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Super-Flaring Active Region 12673 Has One of the Fastest Magnetic Flux Emergence Ever Observed
Xudong Sun, Aimee A. Norton
The flux emergence rate of AR 12673 is greater than any values reported in the literature of which we are aware.
Electric-Current Neutralization, Magnetic Shear, and Eruptive Activity in Solar Active Regions
Yang Liu, Xudong Sun, Tibor Török +2
The physical conditions that determine whether or not solar active regions (ARs) produce strong flares and coronal mass ejections (CMEs) are not yet well understood. Here we invest…
A Database of Flare Ribbon Properties From Solar Dynamics Observatory I: Reconnection Flux
Maria D. Kazachenko, Benjamin J. Lynch, Brian T. Welsch +1
We present a database of 3137 solar flare ribbon events corresponding to every flare of GOES class C1.0 and greater within 45 degrees from the central meridian, from April 2010 unt…
Investigating the Magnetic Imprints of Major Solar Eruptions with SDO/HMI High-Cadence Vector Magnetograms
Xudong Sun, J. Todd Hoeksema, Yang Liu +2
The solar active region photospheric magnetic field evolves rapidly during major eruptive events, suggesting appreciable feedback from the corona. Previous studies of these "magnet…