Results 111 to 120 of about 9,557 (243)

TOWARD RELIABLE BENCHMARKING OF SOLAR FLARE FORECASTING METHODS [PDF]

, 2012
D. Shaun Bloomfield, Paul A. Higgins, R. T. James McAteer, Peter T. Gallagher   +3 more
openalex   +1 more source

Second‐Scale Formation of Non‐Field‐Aligned Plasma Irregularities Observed From a High‐Altitude 43‐Cassiopeiids Fireball

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract High‐altitude optical meteors initiating above 150 km are exceedingly rare, with confirmed observations largely confined to the Leonids. Using the Meteor and ionospheric Irregularity Observation System, we recorded a bright 43‐Cassiopeiids fireball with heterogeneous material. It initiated luminously at an exceptional altitude of 157.8 ± $\pm $
Yi Li, Guozhu Li, Zhi Wu, Wenzhi Chen, Zhaoguo Huang, Lianhuan Hu, Xiukuan Zhao, Wenjie Sun, Haiyong Xie, Guofeng Dai, Jianfei Liu, Baiqi Ning, Shoumin Chang   +12 more
wiley   +1 more source

Two Distinctly Different Characteristics of Flare-driven Coronal Rain Revealed from High-resolution Spectroscopic Imaging Observations with FISS/GST

The Astrophysical Journal
We report on a flare-driven coronal rain event observed along postflare loops during the decay phase of an X1.6-class solar flare. Although high-resolution studies of flare-driven coronal rain have been conducted, imaging spectroscopic studies are rare ...
Donguk Song, Eun-Kyung Lim, Jongchul Chae, Maria S. Madjarska, Masahito Kubo, Hannah Kwak, Juhyung Kang, Ryohtaroh T. Ishikawa, Kyoung-Sun Lee   +8 more
doaj   +1 more source

Active Region Magnetograms for Solar Flare Prediction: Full Resolution Dataset Images for ARs 2284 through 2488

, 2023
Laura E. Boucheron, Ty Vincent, Jeremy A. Grajeda, Ellery Wuest   +3 more
openalex   +1 more source

Daytime Ionospheric F‐Region Topside Irregularities Associated With Significant Density Enhancement at Low Latitudes During the 12 November 2025 Magnetic Storm

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract In this study, daytime F‐region irregularities were observed at low latitudes during the main phase of the 12 November 2025 strong magnetic storm, causing intense very high frequency radar echoes ranging hundreds of kilometers in altitude.
Wenjie Sun, Guozhu Li, Guofeng Dai, Haiyong Xie, Lianhuan Hu, Biqiang Zhao, Zequan Wang, Jianfei Liu, Xiukuan Zhao, Yi Li, Baiqi Ning   +10 more
wiley   +1 more source

Observations of Geomagnetic Crochet at High‐Latitudes Due To X1.5 Class Solar Flare on 3 July 2021

Space Weather
On 3 July 2021, an X1.5 solar flare from the National Oceanic and Atmospheric Administration solar Active Region AR12838 (24°N, 88°W) occurred at 14:18 UT, peaked at 14:29 UT, and decayed at 14:34 UT. The study of this X1.5 solar flare is significant due
S. S. Rao, Nandita Srivastava, Monti Chakraborty, Sandeep Kumar, D. Chakrabarty   +4 more
doaj   +1 more source

Electron Trapping and Precipitation in Asymmetric Solar Flare Loops [PDF]

, 2000
Markus J. Aschwanden, L. Fletcher, Taro Sakao, T. Kosugi, H. S. Hudson   +4 more
openalex   +1 more source

Recurrent analysis of solar flare signals

, 2021
A.S. Erezhimbetova, U. Abdigappar, Н.Ш. Алимгазинова, N.Ү. Dauylbai   +3 more
openalex   +1 more source

Soft X-ray High-Temperature Regions above Solar Flare Loops [PDF]

, 2001
幸子 秋山
openalex   +1 more source

Uncovering the heterogeneity of a solar flare mechanism with mixture models

Frontiers in Astronomy and Space Sciences
The physics of solar flares occurring on the Sun is highly complex and far from fully understood. However, observations show that solar eruptions are associated with the intense kilogauss fields of active regions, where free energies are stored with ...
Bach Viet Do, Yang Chen, Yang Chen, XuanLong Nguyen, Ward Manchester   +4 more
doaj   +1 more source