Results 81 to 90 of about 13,757 (226)

Imaging Cool Giant Planets in Reflected Light: Science Investigations and Synergy with Habitable Planets [PDF]

, 2019
Planned astronomical observatories of the 2020s will be capable of obtaining reflected light photometry and spectroscopy of cool extrasolar giant planets.
Arney, Giada, Bailey, Vanessa, Batalha, Natasha, Beichman, Charles, Benneke, Björn, Blecic, Jasmina, Cahoy, Kerri, Chilcote, Jeffrey, Domagal-Goldman, Shawn, Dressing, Courtney, Fitzgerald, Michael, Fortney, Jonathan, Freedman, Richard, Gelino, Dawn, Gizis, John, Greene, Thomas, Guyon, Olivier, Hammel, Heidi, Hasegawa, Yasuhiro, Jovanovic, Nemanja, Konopacky, Quinn, Kopparapu, Ravi, Lewis, Nikole, Liu, Michael, Lopez, Eric, Lunine, Jonathan, Lupu, Roxana, Macintosh, Bruce, Mandt, Kathleen, Marley, Mark, Marois, Christian, Mawet, Dimitri, Mayorga, Laura, Morley, Caroline, Nielsen, Eric, Roberge, Aki, Serabyn, Eugene, Skemer, Andrew, Stapelfeldt, Karl, Visscher, Channon, Wang, Jason   +40 more
core   +1 more source

Ancient Mars Climate With a Polar Ocean and Ice Sheet Dynamics

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract In this article, we study the conditions required to maintain a stable ocean on Mars 3 Ga using a new suite of simulations. These simulations couple a 3D Global Climate Model with ocean dynamics and ice sheet flow. The model includes the main processes of the atmosphere/hydrosphere/cryosphere to investigate Mars' ancient climate.
Frédéric Schmidt, Michael J. Way, Aurélien Quiquet, Igor Aleinov, Christophe Dumas   +4 more
wiley   +1 more source

Electrical Resistivity of Liquid Fe‐16S‐2Si up to 13 GPa With Implications for the Adiabatic Heat Flux Through the Core of Exoplanet TRAPPIST‐1h

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Thermal convective processes in the liquid cores of terrestrial planetary bodies with the capacity to generate magnetic dynamos may be better characterized by thermal conductivity estimates of core conditions. The composition of the core of asteroid 4 Vesta as determined by geochemical studies of HED meteorites is used as an analog for the ...
E. M. Lenhart, W. Yong, R. A. Secco
wiley   +1 more source

Re‐Analysis of Pioneer Venus Data: Water, Iron Sulfate, and Sulfuric Acid are Major Components in Venus' Aerosols

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract We present a new and transformative composition for Venus' cloud aerosols using previously uncharacterized data acquired by the Pioneer Venus Large Probe, which descended through Venus' atmosphere in 1978. This aerosol composition was extracted by re‐analyzing data acquired by the Large Probe Neutral Mass Spectrometer (LNMS) and re‐evaluating ...
R. Mogul, M. Yu. Zolotov, M. J. Way, S. S. Limaye   +3 more
wiley   +1 more source

VAPORIZATION OF THE EARTH: APPLICATION TO EXOPLANET ATMOSPHERES [PDF]

The Astrophysical Journal, 2012
Currently, there are about 3 dozen known super-Earth (M < 10 MEarth), of which 8 are transiting planets suitable for atmospheric follow-up observations. Some of the planets are exposed to extreme temperatures as they orbit close to their host stars, e.g., CoRot-7b, and all of these planets have equilibrium temperatures significantly hotter than the ...
Bruce Fegley, Katharina Lodders, Laura Schaefer   +2 more
openaire   +3 more sources

Statistical Trends in JWST Transiting Exoplanet Atmospheres

The Astrophysical Journal
Our brains are hardwired for pattern recognition as correlations are useful for predicting and understanding nature. As more exoplanet atmospheres are being characterized with JWST, we are starting to unveil their properties on a population level.
Guangwei Fu, Kevin B. Stevenson, David K. Sing, Sagnick Mukherjee, Luis Welbanks, Daniel Thorngren, Shang-Min Tsai, Peter Gao, Joshua Lothringer, Thomas G. Beatty, Cyril Gapp, Thomas M. Evans-Soma, Romain Allart, Stefan Pelletier, Pa Chia Thao, Andrew W. Mann   +15 more
doaj   +1 more source

Exploring atmospheres of hot mini-Neptunes and extrasolar giant planets orbiting different stars with application to HD 97658b, WASP-12b, CoRoT-2b, XO-1b and HD 189733b

, 2013
We calculated an atmospheric grid for hot mini-Neptune and giant exoplanets, that links astrophysical observable parameters- orbital distance and stellar type- with the chemical atmospheric species expected.
Kaltenegger, Lisa, Miguel, Yamila
core   +1 more source

The “Analogs for VENus' GEologically Recent Surfaces” (AVENGERS) Initiative: Using Terrestrial Analogs to Study Recent Volcano‐Tectonic Activity on Venus and Inform the Characterization of Terrestrial Exoplanets

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Several missions to Venus have recently been selected for launch, opening a new era for the exploration of the planet. A key question these missions seek to address is whether Venus is geologically active today. Detecting active volcanism on Venus would contribute to a better understanding of volcanic and atmospheric processes on Earth.
P. D’Incecco, J. Filiberto, J. B. Garvin, G. N. Arney, S. A. Getty, E. Kohler, L. M. Zelenyi, L. V. Zasova, O. I. Korablev, M. A. Ivanov, J. W. Head, D. A. Gorinov, S. Bhattacharya, S. S. Bhiravarasu, D. Putrevu, I. López, R. Ghail, P. Mason, J. Brossier, C. Monaco, S. Branca, R. A. Corsaro, D. Trang, J. R. Crandall, N. Mari, M. Blackett, G. Komatsu, A. Kosenkova, I. Flynn, S. Aveni, N. Lang, B. J. Thomson, I. Pagano, S. Cassisi, G. Eggers, R. E. Ernst, H. El Bilali, T. Kremic, J. Lustig‐Yaeger, N. Izenberg, L. Bruzzone, M. El Yazidi, E. Ferroni, D. Coero Borga, C. Badia, S. Parisini, G. Fiasconaro, S. Cussini, M. Dolci, E. Brocato, G. Gallardo i Peres, N. Davidova, S. Kane, C. Ostberg, V. Ortega‐Ramos, G. Di Achille   +55 more
wiley   +1 more source

Atmospheric Circulation of Tide-Locked Exoplanets [PDF]

Annual Review of Fluid Mechanics, 2019
Tide-locked planets are planets in which tidal stresses from the host star have spun down the planet's rotation to the point where its length of sidereal day equals its length of year. In a nearly circular orbit, such planets have a permanent dayside and a permanent nightside, leading to extreme heating contrasts.
Pierrehumbert, R, Hammond, M
openaire   +2 more sources

A Comprehensive Framework for Assessing Terrestrial Analogue Field Sites for Ocean Worlds

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Field studies at terrestrial analogue sites represent an important contribution to the science of ocean worlds. The value of the science and technology investigations conducted at field analogue sites depends on the relevance of the analogue environment to the target ocean world.
Jennifer C. Stern, Heather V. Graham, Bradley Burcar, Emily S. Martin, Aaron Noell, Kevin Hand, Jeff S. Bowman, Peter Doran, Virginia Edgcomb, James F. Holden, Alta E. G. Howells, Michael J. Malaska, Brook L. Nunn, Jani Radebaugh, Laura E. Rodriguez, Schuyler Borges, Dina Bower, Samuel Courville, Melisa Diaz, Benjamin Hockman, Julie Huber, Justin Lawrence, Trista Vick‐Majors, Conor A. Nixon, John R. Spear, Amanda V. Steckel, Anezina Solomonidou, Nicholas Schmerr, Britney Schmidt, Matthew O. Schrenk, Lauren Seyler, Amy R. Smith, Catherine C. Walker, Patrick Whelley, Natalie Wolfenbarger, Steven D. Vance   +35 more
wiley   +1 more source