Results 31 to 40 of about 3,305 (196)
Two successive partial mini-filament confined ejections [PDF]
, 2019 Active region (AR) NOAA 11476 produced a series of confined plasma ejections, mostly accompanied by flares of X-ray class M, from 08 to 10 May 2012. The structure and evolution of the confined ejections resemble that of EUV surges; however, their origin ...
Bustos, C. +4 more
core +2 more sources
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
Prediction of Solar Eruptions Using Filament Metadata
The Astrophysical Journal Supplement Series, 2018 Abstract We perform a statistical analysis of erupting and non-erupting solar filaments to determine the properties related to the eruption potential. In order to perform this study, we correlate filament eruptions documented in the Heliophysics Event Knowledgebase (HEK) with HEK filaments that have been grouped together using a ...
Ashna Aggarwal +4 more
openaire +1 more source
Causal Relationships between Eruptive Prominences and Coronal Mass Ejections [PDF]
, 2007 A close association between eruptive prominences and CMEs, both slow and fast CMEs, was reported in many studies. Sometimes it is possible to follow the material motion starting from the prominence (filament) activation to the CME in the high corona ...
Filippov, Boris, Koutchmy, Serge
core +4 more sources
A new paradigm for solar filament eruptions [PDF]
Journal of Geophysical Research: Space Physics, 2001 This article discusses the formation, magnetic structure, and eruption of solar filaments in terms of two contrasting paradigms. The standard paradigm is that filaments are formed by condensation of plasma on coronal magnetic fields that are twisted or dimpled as a result of photospheric motions.
openaire +1 more source
The role of filament activation in a solar eruption [PDF]
Astronomy & Astrophysics, 2012 Observations show that the mutual relationship between filament eruptions and solar flares cannot be described in terms of an unique scenario. In some cases, the eruption of a filament appears to trigger a flare, while in others the observations are more consistent with magnetic reconnection that produces both the flare observational signatures (e.g ...
da Costa F. Rubio +4 more
openaire +3 more sources
On the partial eruption of a bifurcated solar filament structure [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The partial eruption of a filament channel with bifurcated substructures is investigated using data sets obtained from both ground-based and space-borne facilities. Small-scale flux reconnection/cancellation events in the region triggered the pile-up of ambient magnetic field, observed as bright extreme ultraviolet (EUV) loops ...
Monga, A. +6 more
openaire +4 more sources
Eruptive and Quasi-Eruptive Disappearing Solar Filaments and Their Relationship with Coronal Activities [PDF]
Publications of the Astronomical Society of Japan, 2003 Abstract By measuring the 3-D velocity fields of 35 disappearing filaments (Disparition Brusques: DBs) on the solar disk, we studied the causal relationship between the motions of $\mathrm{H}\alpha$ DBs and the associated coronal phenomena.
Taro Morimoto, Hiroki Kurokawa
openaire +1 more source
Mechanism of the Failed Eruption of an Intermediate Solar Filament
The Astrophysical Journal, 2022 Abstract Solar filament eruptions can generate coronal mass ejections (CMEs), which are huge threats to space weather. Thus, we need to understand their underlying mechanisms. Although many authors have studied the mechanisms for several decades, we still do not fully understand in what conditions a filament can erupt to become a CME or ...
Zou Peng +3 more
openaire +1 more source
Relationship between eruptions of active-region filaments and associated flares and CMEs
, 2011 To better understand the dynamical process of active-region filament eruptions and associated flares and CMEs, we carried out a statistical study of 120 events observed by BBSO, TRACE, and t(SOHO/EIT) from 1998 to 2007 and combined filament observations ...
Alexander +77 more
core +1 more source