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Application of the Chromospheric Magnetograph to Active Regions

Zirin, H. (1971) Application of the Chromospheric Magnetograph to Active Regions. In: Solar Magnetic Fields. International Astronomical Union Symposium (IAUS). No.43. Springer Netherlands , Dordrecht, pp. 237-242. ISBN 9789401031196. https://resolver.caltech.edu/CaltechAUTHORS:20201013-155619681

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Abstract

We show how to determine the magnetic field structure in active regions from the Ha 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.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-94-010-3117-2_31DOIArticle
Additional Information:© International Astronomical Union 1971. I am indebted to A. Bhatnagar and J. Adkins for magnetograms, and to Peter Foukal for numerous discussions. This work was supported by NASA and by the Atmospheric Sciences section of the NSF.
Funders:
Funding AgencyGrant Number
NASAUNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:Active Region; Sunspot Group; Magnetic Field Structure; Spot Group; Magnetic Symmetry
Series Name:International Astronomical Union Symposium (IAUS)
Issue or Number:43
DOI:10.1007/978-94-010-3117-2_31
Record Number:CaltechAUTHORS:20201013-155619681
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201013-155619681
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106049
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:14 Oct 2020 14:35
Last Modified:16 Nov 2021 18:49

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