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Spectrometer-Based Magnetographs

Published online by Cambridge University Press:  12 April 2016

Harrison P. Jones
Harrison P. Jones*
Affiliation:
NASA/Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Southwest Solar Station, c/o NSO, PO Box 26732, Tucson, AZ, 85726

Abstract

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The techniques and instrumentation for inferring magnetic fields using a spectrometer or spectrograph rather than a narrowband filter are reviewed. With array detectors and/or Fourier transform spectroscopy, the polarimetric data is acquired over the relevant spectral range strictly simultaneously with no possibility of spatial misregistration. Several recent examples of spectrometer-based magnetographs are discussed and compared, and new observations from the NASA/NSO Spectromagnetograph of magnetic flux, velocity field, continuum intensity, equivalent width, and line depth in active regions and the whole sun are shown.

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. 156 - 165
Copyright
Copyright © Astronomical Society of the Pacific 1993

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