000006327 001__ 6327
000006327 005__ 20230201163450.0
000006327 037__ $$aCTALK-2023-0061
000006327 100__ $$aHarra, L.
000006327 245__ $$aHigh spatial imaging of coronal upflows in the quiet Sun – sources of solar wind?
000006327 260__ $$c2022
000006327 269__ $$c2022-09-13
000006327 520__ $$aIn previous work, we have determined sources of upflows in the quiet Sun and coronal holes that do not have a strong intensity enhancement such as a jet [see Schwanitz et al., 2021]. These upflows could be particularly important as an additional (and nearly ‘invisible’) source of the solar wind. During the first science perihelion of Solar Orbiter, joint observations were made with the Hinode spacecraft allowing for coronal Doppler velocity measurements. We combined spectroscopic data from Hinode/EIS with imaging data from Solar Orbiter‘s EUV Imager (EUI) high resolutions imagers (with down to 135 km spatial resolution and 5 sec time cadence) and SDO‘s AIA to identify potential sources for the upflow regions. Some of the upflow regions fall on bright points and active loops, which show changes in the magnetic field configuration and small changes in intensity. In contrast to that, a few upflows can be seen on quiet regions, which do not show strong intensity fluctuations or noticeable magnetic field changes. Many upflows region analysed are located next to regions with a gradient in intensity (sometimes increasing and sometimes decreasing). In addition, we combined the data with chromospheric data from the IRIS slitjaw images. We discuss the sources of the upflow, and determine if they fit within categories as small-scale brightenings or eruptions highlighted in our previous paper.
000006327 594__ $$aSTCE
000006327 6531_ $$aSolar Orbiter
000006327 6531_ $$aEUI
000006327 700__ $$aBarczynski, K.
000006327 700__ $$aDavid Berghmans, D.
000006327 700__ $$aManyOtherAuthors, X.
000006327 700__ $$aKraaikamp, E.
000006327 700__ $$aRodriguez, L. 
000006327 700__ $$aVerbeeck, C.
000006327 700__ $$aZhukov, A.
000006327 773__ $$tSolar Orbiter 8, Belfast (UK)
000006327 8560_ $$fdavid.berghmans@observatoire.be
000006327 85642 $$ahttps://blogs.qub.ac.uk/so8belfast/programme/
000006327 906__ $$aContributed
000006327 980__ $$aCTALKCONT