Results 61 to 70 of about 11,117 (189)

Can We Distinguish the Source Region Location of Filament/Prominence Eruptions from the Sun-as-a-star Hα Spectrum?

The Astrophysical Journal
Solar filament/prominence eruptions can significantly perturb geospace when originating from favorable source locations and directions. While stellar analogs have been recently reported, the disk locations and magnetic environments of their source ...
Junyi Zhang, Yijun Hou, Xiaofeng Liu, Ting Li, Shihao Rao, Ye Qiu, HuiPing Jin, Yingjie Cai, Yangrui Chen, Chuan Li   +9 more
doaj   +1 more source

Segmentation and Tracking of Eruptive Solar Phenomena With Convolutional Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Solar eruptive events are complex phenomena, which most often include coronal mass ejections (CME), CME‐driven compressive and shock waves, flares, and filament eruptions. CMEs are large eruptions of magnetized plasma from the Sun's outer atmosphere or corona, that propagate outward into the interplanetary space.
Oleg Stepanyuk, Kamen Kozarev
wiley   +1 more source

Observations of a solar flare and filament eruption in Lyman $\mathsf{\alpha}$ and X-rays [PDF]

Astronomy & Astrophysics, 2009
We aim to characterise the appearance and behaviour of a flare and filament ejection which occurred on 8th September 1999 and was observed by TRACE in L-alpha as well as by the Yohkoh Soft and Hard X-ray telescopes. We explore the flare energetics and its spatial and temporal evolution.
da Costa, F. Rubio, Fletcher, L., Labrosse, N., Zuccarello, F.   +3 more
openaire   +2 more sources

Fast Downflows Observed during a Polar Crown Filament Eruption

The Astrophysical Journal
Solar filaments can undergo eruptions that result in the formation of coronal mass ejections, which can significantly impact planetary space environments. Observations of eruptions involving polar crown filaments, situated in the polar regions of the Sun,
Zheng Sun, Hui Tian, Ting Li, Rui Liu, Yadan Duan   +4 more
doaj   +1 more source

Sun-as-a-star Spectroscopic Observations of the Line-of-sight Velocity of a Solar Eruption on 2021 October 28

The Astrophysical Journal, 2022
The propagation direction and true velocity of a solar coronal mass ejection, which are among the most decisive factors for its geo-effectiveness, are difficult to determine through single-perspective imaging observations. Here we show that Sun-as-a-star
Yu Xu, Hui Tian, Zhenyong Hou, Zihao Yang, Yuhang Gao, Xianyong Bai   +5 more
doaj   +1 more source

Deep Learning‐Based Prediction of High‐Speed Solar Wind Streams: Spatio‐Temporal Dependencies in Coronal Hole Dynamics

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract High‐speed solar wind streams (HSS), originating from coronal holes (CH), are key drivers of space weather disturbances and heliospheric dynamics. However, forecasting HSS remains challenging due to the evolving morphology of CH. In this study, we present a deep learning‐based framework that models the spatiotemporal relationship between CH ...
J. J. Abraham‐Alowonle, Amr Hamada, Moataz Abdelwahab, Kanya Kusano, Ayman Mahrous   +4 more
wiley   +1 more source

Quiet-Filament Eruptions and Coronal Jets as Causes of Depressions in Microwave Radio Emission

Astronomy reports (Print), 2021
Several solar events with different types of negative microwave bursts have been studied using data from different spectral ranges. The total radio flux data obtained at the Ussuriysk Observatory, the Nobeyama Observatory, the US Air Force Radio Solar ...
I. Kuzmenko
semanticscholar   +1 more source

Structure of Jupiter's High‐Latitude Storms: Folded Filamentary Regions Revealed by Juno

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Sprawling, turbulent cloud formations dominate the meteorology of Jupiter's mid‐to‐high latitudes, known as Folded Filamentary Regions (FFRs). A multi‐wavelength characterization by Juno reveals the spatial distribution, vertical structure, and energetics of the FFRs.
L. N. Fletcher, Z. Zhang, S. Brown, F. A. Oyafuso, J. H. Rogers, M. H. Wong, A. Mura, G. Eichstädt, G. S. Orton, S. Brueshaber, R. Sankar, C. Li, S. M. Levin, F. Biagiotti, T. Guillot, A. P. Ingersoll, D. Grassi, C. J. Hansen, S. Bolton, J. H. Waite   +19 more
wiley   +1 more source

Mini-filaments – small-scale analogues of solar eruptive events? [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractMini-filaments are a small-scale phenomenon of the solar chromosphere, which frequently occur across the entire disk (see e.g. Wang, Li, Denker, et al. 2000). They share a variety of characteristics with their larger-scale cousins and may serve as a proxy for more complex systems. They play an important role in the energy and mass supply to the
Carsten Denker, Alexandra Tritschler
openaire   +1 more source

Antimicrobial prescribing guidelines for horses in Australia

Australian Veterinary Journal, Volume 103, Issue 12, Page 781-889, December 2025.
The growing problem of antimicrobial resistance also affects equine veterinarians with increasing frequency. Antimicrobial stewardship and responsible prescribing are essential for a future in which effective antimicrobials are available, as it is unlikely that new antimicrobials will become available for use in horses.
L Hardefeldt, K Thomas, S Page, J Norris, G Browning, C El Hage, A Stewart, J Gilkerson, G Muscatello, D Verwilghen, G van Galen, J Bauquier, R Cuming, B Reynolds, C Whittaker, E Wilkes, J Clulow, C Burden, L Begg   +18 more
wiley   +1 more source