Results 21 to 30 of about 874 (94)

Quasilinear Wave‐Particle Analysis in the Source Region of Jovian Kilometric Radio Emission

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Jovian broadband kilometric emission (bKOM) is observed by the Juno spacecraft within a source region in the northern hemisphere near the equatorward edge of the auroral oval. A well‐developed upward loss cone is the free‐energy source of the bKOM.
P. H. Yoon, J. D. Menietti, F. Allegrini, W. S. Kurth, J. B. Faden, G. B. Hospodarsky, J. E. P. Connerney, S. J. Bolton   +7 more
wiley   +1 more source

Modeling the Crustal Magnetic Field of Mars With Physics‐Informed Neural Networks

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Satellites orbiting Mars have measured crustal magnetic fields up to two orders of magnitude stronger than those on Earth. Although Mars currently lacks an active global magnetic field, this magnetization preserves a valuable record of the planet's early dynamo activity and crustal evolution.
T. Delcourt, A. Mittelholz
wiley   +1 more source

Dating a Medieval Tsunami With Uranium‐Series Techniques on Caribbean Corals

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Uranium‐series dates from coral boulders constrain the timing of a medieval tsunami from the Puerto Rico Trench. Previously reported evidence for this tsunami includes hundreds of coral boulders that came to rest hundreds of meters inland on Anegada, British Virgin Islands.
K. Halimeda Kilbourne, Jennifer Weil‐Accardo, Nathalie Feuillet, Pierre Deschamps, Yuan‐yuan Xu, Chuan‐Chou Shen, Hailong Sun, Robert B. Halley, Brian F. Atwater   +8 more
wiley   +1 more source

Modeling heterogeneity in large‐scale bioreactors using the method of moments with a truncated normal distribution

AIChE Journal, Volume 71, Issue 10, October 2025.
ABSTRACT Large‐scale bioreactors in industrial bioprocesses pose challenges due to extracellular concentration gradients and intracellular heterogeneity. This study introduces a novel approach integrating the method of moments with truncated normal distributions (MM‐TND) to model intracellular heterogeneity while maintaining computational feasibility ...
Ittisak Promma, Marc G. Aucoin, Nasser Mohieddin Abukhdeir, Hector Budman   +3 more
wiley   +1 more source

Room‐Temperature Mid‐Infrared Detection Using Metasurface‐Absorber‐Integrated Phononic Crystal Oscillator

Laser &Photonics Reviews, Volume 19, Issue 20, October 20, 2025.
Room‐temperature mid‐infrared (MIR) detectors are demonstrated using lithium niobate surface acoustic wave phononic crystal oscillators integrated with metasurface absorbers. The devices exhibit rapid thermal response and simplified fabrication compared to suspended resonators.
Zichen Xi, Zengyu Cen, Dongyao Wang, Joseph G. Thomas, Bernadeta R. Srijanto, Ivan I. Kravchenko, Jiawei Zuo, Honghu Liu, Jun Ji, Yizheng Zhu, Yu Yao, Linbo Shao   +11 more
wiley   +1 more source

Thermal Infrared Spectrometers for the Polar Radiant Energy in the Far‐Infrared Experiment (PREFIRE)

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract The Polar Radiant Energy in the Far‐InfraRed Experiment (PREFIRE) was selected by NASA to fly two miniaturized Thermal InfraRed Spectrometers (TIRS) capable of distinguishing the spectral signatures of surface and atmospheric properties in Earth's polar regions.
Brian J. Drouin, Tristan L’Ecuyer, Sharmila Padmanabhan, Marc Foote, Rudi Bendig, Simon Calcutt, Gary Hawkins, Harrison Herzog, Eric Hochberg, Matthew Kenyon, Giacomo Mariani, David A. Martinez, James McGuire, Ian Mckinley, Aronne Merrelli, Deacon Nemchick, Nasrat Raouf, Gary Spiers, Daniel Wilson   +18 more
wiley   +1 more source

Dominant Trends in Jupiter's H3+ ${\mathbf{H}}_{\mathbf{3}}^{\mathbf{+}}$ Northern Aurora: II. Magnetospheric Mapping

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Jupiter's auroral regions have previously been defined by broad‐scale auroral structures, but these are typically obscured by the wide array of temporal variability observed at timescales between minutes and days, making it difficult to understand the underlying magnetospheric biases driving these brightness differences.
Tom S. Stallard, Katie L. Knowles, Henrik Melin, Ruoyan Wang, Emma M. Thomas, Luke Moore, James O’Donoghue, Rosie E. Johnson, Steve Miller, John C. Coxon   +9 more
wiley   +1 more source

Global Geomagnetic Model Errors as a Function of Altitude and Geomagnetic Activity

Space Weather, Volume 23, Issue 10, October 2025.
Abstract The errors of global geomagnetic models, such as the International Geomagnetic Reference Field and the World Magnetic Model (WMM), are well‐characterized at the Earth's surface, but their error behavior as a function of altitude and geomagnetic activity has not been quantified.
Manoj Nair, Martin Fillion, Arnaud Chulliat, Sam Califf   +3 more
wiley   +1 more source

JWST/NIRSpec Detection of Complex Structures in Saturn's Sub‐Auroral Ionosphere and Stratosphere

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Past observations of Saturn's sub‐auroral ionosphere have provided no detailed longitudinal information, and variations in underlying stratospheric emission from methane fluorescence have never been resolved spatially. Here, we present the first near‐infrared observations of Saturn using JWST's NIRSpec‐IFU, revealing the 2.8–5.2 micron ...
Tom S. Stallard, Luke Moore, Henrik Melin, Omakshi Agiwal, M. Nahid Chowdhury, Rosie E. Johnson, Katie L. Knowles, Emma M. Thomas, Paola I. Tiranti, James O’Donoghue, Khalid Mohamed, Ingo Mueller‐Wodarg, Leigh Fletcher, Imke de Pater, Thierry Fouchet, Sarah V. Badman   +15 more
wiley   +1 more source

Re-recognized universality of Kozai oscillation on three-body dynamics. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci
Iye M, Ito T.
europepmc   +1 more source