Results 101 to 110 of about 8,180,974 (123)
Dust Plumes Induced by a Time‐Varying Electron Beam
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract We present laboratory results to address dust charging and lofting on the Moon and other airless planetary bodies in response to time‐varying solar wind and ultraviolet (UV) exposure. In these experiments, dust is exposed to an electron beam that varies in beam energy between 40 and 260 eV as a function of time.
A. Cabra, X. Wang, M. Horányi
wiley +1 more source
Solar Filaments Detection using Active Contours Without Edges [PDF]
In this article, an active contours without edges (ACWE)-based algorithm has been proposed for the detection of solar filaments in H-alpha full-disk solar images. The overall algorithm consists of three main steps of image processing. These are image pre-
Pant, Vaibhav, Bandyopadhyay, Sanmoy
core
Astrophysical Journal, 2022 Abstract The separation of a filament and sigmoid is observed during an X1.4 flare on 2012 July 12 in solar active region 11520, but the corresponding change in magnetic field is not clear. We construct a data-constrained magnetohydrodynamic simulation of the filament–sigmoid system with the flux rope insertion method and magnetic flux ...
Tie Liu, Yingna Su, Yang Guo
exaly +3 more sources
Dynamics Evolution of a Solar Active-Region Filament From a Quasi-Static State to Eruption: Rolling Motion, Untwisting Motion, Material Transfer, and Chirality [PDF]
Astrophysical Journal, 2020 Abstract To better understand the magnetic structure and eruptive process of solar filaments, a solar active-region filament (labeled F2) eruption associated with a B-class flare was investigated by using high-resolution Hα data from the 1 m New Vacuum Solar Telescope (NVST), combined with EUV observations of the Solar Dynamics ...
GuoRong Chen, Zhike Xue, Liheng Yang
exaly +3 more sources
A Comparison Study of a Solar Active-Region Eruptive Filament and a Neighboring Non-Eruptive Filament [PDF]
Research in Astronomy and Astrophysics, 2016 11 pages, 4 figures, accepted by ...
Qiang Hu
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
The Pattern of Supergranular in a Solar Active Region and the Formation of Filaments
Astronomy Reports, 2004The formation of filaments in solar bipolar active regions is investigated, giving particular attention to the relationship between this process and the pattern of supergranular convection. SOHO MDI and Kitt Peak magnetograms and Hα filtergrams are used. The large decaying active region NOAA 8525 is considered over the period May 4–7, 1999.
L V Ermakova, V M Grigoryev
exaly +2 more sources
Astrophysical Journal, 2005 This study is an observational search for evidence of prominence-associated magnetic flux ropes at the photospheric level in plage regions away from sunspots. Although there are a few cases of supposed flux rope geometry in the photosphere of complex sunspot regions (notably "δ sunspots"), such cases appear to be fairly rare and therefore do not ...
B W Lites
exaly +2 more sources
Large Solar Energetic Particle Events Associated With Filament Eruptions Outside Active Regions [PDF]
Astrophysical Journal, 2015 40 pages, 10 figures, 5 tables, Accepted for publication in the Astrophysical Journal, March 31 ...
Nat Gopalswamy +2 more
exaly +3 more sources
Small-Scale, Dynamic Bright Blobs in Solar Filaments and Active Regions [PDF]
Astrophysical Journal, 2012 Accepted by ...
L H M Rouppe van der Voort
exaly +3 more sources
Astrophysical Journal, 2017 Abstract The solar active region (AR), NOAA 12192, appeared in 2014 October as the largest AR in 24 years. Here we examine the counterintuitive nature of two diffusion-driven processes in the region: the role of helicity buildup in the formation of a major filament, and the relationship between the effects of supergranular diffusion and ...
Gordon Petrie
exaly +2 more sources