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Self-absorption in solar surge as observed by IRIS

Kayshap, Pradeep; Babu, B. Suresh; Tripathi, Sharad C.

Solar surges are collimated flows of plasma that occur in the periphery of active regions (ARs). The kinematics, physical properties, and triggering mechanisms of a solar surge were studied through imaging and spectroscopic diagnosis. The surge has a typical inverted Y-shape, and it moves with a speed of more than 200 km/s in the transition-region…