Birth places of extreme ultraviolet waves driven by impingement of solar jets upon coronal loops

Abstract

Solar extreme ultraviolet (EUV) waves are large-scale propagating disturbances in the corona. It is generally believed that the vital key for the formation of EUV waves is the rapid expansion of the loops that overlie erupting cores in solar eruptions, such as coronal mass ejections (CMEs) and solar jets. However, the details of the interaction between the erupting cores and overlying loops are not clear, because that the overlying loops are always instantly opened after the energetic eruptions. Here, we present three typical jet-driven EUV waves without CME to study the interaction between the jets and the overlying loops that remained closed during the events. All three jets emanated from magnetic flux cancelation sites in source regions. Interestingly, after the interactions between jets and overlying loops, three EUV waves respectively formed ahead of the top, the near end (close to the jet source), and the far (another) end of the overlying loops. According to the magnetic field distribution of the loops extrapolated from Potential Field Source Surface method, it is confirmed that the birth places of three jet-driven EUV waves were around the weakest magnetic field strength part of the overlying loops. We suggest that the jet-driven EUV waves preferentially occur at the weakest part of the overlying loops, and the location can be subject to the magnetic field intensity around the ends of the loops.

References in corpus (10)

• Advances in Observing Various Coronal EUV Waves in the SDO Era and Their Seismological Applications (Invited Review)
• First Evidence of Coexisting EIT Wave and Coronal Moreton Wave from SDO/AIA Observations
• Observation and Modeling of Solar Jets
• Understanding the Physical Nature of Coronal "EIT Waves"
• On a small-scale EUV wave: the driving mechanism and the associated oscillating filament
• A Type II Radio Burst without a Coronal Mass Ejection
• CME-Driven and Flare-Ignited Fast Magnetosonic Waves Successively Detected in a Solar Eruption
• An Extreme Ultraviolet Wave Associated with A Solar Filament Activation
• The initial morphologies of the wavefronts of extreme ultraviolet waves
• Fine Structures of an EUV Wave Event from Multi-Viewpoint Observations

Cited by in corpus (2)

• Recurrent narrow quasi-periodic fast-propagating wave trains excited by the intermittent energy release in the accompanying solar flare
• An extreme ultraviolet wave associated with the possible expansion of sheared arcades