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19982021
most citedThe UVES Large Program for Testing Fundamental Physics: I Bounds on a change in alpha towards quasar HE 2217-2818

112 citations · 699 across the 27 of their papers we have counts for

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astro-ph2008★ 5 cited

Quasar spectral energy distribution in EUV restored from associated absorbers: indications to the HeII opacity of the quasar accretion disk wind

S. A. Levshakov, I. I. Agafonova, D. Reimers +2

(abridged) Aims. To reconstruct the spectral shape of the quasar ionizing radiation in the extreme-UV range (1Ryd <= E < 10Ryd) from the analysis of narrow absorption lines (NAL) o…