000006321 001__ 6321
000006321 005__ 20230201160830.0
000006321 037__ $$aPOSTER-2023-0028
000006321 100__ $$aMandal, S.
000006321 245__ $$aA highly dynamic small-scale jet in a polar coronal hole
000006321 260__ $$c2022
000006321 269__ $$c2022-09-12
000006321 520__ $$aIn this talk, I will present an observational study of the plasma dynamics at the base of a solar coronal jet, using high resolution extreme ultraviolet imaging data taken by the Extreme Ultraviolet Imager on board Solar Orbiter, and by the Atmospheric Imaging Assembly on board Solar Dynamics Observatory. We observed multiple plasma ejection events over a period of ∼1 hour from a dome-like base that is ca. 4 Mm wide and is embedded in a polar coronal hole. Within the dome below the jet spire, multiple plasma blobs with sizes around 1–2 Mm propagate upwards to dome apex with speeds of the order of the sound speed (ca. 120 km s−1 ). Upon reaching the apex, some of these blobs initiate flows with similar speeds towards the other footpoint of the dome. At the same time, high speed supersonic outflows (∼230 km s−1) are detected along the jet spire. These outflows as well as the intensity near the dome apex appear to be repetitive. Furthermore, during its evolution, the jet undergoes many complex morphological changes including transitions between the standard and blowout type eruption. These new observational results highlight the underlying complexity of the reconnection process that powers these jets and also provide insights into the plasma response when subjected to rapid energy injection.
000006321 594__ $$aSTCE
000006321 6531_ $$aSolar Orbiter
000006321 6531_ $$aEUI
000006321 700__ $$aChitta, L. P. 
000006321 700__ $$aPeter, H.
000006321 700__ $$aSolanki, S. K.
000006321 700__ $$aAznar Cuadrado, R.
000006321 700__ $$aTeriaca, L. 
000006321 700__ $$aSchühle, U.
000006321 700__ $$aBerghmans, D.
000006321 700__ $$aAuchère, F.
000006321 773__ $$tSolar Orbiter 8, Belfast (UK)
000006321 8560_ $$fdavid.berghmans@observatoire.be
000006321 85642 $$ahttps://blogs.qub.ac.uk/so8belfast/
000006321 980__ $$aCPOSTER