Oxford Helium Enhancement Study (JOP 062)
Lead Investigator:
Carole Jordan, Keith Macpherson, Dept of Theoretical Physics,
Oxford University, UK, Email:kpm@thphys.ox.ac.uk
Team Members:
Richard Harrison (CDS)
Philippe Lemaire (SUMER)
Bob Stern (EIT)
Local Coordinator:
Julia Saba
Technical Summary:
To investigate the systematic behaviour of He I and He II line
fluxes in comparison with atmospheric models determined from
other transition region lines.
Pointing and Target Selection:
- For the Joint CDS/SUMER observations, three locations should be
observed along the central meridian; a quiet region at (or near) Sun
centre, quiet region at a mid-latitude, and the third region near the
limb, to include a coronal hole. The direction away from Sun-centre
(N or S) should be decided to give the best coronal hole coverage.
MDI and EIT to provide details on the overall type of regions studied.
CDS to observe two further quiet regions on solar equator, midway to
limb and near the limb, without SUMER support.
Complete text of proposal.