Results 101 to 110 of about 35,358 (192)

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

Radio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park, J. E. Riedel, N. Rodriguez‐Alvarez, M. Brozovic, L. A. M. Benner, P. Vergados, D. Buccino, C. S. Jacobs, L. S. Locke, S. W. Asmar, R. Castano, T. J. W. Lazio, J. Jao, C. Lee   +13 more
wiley   +1 more source

Magnetorotational instability in dense electron-positron-ion plasmas. [PDF]

Sci Rep, 2023
Usman S, Mushtaq A.
europepmc   +1 more source

The Impact of OMNI Data Accuracy on Thermospheric Neutral Density Simulations at Grid Cell Resolutions

Space Weather, Volume 23, Issue 7, July 2025.
Abstract As physics‐based global magnetosphere‐ionosphere‐thermosphere models enter operations for space weather forecasting, it is imperative that the sources of uncertainty in model outputs are thoroughly investigated. Global magnetosphere models rely on a set of input solar wind conditions to drive the model; such inputs are often propagated from ...
Espen Fredrick, Yu Hong, Ramon Lopez, Yue Deng   +3 more
wiley   +1 more source

A Method to Retrieve Aeronomic Parameters From Noontime Bottom‐Side Equatorial Ne(h) and Satellite Neutral Density Observations

Space Weather, Volume 23, Issue 7, July 2025.
Abstract A new method has been proposed to retrieve neutral composition ([O] [O2], [N2]), exospheric temperature (Tex), vertical ExB plasma drift, and total solar EUV flux (λ ≤ 1050Å) using Digisonde DPS‐4 daytime bottom‐side (≥200 km) Ne(h) profiles and satellite‐observed neutral density.
L. Perrone, A. V. Mikhailov
wiley   +1 more source

Ionospheric Scintillation and Geomagnetic Disturbance Caused by Space Hurricanes

Space Weather, Volume 23, Issue 7, July 2025.
Abstract A space hurricane is a large‐scale, cyclone‐shaped aurora characterized by a rotating magnetic structure and shears in plasma convection, driven by high‐latitude magnetic reconnection. It typically forms near the magnetic poles in summertime, providing an efficient energy transport channel from the solar wind to the Earth's magnetosphere under
Sheng Lu, Zan‐Yang Xing, Qing‐He Zhang, Yong‐Liang Zhang, Hui‐Gen Yang, Kjellmar Oksavik, L. R. Lyons, Kazuo Shiokawa, Yong Wang, Yu‐Zhang Ma, Xiang‐Yu Wang, Tong Xu, Shu‐Ji Sun, Duan Zhang   +13 more
wiley   +1 more source

Estimation of Reconnection Rate From Soft X‐Ray Emission at the Earth's Dayside Magnetopause

Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract We propose an approach to estimating the reconnection rate by utilizing soft X‐rays emitted during the solar wind charge exchange (SWCX) process at the Earth's magnetopause. Employing a high‐resolution global magnetohydrodynamic (MHD) simulation model of the magnetosphere, we investigated the SWCX emission around the magnetopause during a ...
Ryota Momose, Yosuke Matsumoto, Yoshizumi Miyoshi   +2 more
wiley   +1 more source

Direct frequency comb spectroscopy of HCN to evaluate line lists. [PDF]

Faraday Discuss, 2023
Bailey DM, Crump EM, Hodges JT, Fleisher AJ.   +3 more
europepmc   +1 more source

Evaluating the Parker Model With the Trans‐Heliospheric Survey

Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract The solar wind's expansion through the heliosphere is often studied by “radial trends”—the average trends in fluid parameters as functions of radial distance from the Sun. This study utilizes the latest version of the Trans‐Heliospheric Survey, a compilation of in‐situ magnetic field and proton measurements from 13 different spacecraft ...
Carson P. Brown, Bennett A. Maruca, Vaishali Prabakaran, Ramiz A. Qudsi, B. M. Walsh, B. L. Alterman, Philip A. Isenberg   +6 more
wiley   +1 more source

Observation of sub-relativistic collisionless shock generation and breakout dynamics. [PDF]

Nat Commun
Bai Y, Zhang D, Zeng Y, Mao J, Song L, Tian Y, Li R.   +6 more
europepmc   +1 more source

Flux equipartition in astrophysical plasma turbulence. [PDF]

Sci Adv
Marino R, Xie JH.
europepmc   +1 more source