Results 61 to 70 of about 828 (196)

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

Mapping out the time-evolution of exoplanet processes [PDF]

, 2019
There are many competing theories and models describing the formation, migration and evolution of exoplanet systems. As both the precision with which we can characterize exoplanets and their host stars, and the number of systems for which we can make ...
Christiansen, Jessie, Ciardi, David R., Marley, Mark S., Beichman, Charles A., Huber, Daniel   +4 more
core  

Lithium abundances in exoplanet-host stars: modelling [PDF]

, 2008
International audienceAims. Exoplanet host stars (EHS) are known to present superficial chemical abundances different from those of stars without any detected planet (NEHS). EHS are, on average, overmetallic compared to the Sun.
Vauclair, S., Richard, O., N. C. Santos, Castro, M., Santos, N. C., S. Vauclair, O. Richard, M. Castro   +7 more
core   +1 more source

Exploring Warm Jupiter Migration Pathways with Eccentricities. II. Correlations with Host Star Properties and Orbital Separation

The Astronomical Journal
Warm Jupiters with orbital periods of ≈10–365 days represent a population of giant planets located well within the water ice line but beyond the region of tidal influence of their host star relevant for high-eccentricity tidal migration.
Marvin Morgan, Brendan P. Bowler, Quang H. Tran   +2 more
doaj   +1 more source

A High-Eccentricity Warm Jupiter Orbiting TOI-4127

The Astronomical Journal, 2023
We report the discovery of TOI-4127 b, which is a transiting, Jupiter-sized exoplanet on a long-period ( $P={56.39879}_{-0.00010}^{+0.00010}$ days) and a high-eccentricity orbit around a late F-type dwarf star.
Arvind F. Gupta, Jonathan M. Jackson, Guillaume Hébrard, Andrea S. J. Lin, Keivan G. Stassun, Jiayin Dong, Steven Villanueva Jr., Diana Dragomir, Suvrath Mahadevan, Jason T. Wright, Jose M. Almenara, Cullen H. Blake, Isabelle Boisse, Pía Cortés-Zuleta, Paul A. Dalba, Rodrigo F. Díaz, Eric B. Ford, Thierry Forveille, Robert Gagliano, Samuel Halverson, Neda Heidari, Shubham Kanodia, Flavien Kiefer, David w. Latham, Michael W. McElwain, Ismael Mireles, Claire Moutou, Joshua Pepper, George R. Ricker, Paul Robertson, Arpita Roy, Martin Schlecker, Christian Schwab, S. Seager, Avi Shporer, Guđmundur Stefánsson, Ryan C. Terrien, Eric B. Ting, Joshua N. Winn, Allison Youngblood   +39 more
doaj   +1 more source

On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]

, 2015
PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core  

The exoplanet revolution: towards habitable worlds [PDF]

, 2023
In the nearly 30 years since the discovery of the first exoplanets, planet detection has continued to accelerate, driven in large part by the space-based transit missions Kepler/K2 and TESS; there are now more than 5000 confirmed exoplanets.
Smith, Alexis M S
core  

Signs of Similar Stellar Obliquity Distributions for Hot and Warm Jupiters Orbiting Cool Stars

The Astronomical Journal
Transiting giant planets provide a natural opportunity to examine stellar obliquities, which offer clues about the origin and dynamical histories of close-in planets.
Marvin Morgan, Brendan P. Bowler, Quang H. Tran, Erik Petigura, Vighnesh Nagpal, Sarah Blunt   +5 more
doaj   +1 more source

A Microphysics Model of Multicomponent Venus' Clouds With a High‐Accuracy Condensation Scheme

Earth and Space Science, Volume 12, Issue 6, June 2025.
Abstract Accurate modeling of the Venusian cloud structure remains challenging due to its complex microphysical properties. Condensation primarily determines the cloud particle size distribution within the various cloud layers. However, existing Venus microphysics models mainly use a full‐stationary bin scheme, which may be prone to numerical diffusion
H. Karyu, T. Kuroda, A. Mahieux, S. Viscardy, A. Määttänen, N. Terada, S. Robert, A. C. Vandaele, M. Crucifix   +8 more
wiley   +1 more source

Exoplanet Demographics Beyond Kepler: Giant Planets with Radial Velocity & Young Transiting Planets with TESS [PDF]

, 2023
Large scale exoplanet detection and characterization surveys have made it possible for us to study exoplanets from a demographic perspective. Of specific importance is the \kepler mission, which has provided detailed exoplanet population statistics for a
Fernandes, Rachel Belinda
core