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A compact Dopplergraph/magnetograph suitable for space-based measurements of solar oscillations and magnetic fieldsA compact Dopplergraph/magnetograph placed in a continuous solar-viewing orbit will allow us to make major advancements in our understanding of solar internal structure and dynamics. An international program is currently being conducted at JPL and Mt. Wilson to develop such an instrument. By combining a unique magneto-optical resonance filter with CID and CCD cameras we have been able to obtain full- and partial-disk Dopplergrams and magnetograms. Time series of the velocity images are converted into k-omega power spectra which show clear- the solar nonradial p-mode oscilations. Magnetograms suitable for studying the long-term evolution of solar active regions have also been obtained with this instrument. A flight instrument based on this concept is being studied for possible inclusion in the SOHO mission.
Document ID
19850047662
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rhodes, E. J., Jr.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Southern California, University Los Angeles, CA, United States)
Cacciani, A.
(Roma, Universita Rome, Italy)
Tomczyk, S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ulrich, R. K.
(California, University Los Angeles, CA, United States)
Blamont, J.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA; CNRS, Service d'Aeronomie, Verrieres-le-Buisson Essonne, France)
Howard, R. F.
(National Solar Observatory, Tucson, AZ; Mount Wilson and Las Campanas Observatories, Pasadena CA, United States)
Dumont, P.
(Southern California, University Los Angeles, CA, United States)
Smith, E. J.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Advances in Space Research
Volume: 4
Issue: 8 19
ISSN: 0273-1177
Subject Category
Spacecraft Instrumentation
Accession Number
85A29813
Funding Number(s)
CONTRACT_GRANT: NAGW-472
CONTRACT_GRANT: NAGW-13
Distribution Limits
Public
Copyright
Other

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