54 citations · 77 across the 14 of their papers we have counts for
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Probing the small scale structure of the Inter-Galactic Medium with ESPRESSO: spectroscopy of the lensed QSO UM673
Stefano Cristiani, Guido Cupani, Andrea Trost +20
The gravitationally lensed quasar J014516.6-094517 at z=2.719 has been observed with the ESPRESSO instrument at the ESO VLT to obtain high-fidelity spectra of the two images A and…
Fundamental physics with ESPRESSO: a new determination of the D/H ratio towards PKS1937-101
Francesco Guarneri, Luca Pasquini, Valentina D'Odorico +19
Primordial abundances of light elements are sensitive to the physics of the early Universe and can directly constrain cosmological quantities, such as the baryon-to-photon ratio $η…
Fine structure constant measurements in quasar absorption systems
Dinko Milaković
Detecting any evolution of dimensionless in the ratios of physical quantities, such as the fine structure constant, would prove that the Weak Equivalence Principle is violated and…
Methods for quasar absorption system measurements of the fine structure constant in the 2020s and beyond
Dinko Milaković, Chung-Chi Lee, Paolo Molaro +1
This article reviews the two major recent developments that significantly improved cosmological measurements of fundamental constants derived from high resolution quasar spectrosco…
Fundamental Physics with ESPRESSO, Constraining a simple parametrisation for varying
Vitor da Fonseca, Tiago Barreiro, Nelson J. Nunes +24
The spectrograph ESPRESSO recently obtained a limit on the variation of the fine-structure constant, , through measurements along the line of sight of a bright quasar with a pre…
Avoiding bias in measurements of fundamental constants from high resolution quasar spectra
John K. Webb, Chung-Chi Lee, Dinko Milaković
Recent advances in spectroscopic instrumentation and calibration methods dramatically improve the quality of quasar spectra. Supercomputer calculations show that, at high spectral…
Fundamental physics with ESPRESSO: Precise limit on variations in the fine-structure constant towards the bright quasar HE 05154414
Michael T. Murphy, Paolo Molaro, Ana C. O. Leite +40
The strong intervening absorption system at redshift 1.15 towards the very bright quasar HE 05154414 is the most studied absorber for measuring possible cosmological variations…