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Observational Characteristics of Solar EUV Waves

Joshi, Bhuwan; Chen, P. F.; Awasthi, Arun Kumar +4 more

Extreme-ultraviolet (EUV) waves are one of the large-scale phenomena on the Sun. They are defined as large propagating fronts in the low corona with speeds ranging from a few tens km s‑1 to several 1000 km s‑1. They are often associated with solar filament eruptions, flares, and/or coronal mass ejections (CMEs). EUV waves exhibit various features,…

Prolonged and Extremely Non-radial Solar Wind Flows

Fujiki, Ken'ichi; Chakrabarty, Dibyendu; Rout, Diptiranjan +3 more

We present a study of three highly non-radial solar wind events in which the azimuthal solar wind flow angle exceeds 6° for one day or more. None of the events are associated with coronal mass ejections and co-rotating interaction regions observed at 1 AU. For all events, the solar wind outflows at 1 AU exhibit low velocity and density. Based on t…