activity
20042009
most citedA new approach for testing variations of fundamental constants over cosmic epochs using FIR fine-structure lines

44 citations · 175 across the 6 of their papers we have counts for

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Showing 2005Show all

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astro-ph2005

Spectral shape of the UV ionizing background and OVI absorbers at z ~ 1.5 towards HS0747+4259

D. Reimers, I. I. Agafonova, S. A. Levshakov +5

We report on high resolution spectra of the bright QSO HS0747+4259 (zem = 1.90, V = 15.8) observed to search for intermediate redshift OVI absorption systems. The spectra were obta…

astro-ph2005

HE 0141-3932: a bright QSO with an unusual emission line spectrum and associated absorption

D. Reimers, E. Janknecht, C. Fechner +3

HE 0141-3932 (zem = 1.80) is a bright blue radio-quite quasar with an unusually weak Ly-alpha emission line. Large redshift differences (Delta z = 0.05) are observed between high i…