Harra, LK;
Ugarte-Urra, I;
De Rosa, M;
Mandrini, C;
van Driel-Gesztelyi, L;
Baker, D;
Culhane, JL;
(2017)
A study of the long term evolution in active region upflows.
Publications of Astronomical Society of Japan
, 69
(3)
, Article 47. 10.1093/pasj/psx021.
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Abstract
Since their discovery, upflows at the edges of active regions have attracted a lot of interest, primarily as they could potentially contribute to the slow solar wind. One aspect that has not been studied yet is how the long term evolution of active regions impacts the upflows. In this work, we analyze one active region that survives three solar rotations. We track how the flows change with time. We use local and global modeling of the decaying active region to determine how the age of the active region will impact the extent of the open magnetic fields, and then how some of the upflows could become outflows. We finish with a discussion of how these results, set in a broader context, can be further developed with the Solar Orbiter mission.
| Type: | Article |
|---|---|
| Title: | A study of the long term evolution in active region upflows |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/pasj/psx021 |
| Publisher version: | https://doi.org/10.1093/pasj/psx021 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Sun: Corona, Sun: Evolution, Sun: Magnetic Fields, Heliospheric Magnetic-Fields, EUV Imaging Spectrometer, Solar-Wind, Outflows, Plasma, Hinode, Connection, Topology |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1565107 |
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