The solar oscillations investigation: Michelson Doppler imager

Details The solar oscillations investigation: Michelson Doppler imager The solar oscillations investigation: Michelson Doppler imager

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348....9h&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 9-12

Other

Michelson Interferometers, Photosphere, Satellite-Borne Instruments, Solar Corona, Solar Interior, Solar Magnetic Field, Solar Oscillations, Velocity Measurement, Doppler Effect, European Space Programs, Nasa Space Programs, Remote Sensing, Soho Mission, Solar Wind

Scientific paper

The Solar Oscillations Investigation (SOI) developed the Michelson Doppler Imager (MDI) to investigate the properties of the solar interior using the tools of helioseismology and of the photosphere and corona using more conventional techniques. The fundamental goal is to understand the Sun by determining its structure and observing its dynamics. The basic observables, velocity, intensity, and magnetic field, are computed on board from up to twenty 1024 by 1024 filtergrams made each minute. Subsequent analysis will extend the region to be explored downward into the solar interior and upward into the corona. While the instrument is dedicated to producing an uninterrupted series of helioseismology data, several magnetograms will be made each day and special eight hour campaigns are being developed to address specific scientific questions, some in coordination with other SOHO (Solar and Heliospheric Observatory) instruments.

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