Results 61 to 70 of about 6,508 (165)

Importance of Sample Selection in Exoplanet-atmosphere Population Studies

The Astronomical Journal, 2022
Understanding planet formation requires robust population studies, which are designed to reveal trends in planet properties. In this work we aim to determine if and how different methods for selecting populations of exoplanets for atmospheric ...
Natasha E. Batalha, Angie Wolfgang, Johanna Teske, Munazza K. Alam, Lili Alderson, Natalie M. Batalha, Mercedes López-Morales, Hannah R. Wakeford   +7 more
doaj   +1 more source

Evolution of Terrestrial Planetary Bodies and Implications for Habitability

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract The terrestrial planetary bodies of our solar system—Mercury, Venus, Earth, and Mars—share a common origin through nebular accretion and early magma ocean differentiation, yet they diverged significantly in geological evolution, tectonic regimes, and habitability.
Peter A. Cawood, Eva E. Stüeken, Priyadarshi Chowdhury, Chris J. Hawkesworth, Jacob A. Mulder   +4 more
wiley   +1 more source

Influence of stellar variability on the determination of the radius during a transit of an exoplanet

EPJ Web of Conferences, 2011
Stellar variability can affect the estimate of an exoplanet radius measured during a transit. We developed a transit light curve model which includes stellar spots.
Désert J.-M., Lecavelier des Etangs A., Parmentier V., Sing D.   +3 more
doaj   +1 more source

Neuromorphic Computing with Memcapacitors: Advancements, Challenges, and Future Directions

Advanced Electronic Materials, Volume 11, Issue 18, November 4, 2025.
Neuromorphic computing reduces energy costs by integrating memory and processing in event‐driven architectures, achieving energy usage as low as 10–30 pJ per operation for memcapacitor‐based synapses. Memcapacitors are reviewed as strong contenders for neuromorphic computing, enhancing AI acceleration through charge‐based computations, high resistance,
Nada AbuHamra, Muhammad Umair Khan, Eman Hassan, Mahmoud Al Qutayri, Baker Mohammad   +4 more
wiley   +1 more source

Hot Spot Offset Variability from Magnetohydrodynamical Thermoresistive Instability in Hot Jupiters

The Astrophysical Journal
Hot Jupiter (HJ) atmospheres are possibly subject to a thermoresistive instability (TRI). Such an instability may develop as the ohmic heating increases the electrical conductivity in a positive feedback loop, which ultimately leads to a runaway of the ...
Raphaël Hardy, Paul Charbonneau, Andrew Cumming   +2 more
doaj   +1 more source

Mercury's Altered Magnetosphere During a Sub‐Alfvénic ICME Event: MESSENGER Observations and Inferred Asymmetric Alfvén Wing Formation From Global MHD Simulations

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract We present observations of a rare configuration of Mercury's magnetosphere in response to sub‐Alfvénic upstream conditions, driven by an interplanetary coronal mass ejection (ICME) that impacted the planet on 1 May 2013. Using data from the Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) spacecraft, supported by a ...
Charles F. Bowers, Caitríona M. Jackman, Xianzhe Jia, Lina Z. Hadid, Weijie Sun, Laura A. Hayes, Ryan M. Dewey, Brandon Burkholder, Daragh M. Hollman, Sebastian Cervantes, Hans L. F. Huybrighs, Matthew J. Rutala   +11 more
wiley   +1 more source

Radiative Flux from a High-resolution Atmospheric Dynamics Simulation of a Hot Jupiter for JWST and Ariel

The Astrophysical Journal
We present medium-wave (∼0.5–13 μ m) radiative flux distributions and spectra derived from high-resolution atmospheric dynamics simulations of an exoplanet, WASP-121 b. This planet serves to illustrate several important features.
Jagat Kafle, James Y-K. Cho, Quentin Changeat   +2 more
doaj   +1 more source

Characterizing the Habitable Zones of Exoplanetary Systems with a Large Ultraviolet/Visible/Near-IR Space Observatory [PDF]

, 2015
Understanding the surface and atmospheric conditions of Earth-size, rocky planets in the habitable zones (HZs) of low-mass stars is currently one of the greatest astronomical endeavors.
Ayres, Thomas, Barman, Travis, Brown, Alexander, Davenport, James, Desert, Jean-Michel, Domagal-Goldman, Shawn, Fleming, Brian, Fontenla, Juan, Fossati, Luca, France, Kevin, Froning, Cynthia, Hallinan, Gregg, Hawley, Suzanne, Hu, Renyu, Kaltenegger, Lisa, Kasting, James, Kowlaski, Adam, Linsky, Jeffrey, Loyd, Parke, Mauas, Pablo, Miguel, Yamila, Osten, Rachel, Redfield, Seth, Roberge, Aki, Rugheimer, Sarah, Schneider, Christian, Segura, Antigona, Shkolnik, Evgenya, Stocke, John, Tian, Feng, Tumlinson, Jason, Vieytes, Mariela, Walkowicz, Lucianne, Wood, Brian, Youngblood, Allison   +34 more
core   +1 more source

Survey and Modeling of Windblown Ejecta Deposits on Venus

AGU Advances, Volume 6, Issue 5, October 2025.
Abstract Venus' thick atmosphere rotates in the same direction as the solid body, but ∼60 times faster. This atmospheric superrotation has produced dozens of windblown ejecta deposits (“parabolas”) on the surface of Venus. The formation and modification of parabolas is an interplay between impacts, aeolian modification, and atmospheric dynamics.
T. J. Austin, J. G. O’Rourke, N. Izenberg, E. A. Silber   +3 more
wiley   +1 more source

Evidence for a Natural Limit to Electron Space Radiation: An Application of Benford's Law

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Recent research has highlighted observational evidence for a natural limit to the severity of energetic electron differential fluxes in the Van Allen radiation belts. Here, we analyze the occurrence distributions of electron differential fluxes from the entire Van Allen Probes mission (2012–2019) to further investigate the energy dependence of
L. Olifer, I. R. Mann
wiley   +1 more source