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Filter Magnetograph Measurements at Meudon Observatory

Published online by Cambridge University Press:  12 April 2016

Audouin Dollfus  and
Jacques Moity
Audouin Dollfus
Affiliation:
Observatoire de Paris, 92195 Meudon, France

Summary

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We report observational studies of solar active regions n°6150 and n°6850 during cycle 22. Observations were carried out with a tunable monochromatic birefringent filter coupled with a line-shifter and a Stokesmeter as well as with a spectro-magnetograph, both at Meudon Observatory. AR n°6150 is typical of emerging flux regions, while AR n° 6850, with a complex preceding δ-spot, exhibits characteristic configurations of the transverse magnetic field for flaring activity: shear along the neutral line, and curvature coupled with anomalous Evershed mass motions.

Type
Session 3. Techniques of Magnetic Field Measurements
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 199 - 202
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

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