen, V Bourrier, V Bourrier, V Bourrier, Vincent Bourrier, WB Hubbard, Xavier Bonfils, Xavier Delfosse   +44 more
core   +4 more sources

A Cross‐Correlation Method to Evaluate Wind Retrieval Accuracy on Mars Using Simulated Microwave Limb Sounder Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract While aspects such as the temperature and composition of the Martian atmosphere are relatively well known thanks to observations from numerous space missions, Martian atmospheric dynamics remain poorly constrained due to the scarcity of direct wind measurements. The use of microwave limb sounders to retrieve winds has been proposed in the past,
S. Jurado‐Fortuna, F. González‐Galindo, D. Shulyak, L. M. Lara   +3 more
wiley   +1 more source

The Impact of the Explicit Representation of Convection on the Climate of a Tidally Locked Planet in Global Stretched-mesh Simulations

The Astrophysical Journal
Convective processes are crucial in shaping exoplanetary atmospheres but are computationally expensive to simulate directly. A novel technique of simulating moist convection on tidally locked exoplanets is to use a global 3D model with a stretched mesh ...
Denis E. Sergeev, Ian A. Boutle, F. Hugo Lambert, Nathan J. Mayne, Thomas Bendall, Krisztian Kohary, Enrico Olivier, Ben Shipway   +7 more
doaj   +1 more source

Molecular-Kinetic Simulations of Escape from the Ex-planet and Exoplanets: Criterion for Transonic Flow [PDF]

, 2013
The equations of gas dynamics are extensively used to describe atmospheric loss from solar system bodies and exoplanets even though the boundary conditions at infinity are not uniquely defined. Using molecular-kinetic simulations that correctly treat the
Erwin, Justin T., Johnson, Robert E., Volkov, Alexey N.   +2 more
core   +1 more source

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source

The Response of Planetary Atmospheres to the Impact of Icy Comets. II. Exo-Earth Analogs

The Astrophysical Journal
The orbital regime of a terrestrial planet plays a significant role in shaping its atmospheric dynamics, climate, and hence potential habitability. The orbit is also likely to play a role in shaping the response of a planetary atmosphere to the influx of
F. Sainsbury-Martinez, C. Walsh
doaj   +1 more source

Types of Gaseous Envelopes of "Hot Jupiter" Exoplanets

, 2013
As a rule, the orbital velocities of "hot Jupiters," i.e., exoplanets with masses comparable to the mass of Jupiter and orbital semi-major axes less than 0.1 AU, are supersonic relative to the stellar wind, resulting in the formation of a bow shock.
Bisikalo, D. V., Ionov, D. E., Kaigorodov, P. V., Shematovich, V. I   +3 more
core   +1 more source

Cation Disorder of Mg2SiO4 ${\text{Mg}}_{\mathbf{2}}{\text{SiO}}_{\mathbf{4}}$ in Super‐Earth Mantles

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Understanding the mineralogy of exoplanets is essential for unraveling their interior structures, dynamics, and evolution. For large super‐Earths, the post‐post spinel Mg2SiO4 ${\text{Mg}}_{2}{\text{SiO}}_{4}$, one of the major mantle phases, may undergo the order‐disorder transition (ODT) at high temperatures.
Donghao Zheng, Yifan Li, Yihang Peng, Rushi Gong, Zi‐Kui Liu, Jie Deng   +5 more
wiley   +1 more source

Bridging the Atmospheric Circulations of Hot and Warm Giant Exoplanets

The Astrophysical Journal
We perform high-resolution atmospheric flow simulations of hot and warm giant exoplanets that are tidally locked. The modeled atmospheres are representative of those on KELT-11 b and WASP-39 b, which possess markedly different equilibrium temperatures ...
J. W. Skinner, S. Wei
doaj   +1 more source

Super-Earths: A New Class of Planetary Bodies

, 2011
Super-Earths, a class of planetary bodies with masses ranging from a few Earth-masses to slightly smaller than Uranus, have recently found a special place in the exoplanetary science.
Armitage P. J., Christensen U. R., Clubb K., Dobrovolskis A. R., Fogg M. J., Ford E.B., Goldreich P., Haghighipour N., Haghighipour N., Hatzes A.P., Heng K., Michael S., Nader Haghighipour, Safronov V. S., Smoluchowski M. V., Sotin C., Stamenkovic V., Stamenkovic V., Steffen J. H., Swift D. C., Tackley P. J., Weidenschilling S. J.   +21 more
core   +1 more source