Photoionized O VI absorbers toward the bright QSO HE 0515-4414 ?

  title={Photoionized O VI absorbers toward the bright QSO HE 0515-4414 ?},
  author={Sergei A. Levshakov and Irina I. Agafonova and Dieter Reimers and Robert A. Baade},
  journal={Astronomy and Astrophysics},
We report on detailed Monte Carlo inversion analysis of five $\ion{O}{vi}$ systems from the spectrum of the bright quasar HE 0515–4414 ($z_{\rm em}\,$= 1.71). The associated system at $z_{\rm abs}\,$= 1.697 with the neutral hydrogen column density N ($\ion{H}{i}$) $= 4.4\times10^{13}$ cm -2 shows pronounced absorption from highly ionized transitions of $\ion{C}{iii}$, $\ion{C}{iv}$, $\ion{N}{v}$, $\ion{O}{vi}$, $\ion{Si}{iv}$, and probably $\ion{S}{vi}$. We found that only a power law type… Expand
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