Physics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh42b0505d&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SH42B-0505
Physics
7509 Corona, 7524 Magnetic Fields, 7594 Instruments And Techniques
Scientific paper
The Coronal Multi-channel Polarimeter (CoMP) is a filter-based polarimeter designed to provide quantitative measurements of magnetic fields in the solar corona. It will measure the Stokes parameters at the 1074.7 and 1079.8 FeXIII coronal emission lines (1.67 x 106 degrees K), and the 1083.0 nm HeI chromospheric line. The CoMP is based on a four stage birefringent filter and is designed such that the corona is imaged in two wavelengths simultaneously. The strength of the line-of-sight component of the coronal magnetic field is inferred from the measured amplitude of the Stokes V profile and an estimate of the plane-of-sky direction is made from the Stokes U/Q ratio. Further, inference of line-of-sight velocities can be made from Stokes I (red and blue wing) amplitudes. Finally, it may be possible to obtain a coronal density diagnostic capability from the ratio of the 1074.7/1079.8 amplitudes. This poster will present the latest test results as well as any preliminary data that have been obtained.
Burkepile Joan
Card Greg
Casini Roberto
Darnell Tony
Judge Philip G.
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