Results 31 to 40 of about 5,178 (157)

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Temporal Variability of Saturn's H2 Dayglow and Northern Aurora Observed by Hisaki and Cassini

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Ultraviolet (UV) emissions from molecular hydrogen in Saturn's atmosphere consist of bright auroral emission over the poles and disk‐wide airglow. The dayside disk emits substantial intensities (dayglow) previously detected by various instruments.
L. S. Clare, S. V. Badman, T. Kimura, F. Tsuchiya, H. Tadokoro, C. Tao, Y. Kasaba, A. Bader, S. W. Farr, J. Kinrade, K. Yoshioka, A. Yamazaki, G. Murakami, I. Yoshikawa, H. Kita   +14 more
wiley   +1 more source

Encoding Cumulation to Learn Perturbative Nonlinear Oscillatory Dynamics

Advanced Science, Volume 13, Issue 25, 4 May 2026.
Weak nonlinearities critically shape the long term behavior of oscillatory systems but are difficult to identify from data. A data‐driven framework is introduced to infer governing equations of weakly nonlinear oscillators from sparse and noisy observations.
Teng Ma, Ting‐Ting Gao, Wei Cui, Attilio Frangi, Gang Yan, Lin Zhao   +5 more
wiley   +1 more source

Resonant Removal of Exomoons During Planetary Migration [PDF]

, 2015
Jupiter and Saturn play host to an impressive array of satellites, making it reasonable to suspect that similar systems of moons might exist around giant extrasolar planets.
Adams, Fred C., Batygin, Konstantin, Spalding, Christopher   +2 more
core   +2 more sources

Beyond Point Masses. III. Detecting Haumea’s Nonspherical Gravitational Field

The Planetary Science Journal
The dwarf planet Haumea is one of the most compelling trans-Neptunian objects to study, hosting two small, dynamically interacting satellites, a family of nearby spectrally unique objects, and a ring system. Haumea itself is extremely oblate due to its 3.
Benjamin C. N. Proudfoot, Darin A. Ragozzine, William Giforos, Will M. Grundy, Mariah MacDonald, William J. Oldroyd   +5 more
doaj   +1 more source

Cryptic Paleomagnetic Complexity in the Ediacaran Egersund Dikes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The Ediacaran Period (∼635–539 Ma) represents a critical interval in Earth's evolution, yet its paleomagnetic record remains complex and contentious. One of the few Ediacaran paleomagnetic results from Baltica considered robust is a pole from the ca.
Yi Xue, Mathew Domeier, Petter Silkoset, Leandro C. Gallo, Justin A. D. Tonti‐Filippini, Harald J. Walderhaug   +5 more
wiley   +1 more source

On the averaging principle for one-frequency systems. An application to satellite motions

, 2009
This paper is related to our previous works [1][2] on the error estimate of the averaging technique, for systems with one fast angular variable. In the cited references, a general method (of mixed analytical and numerical type) has been introduced to ...
C. Morosi, C. Morosi, Carlo Morosi, J.A. Sanders, Livio Pizzocchero, P. Lochak, P.R. Wallace, V.I. Arnold, W.T. Kyner   +8 more
core   +1 more source

The Detectability of Transit Depth Variations due to Exoplanetary Oblateness and Spin Precession [PDF]

, 2010
Knowledge of an exoplanet's oblateness and obliquity would give clues about its formation and internal structure. In principle, a light curve of a transiting planet bears information about the planet's shape, but previous work has shown that the ...
Carter, Joshua A., Winn, Joshua N.
core   +2 more sources

Updates, Examples and Validation of the Global Ionosphere Thermosphere Model

Space Weather, Volume 24, Issue 5, May 2026.
Abstract This study provides an updated description, example simulations, and validation of the Global Ionosphere Thermosphere Model (GITM). The updates to GITM include using an exothermic semi‐implicit chemistry scheme that no longer requires an altitude dependent heating efficiency; an ionospheric wind‐driven dynamo; improved neutral, ion, and ...
A. J. Ridley, C. Wu, A. Bukowski, J. Bell   +3 more
wiley   +1 more source

Chaotic Dynamics of Stellar Spin in Binaries and the Production of Misaligned Hot Jupiters

, 2014
Many exoplanetary systems containing hot Jupiters are observed to have highly misaligned orbital axes relative to the stellar spin axes. Kozai-Lidov oscillations of orbital eccentricity/inclination induced by a binary companion, in conjunction with tidal
Anderson, Kassandra R., Lai, Dong, Storch, Natalia I.   +2 more
core   +1 more source