Results 91 to 100 of about 2,286 (221)

Topological structure of the magnetic solar corona

, 2007
The solar corona is a highly complex and active plasma environment, containing many exotic phenomena such as solar flares, coronal mass ejections, prominences, coronal loops, and bright points.
Maclean, Rhona Claire
core  

Gravitational steady states of solar coronal loops

Physics of Plasmas, 2017
Coronal loops on the surface of the sun appear to consist of curved, plasma-confining magnetic flux tubes or “ropes,” anchored at both ends in the photosphere. Toroidal loops carrying current are inherently unstable to expansion in the major radius due to toroidal-curvature-induced imbalances in the magnetic and plasma pressures.
Linda E. Sugiyama, M. Asgari-Targhi
openaire   +2 more sources

Solar active regions: SOHO/CDS and TRACE observations of quiescent coronal loops

, 2003
This study focuses on the diagnostic capabilities of the TRACE and SOHO-CDS instruments to describe the physical characteristics of quiescent solar active regions.
G. Del Zanna, Del Zanna, G, H. E. Mason, Mason, HE   +3 more
core   +1 more source

Structure of solar coronal loops: from miniature to large-scale [PDF]

, 2013
Aims. We use new data from the High-resolution Coronal Imager (Hi-C) with its unprecedented spatial resolution of the solar corona to investigate the structure of coronal loops down to 0.2′′. Methods. During a rocket flight, Hi-C provided images
J. W. Cirtain, Cirtain, J. W., S. Bingert, C. de Forest, Peter, H., DeForest, C., Korreck, K. E., Bingert, Sven, K. Kobayashi, Klimchuk, J. A., Cirtain, J., K. E. Korreck, Kobayashi, K., Korreck, K., J. A. Klimchuk, A. R. Winebarger, de Forest, C., H. Peter, Golub, L., L. Golub, Bingert, S., Klimchuk, J., Winebarger, A. R., Winebarger, A.   +23 more
core   +1 more source

Disentangling Thermal and Abundance Characteristics in a Solar Flare Using SDO/AIA, Hinode/XRT, and MinXSS-1 Observations

The Astrophysical Journal
We investigate the thermal properties of a solar flare by the observations of the soft X-ray Telescope on board Hinode and the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory. Our analysis reveals a tenuous but hot plasma cloud
Xiaoyan Xie, Anna Chen, Crisel Suarez, Katharine K. Reeves, Soumya Roy, Christopher S. Moore, Nishu Karna, Joy Velasquez   +7 more
doaj   +1 more source

Tearing modes in solar coronal loops

The Astrophysical Journal, 1990
It is shown that solar coronal-like magnetic loops, that is loops emerging from and reentering heavy plasma, are unstable to tearing modes. In particular, the previously made assumption of line tying to the heavy plasma, resulting in stabilization, is shown to be inapplicable because the growth rate is sub-Alfvenic in the entire loop, including the ...
openaire   +1 more source

Current sheets in the solar corona : formation, fragmentation and heating

, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core  

On the Intermittency of Hot Plasma Loops in the Solar Corona

The Astrophysical Journal
A recent analysis has suggested that the heating of plasma loops in the solar corona depends not just on the Poynting flux but also on processes yet to be identified.
Philip G. Judge, N. Paul M. Kuin
doaj   +1 more source

Asymmetric twisting of coronal loops [PDF]

The bright solar corona entirely consists of closed magnetic loops rooted in the photosphere. Photospheric motions are important drivers of magnetic stressing which eventually leads to energy release into heat.
Antonino Petralia, Gabriele Cozzo, Fabio Reale, Paolo Pagano   +3 more
core  

Propagation and damping of MHD waves in the solar atmosphere

, 2015
Quasi-periodic disturbances have been observed in the outer solar atmosphere for many years. Although first interpreted as upflows (Schrijver et al.
Kiddie, Greg
core