Towards the UVCS Coronal Hole Atlas for Solar Cycle 23: The Data

Details Towards the UVCS Coronal Hole Atlas for Solar Cycle 23: The Data Towards the UVCS Coronal Hole Atlas for Solar Cycle 23: The Data

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.3005m&link_type=abstract

American Astronomical Society Meeting 210, #30.05; Bulletin of the American Astronomical Society, Vol. 39, p.143

Astronomy and Astrophysics

Astrophysics

Scientific paper

We have measured with the SOHO Ultraviolet Coronagraph Spectrometer (UVCS) the physical properties of over 165 large coronal holes that produced a variety of high-speed solar wind conditions at 1 AU. This data set includes observations of coronal holes of different sizes and latitudes having a range of magnetic field properties.
We will present measured parameters (intensities, line widths) for protons and oxygen ions, as well as electron density as constrained by polarization brightness (pB), for the coronal holes observed from the last solar minimum in 1996 to the present. We will also present selected portions of in-situ solar wind data that are matched, where possible, to source regions in the corona, which have been characterized by UVCS.
The UVCS atlas of coronal holes will provide information about the H I Lyman alpha and O VI line profiles in the extended corona. The atlas will be made available in electronic format, with machine readable tables, as a supplement to a leading archival journal.
This work is supported by NASA under Grants NNX06AG95G and NNG06GI88G to the Smithsonian Astrophysical Observatory, by the Italian Space Agency, and by PRODEX (Swiss contribution).

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