- Conference date: 17-31 June 2002
- Location: Pisa (Italy)
Coronal and solar wind observations of the same plasma, first observed remotely in the corona and later, in situ, provide the best way to determine the evolution of plasma as it is being accelerated from the corona out to interplanetary distances. We have used this technique to derive solar wind characteristics from the analysis of data acquired by SOHO and Ulysses when the SOHO‐Sun‐Ulysses included angle is 90 degrees: that is, when SOHO, the Sun and Ulysses are in quadrature. We summarize here the results obtained from the study of the December 1998 quadrature, when we focussed on the behavior of slow wind from low‐latitude regions, and anticipate some results from the June 2000 quadrature, which focussed on establishing a relationship between coronal and wind abundances of different elements and whose analysis is in progress. We conclude by illustrating briefly the objectives of future quadrature studies.
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