The UV spectrum of HS 1700+6416. I. Predicting the metal line content of the far UV spectrum

@article{Fechner2006TheUS,
  title={The UV spectrum of HS 1700+6416. I. Predicting the metal line content of the far UV spectrum},
  author={Cora Fechner and Dieter Reimers and Antoinette Songaila and Robert A. Simcoe and Michael Rauch and Wallace L. W. Sargent},
  journal={Astronomy and Astrophysics},
  year={2006},
  volume={455},
  pages={73-90}
}
Aims. In preparation of a study of the $\ion{He}{ii}$/$\ion{H}{i}$ ratio towards the bright QSO HS 1700+6416, we predict the metal line content of the far-UV spectral range by modelling 18 metal absorption line systems with redshifts $0.2 Methods. For that purpose, we investigate the spectral energy distribution of the metagalactic ionizing radiation field. Simple photoionization models based on 8 different shapes of the ionizing background are tested for each system. The adopted energy… 
The UV spectrum of HS 1700+6416 - II. FUSE observations of the He II Lyman alpha forest
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