Hostname: page-component-5c6d5d7d68-sv6ng Total loading time: 0 Render date: 2024-08-31T23:18:53.316Z Has data issue: false hasContentIssue false
  • English
  • Français

Application of the Chromospheric Magnetograph to Active Regions

Published online by Cambridge University Press:  14 August 2015

H. Zirin
H. Zirin*
Affiliation:
Hale Observatories, Carnegie Institution of Washington, California Institute of Technology, Pasadena, Calif., U.S.A.

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.

We show how to determine the magnetic field structure in active regions from the Hα morphology. We also show the role of the EFR (emerging flux region) as a bipolar region of velocity downflow. Finally, we point out that since all new magnetic flux emerges in strictly bipolar form, complex spot groups must result from surface interaction, hence most of the solar surface field may be produced on the surface.

Type
Part III: Observations of Sunspot and Active Region Magnetic Fields
Information
Symposium - International Astronomical Union , Volume 43: Solar Magnetic Fields , 1971 , pp. 237 - 242
Copyright
Copyright © Reidel 1971 

References

Bruzek, A.: 1967, in Kiepenheuer, K. O. (ed.), ‘Structure and Development of Solar Active Regions’, IAU Symp. 35, 293.Google Scholar
Roberts, P. R.: 1969, , California Institute of Technology.Google Scholar
Veeder, G. and Zirin, H.: 1970, Solar Phys. 12, 391.CrossRefGoogle Scholar
Weart, S. and Zirin, H.: 1969, Publ. Astron. Soc. Pacific , 81, 480.CrossRefGoogle Scholar
Zirin, H.: 1970, Paper presented to Royal Society Special Discussion on Solar Studies.Google Scholar