The soft x-ray excess and the big blue bump in quasar

摘要

All outstanding ROSAT data have now been received and analysis is currently underway or completed. Multiwavelength follow-up (optical spectrophotometry, optical imaging, infra-red photometry and ultraviolet spectrophotometry) of these targets is also nearing completion. The remaining observations are expected to occur over the next couple of months and include 1 IUE spectrum, 6 optical spectra and IR and optical photometry of about 20 objects. The data in hand is currently being reduced ready for analysis. The main results are summarized in this report from the papers in which they were first reported.