Successive occurrences of quasi-circular ribbon flares in a fan-spine-like configuration involving hyperbolic flux tube

no code implementations • 20 Jan 2021 • Prabir K. Mitra, Bhuwan Joshi

During the interval of the four flares, we observed continuous decay and cancellation of negative polarity flux within the atoll region.

Solar and Stellar Astrophysics

Observations of a prominence eruption and loop contraction

no code implementations • 19 Jan 2021 • Pooja Devi, Pascal Démoulin, Ramesh Chandra, Reetika Joshi, Brigitte Schmieder, Bhuwan Joshi

Rather, this prominence eruption is compatible with an unstable flux rope where the contraction and expansion of the lateral loop is the consequence of a side vortex developing after the flux rope is launched.

Solar and Stellar Astrophysics