Results 31 to 40 of about 5,709 (297)

Damping mechanisms for oscillations in solar prominences [PDF]

open access: yes, 2010
Small amplitude oscillations are a commonly observed feature in prominences/filaments. These oscillations appear to be of local nature, are associated to the fine structure of prominence plasmas, and simultaneous flows and counterflows are also present ...
A.J. Díaz   +89 more
core   +1 more source

Solar Prominence Interactions

open access: yesThe Astrophysical Journal, 2005
We report numerical simulations of the formation, interaction, and magnetic reconnection between pairs of solar prominences within the sheared-arcade model. Our experiments consider the four possible basic combinations of chiralities (identical or opposite) and axial magnetic fields (aligned or opposed) between the participating prominences.
Devore, C. R.   +2 more
openaire   +3 more sources

High-altitude Spider-type Prominence above the Magnetic Null Point

open access: yesThe Astrophysical Journal, 2023
Rather unique observations of a high-altitude spider-type prominence in 2023 February are presented. The prominence or corresponding filament on the disk was not visible all the time but could appear and disappear in the course of a particular day ...
Boris Filippov
doaj   +1 more source

An analytical model of prominence dynamics

open access: yes, 2017
Solar prominences are magnetic structures incarcerating cool and dense gas in an otherwise hot solar corona. Prominences can be categorized as quiescent and active.
Bhat, Atul   +3 more
core   +1 more source

The Structure of Coronal Mass Ejections Recorded by the K-Coronagraph at Mauna Loa Solar Observatory

open access: yesThe Astrophysical Journal Letters, 2023
Previous survey studies reported that coronal mass ejections (CMEs) can exhibit various structures in white-light coronagraphs, and ∼30% of them have the typical three-part feature in the high corona (e.g., 2–6 R _⊙ ), which has been taken as the ...
Hongqiang Song   +5 more
doaj   +1 more source

Determination of 3D Trajectories of Knots in Solar Prominences Using MSDP Data [PDF]

open access: yes, 2010
In this paper we present a new method of restoration of the true thee-dimensional trajectories of the prominence knots based on ground-based observations taken with a single telescope, which is equipped with a Multi-Channel Subtractive Double Pass ...
A. Bemporad   +17 more
core   +2 more sources

Laboratory simulations of solar prominence eruptions [PDF]

open access: yes, 1998
Spheromak technology is exploited to create laboratory simulations of solar prominence eruptions. It is found that the initial simulated prominences are arched, but then bifurcate into twisted secondary structures which appear to follow fringing field ...
Bellan, P. M., Hansen, J. F.
core   +1 more source

Statistical Analyses of Solar Prominences and Active Region Features in 304 Å Filtergrams Detected via Deep Learning

open access: yesThe Astrophysical Journal Supplement Series
Solar active regions (ARs) are areas on the Sun with very strong magnetic fields where various activities take place. Prominences are one of the typical solar features in the solar atmosphere, whose eruptions often lead to solar flares and coronal mass ...
T. Zhang, Q. Hao, P. F. Chen
doaj   +1 more source

Periodic behaviour of coronal mass ejections, eruptive events, and solar activity proxies during solar cycles 23 and 24 [PDF]

open access: yes, 2018
We report on the parallel analysis of the periodic behaviour of coronal mass ejections (CMEs) based on 21 years [1996 -- 2016] of observations with the SOHO/LASCO--C2 coronagraph, solar flares, prominences, and several proxies of solar activity.
Barlyaeva, Tatiana   +4 more
core   +2 more sources

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