Hostname: page-component-5c6d5d7d68-pkt8n Total loading time: 0 Render date: 2024-08-06T20:03:02.227Z Has data issue: false hasContentIssue false

The Most Important Origin of Twist and Tilt of Magnetic Fields in Solar Active Regions

Published online by Cambridge University Press:  13 May 2016

L. Tian
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing 100012, China
H. Zhang
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China
S. Bao
Affiliation:
Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this paper, we show observed properties of tilt and twist of bipolar active regions magnetic fields, using magnetograph data at Huairou, Beijing Astronomical Observatory. We deduce that origin of the twist of magnetic fields is same as that of tilt of bipolar magnetic fields. In another word, they are primarily produced by Coriolis force acting on a rising flux tube through convection zone.

Type
Session III: Active Region Structure and Dynamics
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Babcock, H. W. 1961, ApJ 133, 572.CrossRefGoogle Scholar
Bao, S. D. & Zhang, H. Q. 1998, ApJ 496, L43.CrossRefGoogle Scholar
Bao, S. D. Pevtsov, A. A., Wang, T. J., Zhang, H. Q. 2000, Solar Phys. in press.Google Scholar
Fisher, G. H., Fan, Y. & Howard, R. F. 1995, ApJ 438, 463.CrossRefGoogle Scholar
Hale, G. E., Ellerman, F., Nicholson, S. B. & Joy, A. H. 1919, ApJ 49, 153.CrossRefGoogle Scholar
Howard, R. F. 1991, Solar Phys. 132, 49.CrossRefGoogle Scholar
Longcope, D. W., Fisher, G. H. & Arendt, S. 1996, ApJ 464, 999.CrossRefGoogle Scholar
Longcope, D. W. & Klapper, I. 1997, ApJ 488, 443.CrossRefGoogle Scholar
Longcope, D. W., Fisher, G. H. & Pevtsov, A. A. 1998, ApJ 507, 417.CrossRefGoogle Scholar
Martin, S. F., Billamoria, R. & Tracadas, P. W. 1994, In Solar Surface Magnetism, eds. Rutten, R. J. & Schrijver, C. J. (Dordrecht: Kluwer), 303.CrossRefGoogle Scholar
Pevtsov, A. A., Canfield, R. C. & Metcalf, T. R. 1995, ApJ 440, L109.CrossRefGoogle Scholar
Rust, D. M. & Kumar, A. 1996, ApJ 464, L199.CrossRefGoogle Scholar
Tian, L., Zhang, H., Tong, Y. & Jing, H. 1999, Solar Phys. 189, 305.CrossRefGoogle Scholar
Tian, L., Bao, S., & Zhang, H. 2000a, A&A submitted.Google Scholar
Tian, L., Bao, S., & Zhang, H. 2000b, Solar Phys. submitted.Google Scholar
Wang, J. X., Shi, Z. X., Wang, H. N., , Y. P. 1996, ApJ 456, 861.CrossRefGoogle Scholar
Wang, Y. M. & Sheeley, N. R. 1991, ApJ, 375, 761.CrossRefGoogle Scholar