Results 41 to 50 of about 5,188 (295)

Flux Tube Properties and Interchange Instabilities in Jupiter's Middle Magnetosphere

Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract In Jupiter's magnetosphere, the outward transport of Io‐genic plasma and the planetward injection of energetic particles are facilitated by flux tube interchange motion driven by centrifugal instabilities. Flux tube content and entropy are two competing key quantities that determine the behavior of the system.
Jian‐Zhao Wang, Fran Bagenal, Simon Wing, Peter A. Delamere, Xuanye Ma, Robert J. Wilson, Robert W. Ebert, Philip W. Valek, Frederic Allegrini, Vincent Dols, Licia C. Ray, Chynna Spitler, George Clark, Barry H. Mauk   +13 more
wiley   +1 more source

Electron Energization by Ion Density Enhancement in the Martian Magnetotail—MAVEN Observations

The Astrophysical Journal
It has been long observed at Mars that electron fluxes are enhanced during the tail current sheet crossings, of which the cause is not well understood. We use a novel approach to reveal one of the electron energization mechanisms with observations from ...
Shaosui Xu, David L. Mitchell, Jasper S. Halekas, James P. McFadden, Christopher M. Fowler, Kathleen Hanley, Gina A. DiBraccio, Christian Mazelle, Hassan Akbari, Shannon M. Curry   +9 more
doaj   +1 more source

Effects of Mineralogy and UV Radiation on the Detectability of Amino Acids Within the Martian Regolith: The Case for a Combined Chromatographical and Spectroscopical Approach

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Amino acids are an extremely heterogeneous group of biomolecules essential for life on Earth. Their biosignatures are expected to be easily degraded on the Martian surface as the absence of a thick atmosphere and a magnetosphere leads to most of the solar radiation directly reaching its surface.
Miguel Arribas Tiemblo, Pedro Rayo, María‐Paz Martín‐Redondo, Felipe Gómez   +3 more
wiley   +1 more source

The modulation of SiO maser polarization by Jovian planets

, 2008
Searching for planets in the atmosphere of AGB stars is difficult, due to confusion with the stellar wind and pulsations. The aim here is to provide a complementary strategy for planet search in such a dense environment.
Alexeev, Asensio Ramos, Barvainis, Bujarrabal, Cherchneff, Cotton, Cotton, Deguchi, Deguchi, Desmurs, Diamond, Elitzur, Elitzur, Fiebig, Glenn, Goldreich, Gray, Gray, H. Wiesemeyer, Hartquist, Herpin, Herwig, Humlícek, Humphreys, Kemball, Landi Deglinnocenti, McIntosh, Nedoluha, Niedzielski, Phillips, Santos, Sargent, Schreier, Setiawan, Shue, Silvotti, Soker, Soker, Soker, Soria-Ruiz, Struck, Struck, Struck-Marcell, Thum, Villaver, Wang, Watson, Western, Wiesemeyer   +48 more
core   +2 more sources

Ocean Worlds Maintained by Ocean Tidal Heat Expected on Several Uranian Moons

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract In recent NASA decadal surveys, detecting oceans among Uranus' moons has been identified as a research priority in future missions. Currently, the prevailing view in planetary science is that the likelihood of finding oceans is highest on the larger moons, Titania and Oberon, due to their higher integrals of radiogenic heat sources. This study
Robert H. Tyler
wiley   +1 more source

Effects of the 2018 Martian Global Dust Storm on Boundary Positions in the Induced Magnetosphere

The Planetary Science Journal
Global dust storms at Mars have a significant impact on the atmosphere and ionosphere, but only recently has their impact on the magnetosphere been investigated.
Catherine E. Regan, Andrew J. Coates, Mark Lester, Anne Wellbrock, Geraint H. Jones, Beatriz Sánchez-Cano, Philippe Garnier, Louisa J. Preston, František Němec, Václav Linzmayer, Rudy A. Frahm, Mats Holmström   +11 more
doaj   +1 more source

Geoeffectiveness of Interplanetary Alfvén Waves. II. Spectral Characteristics and Geomagnetic Responses

The Astrophysical Journal, 2023
Using multipoint observations over 10 yr near 1 au, we investigate the spectra (5 minutes to 2 hr) of interplanetary Alfvén waves and the responses in the geomagnetic activities.
Yimin Han, Lei Dai, Shuo Yao, Chi Wang, Walter Gonzalez, Suping Duan, Benoit Lavraud, Yong Ren, Zhenyuan Guo   +8 more
doaj   +1 more source

Magnetic Flux Ropes at Mars and Their Impacts on Heavy Ion Escape

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Flux ropes (FRs), ubiquitous helical magnetic structures in solar system plasmas, are important to energy and particle transport. At Mars, where global intrinsic magnetic fields are absent, FRs form through magnetic reconnection (MR) and magnetospheric or ionospheric boundary wave instabilities (BWIs), but their role in ion escape remains ...
Jinqiao Fan, Yasong S. Ge, Can Huang, Aimin Du, Xiaohua Fang, Tielong Zhang, Yingjuan Ma, Lei Wang, Ziyong Liu   +8 more
wiley   +1 more source

Impacts of Tidal Locking on Magnetospheric Energy Input to Exoplanet Atmospheres

The Astrophysical Journal
We investigate the effect of planetary corotation on energy dissipation within the magnetosphere–ionosphere system of exoplanets. Using magnetohydrodynamic simulations, we find that tidally locked exoplanets have a higher cross polar cap potential (CPCP)
Fatemeh Bagheri, Alex Glocer, Ramon E. Lopez   +2 more
doaj   +1 more source

Interstellar Migration, the Population ‘Problem’ and the Climate Emergency

Critical Quarterly, EarlyView.
Anna Hartnell
wiley   +1 more source