Abstract Details

Name: Dr. Bimal Pande
Affiliation: Kumaun University, Nainital
Conference ID: ASI2017_1322
Title : Multiwavelength Analysis of a typical prominence with helical twisting associated with a CME
Authors and Co-Authors : Dr. Bimal Pande Dr.Seema Pande, Dr.Neeraj Singh Bankoti, Kumaun University Nainital
Abstract Type : Oral
Abstract Category : Sun and the Solar System
Abstract : We present the multi wavelength observation of the eruption of a quiescent filament situated at northern hemisphere on 13 June, 2010 due to the activation of helical twist flux tube. The activation of helical flux tube could be the most likely signature of the kink instability that may cause the filament eruption. The event was observed by Mouna Loa Solar Observatory, BBSO, CAO, ARIES, Nainital in Hα, SOHO/EIT, SWAP on board PROBA2, Nobiyama Radio Observatory in 17 GHz and by STEREO A/B. The filament starts to rise slowly ( ̴ 3.5 km/s, the speed of filament goes up to ~75km/s in the acceleration phase), rotates in anticlockwise direction and becomes kink structure which indicates the transfer of twist to writhe. The filament eruption was associated with slow CME ( ̴ 400 km/s) observed by LASCO. There is no signature of flare/reconnection during the eruption. We conclude that the injection of the twist in the magnetic field system causes the eruption of the filament which further triggers the slow CME.