The Helioseismic & Magnetic Imager on the Solar Dynamics Observatory

Details The Helioseismic & Magnetic Imager on the Solar Dynamics Observatory The Helioseismic & Magnetic Imager on the Solar Dynamics Observatory

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.2415h&link_type=abstract

American Astronomical Society Meeting 210, #24.15; Bulletin of the American Astronomical Society, Vol. 39, p.131

Astronomy and Astrophysics

Astronomy

Scientific paper

The HMI investigation will study the origin of solar variability and will characterize and understand the Sun’s interior and the various components of magnetic activity. The HMI instrument is part of the Solar Dynamics Observatory (SDO) mission scheduled for launch in 2008. HMI makes measurements of the motion of the solar photosphere to study solar oscillations and measurements of the polarization in a spectral line to study the Sun's vector magnetic field. HMI will help establish the relationships between the internal dynamics and magnetic activity in order to understand solar variability and its effects, leading to reliable predictive capability, one of the key elements of the Living With a Star (LWS) program.

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