000005650 001__ 5650
000005650 005__ 20220131112728.0
000005650 0247_ $$2DOI$$a10.1051/0004-6361/202141683
000005650 037__ $$aSCART-2022-0031
000005650 100__ $$aChitta, L. P. 
000005650 245__ $$aCapturing transient plasma flows and jets in the solar corona
000005650 260__ $$c2021
000005650 520__ $$aIntensity bursts in ultraviolet (UV) to X-ray wavelengths and plasma jets are typical signatures of magnetic reconnection and the associated impulsive heating of the solar atmospheric plasma. To gain new insights into the process, high-cadence observations are required to capture the rapid response of plasma to magnetic reconnection as well as the highly dynamic evolution of jets. Here, we report the first 2 s cadence extreme-UV observations recorded by the 174 Å High Resolution Imager of the Extreme Ultraviolet Imager on board the Solar Orbiter mission. These observations, covering a quiet-Sun coronal region, reveal the onset signatures of magnetic reconnection as localized heating events. These localized sources then exhibit repeated plasma eruptions or jet activity. Our observations show that this spatial morphological change from localized sources to jet activity could occur rapidly on timescales of about 20 s. The jets themselves are intermittent and are produced from the source region on timescales of about 20 s. In the initial phases of these events, plasma jets are observed to exhibit speeds, as inferred from propagating intensity disturbances, in the range of 100 km s−1 to 150 km s−1. These jets then propagate to lengths of about 5 Mm. We discuss examples of bidirectional and unidirectional jet activity observed to have been initiated from the initially localized bursts in the corona. The transient nature of coronal bursts and the associated plasma flows or jets along with their dynamics could provide a benchmark for magnetic reconnection models of coronal bursts and jets.
000005650 594__ $$aSTCE
000005650 6531_ $$aSolar Orbiter
000005650 6531_ $$aEUI
000005650 700__ $$aSolanki, S. K.
000005650 700__ $$aPeter, H.
000005650 700__ $$aAznar Cuadrado, R.
000005650 700__ $$aTeriaca, L. 
000005650 700__ $$aSchühle, U. 
000005650 700__ $$aAuchère, F.  
000005650 700__ $$aBerghmans, D.  
000005650 700__ $$aKraaikamp, E.  
000005650 700__ $$aGissot, S.
000005650 700__ $$aVerbeeck, C. 
000005650 773__ $$nL13$$pAstronomy & Astrophysics$$v656$$y2021
000005650 8560_ $$fdavid.berghmans@observatoire.be
000005650 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2021A%26A...656L..13C/abstract
000005650 905__ $$apublished in
000005650 980__ $$aREFERD