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Session 37 - First Results from the Solar and Heliospheric Observatory (SOHO).
Display session, Tuesday, June 11
The SOHO Ultraviolet Coronagraph Spectrometer (UVCS/SOHO) observed polar plumes at the south polar coronal hole on 7 March 1996. Observations were made in H I Ly-alpha, Ly-beta and O VI 103.2 and 103.7 nm. Heliocentric heights from 1.5 to 3.2 R_\sun were observed. In addition, HI Ly-alpha observations with 60 sec time resolution were obtained at a heliocentric height of 1.6 solar radii. The polar plumes are clearly distinguishable in both H I Ly-alpha and O VI. These measurements were made in coordination with time resolved magnetograms by the Michelson Doppler Imager (MDI) and time resolved XUV images by the Extreme-Ultraviolet Imaging Telescope (EIT). This work is supported by NASA Contract NAS5-31250 to the Smithsonian Astrophysical Observatory, by the Italian Space Agency and by Switzerland.
Program listing for Tuesday