Results 71 to 80 of about 31,874 (242)

Instabilities Driven by Proton Temperature Anisotropy in the Presence of Alpha Particles: Implications for Proton-temperature-anisotropy Constraint in the Solar Wind

The Astrophysical Journal, 2023
In situ measurements reveal that proton temperature anisotropy is ubiquitous in the solar wind. Various plasma instabilities have been proposed to regulate the distribution of the proton temperature anisotropy in the solar wind; detailed constraint ...
L. Xiang, D. J. Wu, L. Chen, Q. H. Li, G. Q. Zhao, H. Q. Feng, H. W. Yu   +6 more
doaj   +1 more source

Space storm measurements of the July 2005 solar extreme events from the low corona to the Earth

, 2010
The Athens Neutron Monitor Data Processing (ANMODAP) Center recorded an unusual Forbush decrease with a sharp enhancement of cosmic ray intensity right after the main phase of the Forbush decrease on 16 July 2005, followed by a second decrease within ...
A. Hillaris, A. Papaioannou, Bastian, Bougeret, C. Caroubalos, Caroubalos, E. Mitsakou, H. Mavromichalaki, Kerdraon, Kontogeorgos, Kontogeorgos, Loewe, Mavromichalaki, Mavromichalaki, Miroshnichenko, P. Preka-Papadema, Papaioannou, X. Moussas, Yashiro   +18 more
core   +1 more source

A Probabilistic Approach to the Drag-Based Model [PDF]

, 2017
The forecast of the time of arrival of a coronal mass ejection (CME) to Earth is of critical importance for our high-technology society and for any future manned exploration of the Solar System.
Berrilli, Francesco, Del Moro, Dario, Forte, Roberta, Giovannelli, Luca, Napoletano, Gianluca, Pietropaolo, Ermanno   +5 more
core   +2 more sources

On the Physical Realization of Two‐dimensional Turbulence Fields in Magnetized Interplanetary Plasmas

The Astrophysical Journal, 2006
Studies of solar-flare cosmic-ray particle transport in the interplanetary medium and data analysis of the fluctuating solar wind magnetic fields have revealed the existence of dominating, two-dimensional transverse magnetic fluctuations. Here it is demonstrated that the filamentation instability of counterstreaming magnetized plasmas provides a ...
A. Stockem, I. Lerche, R. Schlickeiser
openaire   +1 more source

First Observation of Sawtooth‐Like Undulations in Afternoon Detached Auroral Arcs Modulated by Surface Waves at the Plasmaspheric Plume Boundary

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract The afternoon detached auroral arc is an important phenomenon in the subauroral region, reflecting coupling processes between the Earth's magnetosphere and ionosphere. Previous studies have not identified fine‐scale structures in such arcs, leaving the dynamics underlying their formation poorly understood.
Huiting Feng, Dedong Wang, Yixin Hao, Yoshizumi Miyoshi, Haobo Fu, Chae‐Woo Jun, Yuzhang Ma, Yongliang Zhang, Kazushi Asamura, Yoshiya Kasahara, Shoya Matsuda, Atsuki Shinbori, Fuminori Tsuchiya, Atsushi Kumamoto, Ayako Matsuoka, Mariko Teramoto, Kazuhiro Yamamoto, Iku Shinohara, Kazuo Shiokawa, Yuri. Y. Shprits   +19 more
wiley   +1 more source

STEREO and Wind observations of a fast ICME flank triggering a prolonged geomagnetic storm on 5-7 April 2010

, 2010
On 5 April 2010 an interplanetary (IP) shock was detected by the Wind spacecraft ahead of Earth, followed by a fast (average speed 650 km/s) IP coronal mass ejection (ICME).
A. B. Galvin, A. M. Veronig, Burlaga, C. J. Farrugia, C. Möstl, Dasso, Davies, Davis, Eyles, Farrugia, H. K. Biernat, Hu, Kahler, Kaiser, Kilpua, Lepping, Lepping, Lepping, Liu, Lugaz, Lynch, M. Leitner, M. Temmer, Marubashi, Möstl, Möstl, Ogilvie, Riley, Rouillard, T. Rollett, Thernisien, Y. Liu   +31 more
core   +1 more source

Machine Learning for Local Detection of Separators in Three‐Dimensional Magnetic Fields

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Magnetic reconnection is a major plasma phenomenon occurring in various key environments ranging from the Sun and near‐Earth space to astrophysical plasmas. While magnetic reconnection is relatively well‐understood under two‐dimensional (2D) settings, it remains challenging to characterize in three‐dimensional (3D) magnetic fields.
Fanni Franssila, Markku Alho, Ioanna Bouri, Daniel Holmberg, Minna Palmroth, Teemu Roos   +5 more
wiley   +1 more source

Exploring the solar system [PDF]

, 1964
Nasa programs for solar activity and radiation ...

core   +1 more source

Dynamics of large-scale solar-wind streams obtained by the double superposed epoch analysis. 2. CIR.vs.Sheath and MC.vs.Ejecta comparisons

, 2016
This work is a continuation of our previous paper [Yermolaevetal2015] which describes the average temporal profiles of interplanetary plasma and field parameters in large-scale solar-wind (SW) streams: CIR, ICME (both MC and Ejecta) and Sheath as well as
Lodkina, I. G., Nikolaeva, N. S., Yermolaev, M. Yu., Yermolaev, Yu. I.   +3 more
core   +1 more source

Solar Energetic Particle Forecasting With Multi‐Task Deep Learning: SEPNET

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Solar energetic particle (SEP) events pose severe threats to spacecraft, astronaut safety, and aviation operations. Accurate SEP forecasting remains a critical challenge in space weather research as a result of their complex origins and highly variable propagation.
Yian Yu, Yang Chen, Lulu Zhao, Kathryn Whitman, Ward Manchester, Tamas Gombosi   +5 more
wiley   +1 more source