Results 71 to 80 of about 4,201 (186)
Modeling of non-thermal fractions formed in the extended hydrogen corona at Mars
Frontiers in Astronomy and Space SciencesSolar forcing on the upper atmospheres of terrestrial planets occurs through both the absorption of soft X-ray and extreme ultraviolet (XUV) solar radiation and the influx of solar wind plasma resulting in the formation of an extended neutral corona ...
Valery Shematovich +2 more
doaj +1 more source
Unraveling the Fine‐Scale Tapestry of Solar Wind at 1AU
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Solar wind is a complex network of distinct magnetic flux tubes, each contained and separated by a current sheet. In this study, more than 50,000 current sheets in the solar wind are identified and characterized for the first time, using multi‐point Cluster observations during solar minimum and maximum intervals.
M. Akhavan‐Tafti +3 more
wiley +1 more source
The Astrophysical JournalTotal solar eclipses (TSEs) provide a unique opportunity to observe the large-scale solar corona. The solar wind plays an important role in forming the large-scale coronal structure, and magnetohydrodynamic (MHD) simulations are used to reproduce it for ...
Yihua Li +8 more
doaj +1 more source
Terrestrial Gamma‐Ray Flash Following Intense Negative Return Stroke Observed With BIMAP‐3D
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.Abstract We report ground‐based observations of a terrestrial gamma‐ray flash (TGF) associated with a strong negative cloud‐to‐ground lightning strike (‐CG) which occurred near Los Alamos National Laboratory (LANL) in New Mexico, USA. Gamma photons were detected by the Terrestrial High‐energy Observations of Radiation (THOR) instrument, developed at ...
Daniel P. Jensen +4 more
wiley +1 more source
Physics-based Forecasting of Tomorrow’s Solar Wind at 1 au
The Astrophysical JournalInspired by the concept of relativity of simultaneity used in the theory of special relativity, a new approach is proposed to simulate future solar wind conditions at any point in the inner solar system.
Igor V. Sokolov, Tamas I. Gombosi
doaj +1 more source
Energy and Mass Transport Associated with Impulsive Spicular Flows in Solar Coronal Holes
The Astrophysical Journal LettersHow the solar atmosphere is heated from a temperature of about 5000 to 6000 K in the lower atmosphere to about 1–2 MK in the corona has challenged the astrophysical community for nearly 80 yr.
Lei Ni +5 more
doaj +1 more source
A MECHANICAL THEORY OF THE SOLAR CORONA. [PDF]
Publications of the Astronomical Society of the Pacific, 1890 Mode of access: Internet.
openaire +2 more sources
Five Solar Cycles of Solar Corona Investigations. [PDF]
Sol Phys, 2022 Antonucci E.
europepmc +1 more source
Abstract The solar corona is the hot, tenuous outer layer of the Sun’s atmosphere. The coronal plasma is roughly around 1 mega-Kelvin (MK) but can reach temperatures of around 10 MK in certain regions. Due to this high temperature, the plasma in the corona emits electromagnetic radiation predominantly at Extreme Ultraviolet (EUV) and ...
Rosch, J., Rosch, J.
openaire +3 more sources
The Astrophysical JournalWe explore the capabilities of time-dependent (TD) magnetohydrodynamic (MHD) solar wind simulations with the coupled Wang–Sheeley–Arge (WSA) model of the solar corona and the Grid Agnostic MHD for Extended Research Applications model of the inner ...
Evangelia Samara +4 more
doaj +1 more source