In this paper we investigate the physical parameters of a streamer observed during the Spring 2000 quadrature of SOHO, the Sun and Ulysses. The analysis was carried out using SOHO/CDS and SOHO/SUMER coordinated observations of the low corona. We analysed six days of observations of the same region, deriving electron temperature, density, emission measure and composition. We found full agreement in the results from the two instruments. We conclude that we were observing an omogeneus streamer, with coronal composition and not completely isothermal.
Memorie della Societa Astronomica Italiana
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