TY - JOUR
T1 - Discovery of a New Class of Coronal Structures in White Light Eclipse Images
AU - Druckmüller, Miloslav
AU - Habbal, Shadia Rifai
AU - Morgan, Huw
N1 - Druckmüller, M., Habbal, S. R., Morgan, H. (2014). Discovery of a New Class of Coronal Structures in White Light Eclipse Images. Astrophysical Journal, 785(1), [14]
PY - 2014/4/10
Y1 - 2014/4/10
N2 - White light images of the solar corona, taken during total solar eclipses, capture the complex dynamic relationship between the coronal plasma and the magnetic field. This relationship can be recorded on timescales of seconds to minutes, within a few solar radii above the solar surface. Rays, large-scale loops, and streamers, which are the brightest structures in these images, have shaped current models of the coronal magnetic field and solar wind flow. We show in this work how the application of novel image processing techniques to unique high-resolution white light eclipse images reveals the presence of a new class of structures, reminiscent of smoke rings, faint nested expanding loops, expanding bubbles, and twisted helical structures. These features are interpreted as snapshots of the dynamical evolution of instabilities developing at prominence-corona interfaces and propagating outward with the solar wind.
AB - White light images of the solar corona, taken during total solar eclipses, capture the complex dynamic relationship between the coronal plasma and the magnetic field. This relationship can be recorded on timescales of seconds to minutes, within a few solar radii above the solar surface. Rays, large-scale loops, and streamers, which are the brightest structures in these images, have shaped current models of the coronal magnetic field and solar wind flow. We show in this work how the application of novel image processing techniques to unique high-resolution white light eclipse images reveals the presence of a new class of structures, reminiscent of smoke rings, faint nested expanding loops, expanding bubbles, and twisted helical structures. These features are interpreted as snapshots of the dynamical evolution of instabilities developing at prominence-corona interfaces and propagating outward with the solar wind.
KW - eclipses
KW - instabilities
KW - solar wind
KW - sun
KW - corona
KW - sun: filaments
KW - prominences
UR - http://hdl.handle.net/2160/30217
U2 - 10.1088/0004-637X/785/1/14
DO - 10.1088/0004-637X/785/1/14
M3 - Article
SN - 0004-637X
VL - 785
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 14
ER -