A study of the long term evolution in active region upflows

被引：10

作者：

Harra, Louise K. ^{[1
]}

Ugarte-Urra, Ignacio ^{[2
]}

De Rosa, Marc ^{[3
]}

Mandrini, Cristina ^{[4
]}

van Driel-Gesztelyi, Lidia ^{[1
,5
]}

Baker, Deborah ^{[1
]}

Culhane, J. Leonard ^{[1
]}

Demoulin, Pascal ^{[5
]}

机构：

[1] UCL Mullard Space Sci Lab, Holmbury St Mary, Dorking RH5 6NT, Surrey, England

[2] Naval Res Lab, Div Space Sci, Code 7681, Washington, DC 20375 USA

[3] Lockheed Martin Solar & Astrophys Lab, 3251 Hanover St B-252, Palo Alto, CA 94304 USA

[4] UBA CONICET, IAFE, CC 67,Suc 28, RA-1428 Buenos Aires, DF, Argentina

[5] CNRS, Observ Paris, LESIA, UMR 8109, F-92195 Meudon, France

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2017年 / 69卷 / 03期

关键词：

Sun: corona; Sun: evolution; Sun: magnetic fields; HELIOSPHERIC MAGNETIC-FIELDS; EUV IMAGING SPECTROMETER; SOLAR-WIND; OUTFLOWS; PLASMA; HINODE; CONNECTION; TOPOLOGY;

D O I：

10.1093/pasj/psx021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：9

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