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Overview of the Solar Ultraviolet Magnetograph InvestigationTraditional magnetographs measure the solar magnetic field at the visible "surface" of the Sun, the photosphere. The Solar Ultraviolet Magnetograph Investigation (SUMI) is a design study for an instrument to measure the solar magnetic field higher in the atmosphere, in the upper chromosphere and in the transition region at the base of the corona. The magnetic pressure at these levels is much stronger than the gas pressure (in contrast to the situation at the photosphere), and so the field is much more dynamic. Observations in this region will significantly improve our understanding of the physical processes driving flares and heating in the Sun's upper atmosphere. The instrument will incorporate new technologies to achieve the polarization efficiencies required to isolate the magnetic lines (Civ at 155nm and MgII at 280nm) to be observed in the UV. We describe the scientific goals, the SUMI baseline design and the optical components that are being developed for a sounding rocket program.
Document ID
20000038727
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
West, Edward A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Porter, Jason G.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Davis, John M.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Gary, G. A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Spann, James F., Jr.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Solar Physics
Meeting Information
Meeting: Instrumentation for UV/EUV for Astronomy and Solar Missions
Location: San Diego, CA
Country: United States
Start Date: July 30, 2000
End Date: August 4, 2000
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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