The initial trajectories of eruptive solar prominences

• Published in: Astronomy reports Vol. 60; no. 3; pp. 356 - 365
• Main Author: Filippov, B. P.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-03-2016; Springer Nature B.V
• Subjects: Approximation; Astronomy; Corona; Coronal mass ejection; Magnetic fields; Mathematical analysis; Observations and Techniques; Physics; Physics and Astronomy; Prominences; Segments; Solar magnetic field; Solar physics; Sun; Trajectories; Astronomy Report; Solar Dynamics Observatory; Coronal Mass Ejection; Solar Phys; Neutral Surface
• ISSN: 1063-7729; 1562-6881
• DOI: 10.1134/S1063772916030057

Trajectories of eruptive prominences are compared with the shapes of coronal neutral surfaces calculated in a potential approximation using photospheric measurements. Space-based Solar Dymamics Observatory and STEREO observations carried out at different viewing angles enable a precise determination of a prominence’s position at successive times during its eruption. In the initial segments of their trajectories, eruptive prominences move along neutral surfaces (
B
r
= 0) of the potential coronal magnetic field. This can be used to predict the directions of subsequent coronal mass ejections and to estimate their geoefficiency.