526 citations · 2.1k across the 38 of their papers we have counts for
4 papers · 2 filters
Most precise single redshift bound to the variability of the fine-structure constant
S. A. Levshakov, M. Centurion, P. Molaro +4
Verification of theoretical predictions of an oscillating behavior of the fine-structure constant, alpha, with cosmic time requires high precision measurements at individual redshi…
Most precise single redshift bound to Delta alpha/alpha
S. A. Levshakov, M. Centurion, P. Molaro +4
Verification of theoretical predictions of an oscillating behavior of the fine-structure constant alpha with cosmic time requires high precision Delta alpha/alpha measurements at i…
Spectral energy distribution of the metagalactic ionizing radiation field from QSO absorption spectra
I. I. Agafonova, M. Centurion, S. A. Levshakov +1
A computational procedure is presented to estimate the spectral shape of the ionizing background between 1 and 10 Ryd by analyzing optically thin absorption systems in the spectra…
VLT/UVES shows no cosmological variability of alpha
P. Molaro, M. Centurion, S. D'Odorico +1
The cosmological variability of alpha is probed from individual observations of pairs of FeII lines. This procedure allows a better control of the systematics and avoids the influe…