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Interplanetary Scintillation Observations of Coronal Mass Ejections
The interplanetary scintillation technique exploits scattering of radiation
from compact radio sources by small-scale density turbulence in the solar
wind plasma. The principal purpose of this talk is to review recent progress
in the study of radial evolution of propagating coronal mass ejections
(CMEs) in the inner heliosphere. A systematic monitoring of scintillation
over a distance range of 0.2 - 1 AU, using about 200 to 300 sources per
day, has detected interesting CMEs with good spatial resolution at different
distances from the sun. These measurements have been used to investigate
the evolution of size and deceleration of speed of moving CMEs. The results
are compared with the near-sun manifestations and observations taken close
to the earth.
Organization: Radio Astronomy Centre (TIFR)
Address: P.O. Box 8
Ooty 643 001
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