Results 101 to 110 of about 18,055 (209)

Effect of Field Line Torsion on the Polarization of ULF Waves

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract In this paper we suggest a simple modification of the dipole magnetic field which introduces field‐aligned currents and torsion to the field lines. The resulting field lines are not contained in the meridional planes and have resemblance to the geomagnetic field lines in the dawn and dusk flanks of the magnetosphere. We analyze polarization of
K. Kabin, A. W. Degeling, R. Rankin
wiley   +1 more source

Continued development and application of far-infrared detection techniques [PDF]

The development of a balloon gondola and pointing system are discussed which can be used with the low background far infrared telescope. Flight test progress of the new gondola is reported using a 3-axis system which would provide much greater ...
Low, F. J.
core   +1 more source

Disclosing the May 2024 Geomagnetic Storm: A Synergistic View From the Remote Talos Dome Station on the Antarctic Plateau, Ground Networks, and Space

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We analyze the May 2024 geomagnetic storm using a unique longitudinal chain of Antarctic stations, including the new remote Talos Dome measurement site. By combining its high‐resolution magnetic data with observed values from coastal (Terra Nova Bay and Scott Base) and the polar‐cap (Dome C) observatories, Southern Hemisphere auroral indices ...
Lucia Santarelli, Mauro Regi, Paola De Michelis, Paolo Bagiacchi, Giovanni Benedetti   +4 more
wiley   +1 more source

Thermal Segregation and Reddening in Europa's Double Ridges

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Europa's double ridges often display lower albedo and redder color than their surroundings. Their unique topography may cause sublimation‐driven darkening due to illumination and self‐heating—the process of thermal segregation. We apply an advanced 3D thermophysical model, including shadowing and self‐heating through mutual exchange of ...
Kya C. Sorli, Paul O. Hayne, Lucas Lange, Sylvain Piqueux   +3 more
wiley   +1 more source

Wurdi Youang: an Australian Aboriginal stone arrangement with possible solar indications

, 2012
Wurdi Youang is an egg-shaped Aboriginal stone arrangement in Victoria, Australia. Here we present a new survey of the site, and show that its major axis is aligned within a few degrees of east-west.
Abrahams, Reg, Hamacher, Duane W., Norris, Cilla, Norris, Ray P.   +3 more
core  

Saponite Bearing Material Excavated During the Formation of a Recent 25‐m‐Diameter Impact Crater in Southeastern Arabia Terra on Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Mars Reconnaissance Orbiter's Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), Context Imager (CTX), and High Resolution Imaging Science Experiment observations were analyzed for a 25‐m‐wide impact crater and associated ejecta deposits located in the dust‐covered Arabia Terra region.
R. E. Arvidson, J. G. Catalano, J. R. Christian, A. A. Fraeman, M. N. Hughes, A. L. Knight, W. B. McKinnon, R. V. Morris, S. L. Murchie, J. A. O’Sullivan, D. V. Politte, F. Seelos, M. J. Wolff, F. Zhou   +13 more
wiley   +1 more source

Look angles for a celestial body [PDF]

Computation of look angles for celestial bodies for alignment of satellite tracking ...
Zolnay, S.
core   +1 more source

Mercury’s Low‐Latitude Boundary Layer: Identification of Distinct Proton Populations Using MESSENGER Spacecraft Data

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract We have performed a comprehensive analysis of Mercury’s Low‐Latitude Boundary Layer (LLBL) using data from the MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) spacecraft during its orbital phase. Using combined magnetic field and ion measurements, we identified 202 LLBL events and categorized them into three distinct ...
X. Wang, L. Z. Hadid, S. Aizawa, F. Sahraoui, J. M. Raines, B. Lavraud   +5 more
wiley   +1 more source

Ionospheric Effects on Maximum Usable Frequency for a Cross‐Auroral and a Polar Cap HF Radio Link

Radio Science, Volume 61, Issue 5, May 2026.
Abstract Maximum usable frequency (MUF) is an important indicator of the ability of the ionosphere to support over‐the‐horizon propagation of high frequency (HF) radio waves. MUF depends on the location of the transmitter and receiver, and the structure of ionospheric electron density.
T. G. Cameron, K. W. Reiter, R. A. D. Fiori   +2 more
wiley   +1 more source

Ionospheric Amplitude Scintillation Evolution Characterizing Using High Resolution S4 Index in the Crests of the EIA Regions During Solar Maximum Periods

Space Weather, Volume 24, Issue 5, May 2026.
Abstract Ionospheric scintillation in the Equatorial Ionization Anomaly (EIA) region significantly impacts the performance of Global Navigation Satellite System (GNSS). While scintillation characteristics have been widely studied globally, the evolution of scintillation events remains underexplored.
Zhipeng Wang, Weilin Gong, Kai Guo, Yiming Wang, Joǎo Francisco Galera Monico, Zhizhao Liu   +5 more
wiley   +1 more source