Results 51 to 60 of about 1,126,648 (199)
The Astrophysical JournalSolar 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 +9 more
doaj +1 more source
Space Weather, Volume 24, Issue 8, August 2026.Abstract We present the first real‐time predictions of coronal mass ejection (CME) magnetic structure and resulting geomagnetic impact at Earth for two events using far‐upstream observations from Solar Orbiter during March 2024. While our approach assumes idealized conditions for CME propagation and scaling, in situ magnetic field data from upstream ...
Emma E. Davies +8 more
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 +3 more
openaire +2 more sources
Early Hinode Observations of a Solar Filament Eruption [PDF]
, 2007 We use Hinode X-Ray Telescope (XRT) and Solar Optical Telescope (SOT) filtergraph (FG) Stokes-V magnetogram observations to study the early onset of a solar eruption that includes an erupting filament that we observe in TRACE EUV images; this is one of ...
Sterling, Alphonse C., Moore, Ronald L.
core
Fast Downflows Observed during a Polar Crown Filament Eruption
The Astrophysical JournalSolar 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 +4 more
doaj +1 more source
The Astrophysical Journal, 2023 Solar filaments often exhibit rotation and deflection during eruptions, which would significantly affect the geoeffectiveness of the corresponding coronal mass ejections (CMEs).
J. H. Guo +8 more
doaj +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
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Initiation of Solar Eruptions [PDF]
, 2007 We consider processes occurring just prior to and at the start of the onset of flare- and CME-producing solar eruptions. Our recent work uses observations of filament motions around the time of eruption onset as a proxy for the evolution of the fields ...
Sterling, Alphonse C., Moore, Ronald L.
core
Solar Flares Triggered by a Filament Peeling Process Revealed by High-resolution GST Hα Observations
The Astrophysical Journal LettersThe dynamic structures of solar filaments prior to solar flares provide important physical clues about the onset of solar eruptions. Observations of those structures under subarcsecond resolution with high cadence are rare.
Mia Mancuso +3 more
doaj +1 more source
Limnology and Oceanography, Volume 71, Issue 7, July 2026.Abstract Oxygen is critical for nearly all life on Earth, including aquatic species that breathe dissolved oxygen in both freshwater and marine systems. The rapid, global, and anthropogenic loss of dissolved oxygen known as “aquatic deoxygenation” threatens life in these environments, the human communities that depend on them, and Earth system ...
Erica M. Ferrer +8 more
wiley +1 more source