136 citations · 287 across the 7 of their papers we have counts for
3 papers · 1 filter
Fundamental constants and high resolution spectroscopy
P. Bonifacio, H. Rahmani, J. B. Whitmore +14
Absorption-line systems detected in high resolution quasar spectra can be used to compare the value of dimensionless fundamental constants such as the fine-structure constant, alph…
Metals in the IGM approaching the re-ionization epoch: results from X-shooter at the VLT
V. D'Odorico, G. Cupani, S. Cristiani +15
We present the results of observations taken with the X-shooter spectrograph devoted to the study of quasars at z ~ 6. This paper focuses on the properties of metals at high redshi…
Calibration issues in estimating variability of the fine structure constant (alpha) with cosmic time
Miriam Centurión, Paolo Molaro, Sergei Levshakov
Laser Comb Wavelength calibration shows that the ThAr one is locally unreliable with possible deviations of up to 100 m/s within one order range, while delivering an overall 1 m/s…