- Conference date: 5-9 Oct 1998
- Location: Nantucket, Massachusetts (USA)
We have analyzed the relation between solar wind speeds observed by interplanetary scintillation (IPS) and coronal densities derived from coronagraph observations during the “Whole Sun Month” period in 1996. Since both IPS and coronagraph observations are biased by the effect of line-of-sight integration, tomography techniques are applied to both data sets. For this analysis we made a synoptic map of the solar wind speed at the source surface from the IPS tomography. Each speed region on the source surface was traced to the height of the coronagraph observations along the magnetic field lines calculated from the source surface potential field model. This analysis has obtained clear anti-correlation between the solar wind speed in interplanetary space and electron density at lower coronal regions. We have also obtained the radial profiles of coronal densities for both slow and fast wind flows in the range of We expect that these provide experimental constraints on solar wind acceleration models.
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