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

Multi thermal atmosphere of a mini solar flare during magnetic reconnection observed with IRIS

no code implementations • 29 Oct 2020 • Reetika Joshi, Brigitte Schmieder, Akiko Tei, Guillaume Aulanier, Juraj Lörinčík, Ramesh Chandra, Petr Heinzel

Simultaneously at the same location (jet base), strong emission of several transition region lines (e. g. O IV and Si IV), emission of the Mg II triplet lines of the Balmer-continuum and absorption of identified chromospheric lines in Si IV broad profiles have been observed and analysed.

Solar and Stellar Astrophysics

The role of small-scale surface motions in the transfer of twist to a solar jet from a remote stable flux rope

no code implementations • 16 Aug 2020 • Reetika Joshi, Brigitte Schmieder, Guillaume Aulanier, Véronique Bommier, Ramesh Chandra

Multi-wavelength observations of a twisted jet observed with AIA and IRIS were used to understand how the twist was injected into the jet.

Solar and Stellar Astrophysics