Large Amplitude Oscillations in Solar Filaments Caused by Solar Jets
- 1Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo, Norway (reetikajoshi.ntl@gmail.com)
- 2Rosseland Centre for Solar Physics, University of Oslo, Department of Physics, Oslo, Norway
- 3Department of Physics, DSB Campus, Kumaun University, Nainital 263-001, India
- 4Universitat de les Illes Balears (UIB), Palma de Mallorca, Spain
- 5Institute of Applied Computing & Community Code (IAC3), UIB, Spain
- 6LESIA, Observatoire de Paris, 5 place Jules Janssen, 92190 Meudon, France
- 7Centre for mathematical Plasma Astrophysics, Dept. of Mathematics, KU Leuven, 3001 Leuven, Belgium
- 8Instituto de Astrofísica de Canarias (IAC), La Laguna, Spain
- 9Universidad de La Laguna, La Laguna, Spain
Large amplitude oscillations (LAO) are often detected in filaments. Their origin has been associated with shock waves or to interaction with eruptions and jets. In this study we present two examples of LAOs due to solar jets interaction with filaments on February 3-5 2015 and March 14 2015. The filament eruption on March 14 was followed by a two step filament eruption along with a CME and become the strong geomagnetic storm of Solar Cycle 24 on 17 March 2015. These LAOs are analysed by using time-distance diagnostics. The detected LAOs have periods of around 60 minutes and are damped after three oscillations. The observations are consistent with the results of a recent developed theoretical model of jet and filament interaction. The jets are associated with very weak flares which did not initiate any EUV wave. The role of waves as trigger of these oscillations can be discarded for these two events.
How to cite: Joshi, R., Luna, M., Schmieder, B., Moreno-Insertis, F., and Chandra, R.: Large Amplitude Oscillations in Solar Filaments Caused by Solar Jets, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5443, https://doi.org/10.5194/egusphere-egu22-5443, 2022.
