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20 papers
The ESPRESSO Redshift Drift Experiment III -- The Third Epoch of QSO J052915.80-435152.0
Andrea Trost, Catarina M. J. Marques, S. Cristiani +25
The Sandage-Loeb test probes cosmic expansion directly by measuring the redshift drift in quasar absorption features in a model-independent way. In this series of papers, we have l…
SDSS J102915.14+172927.9: Revisiting the chemical pattern
E. Caffau, P. Bonifacio, L. Monaco +7
Context: The small- to intermediate-mass (), most metal-poor stars that formed in the infancy of the Universe are still shining today in the sky. They are very rare…
Extragalactic 85Rb/87Rb and 6Li/7Li ratios in the Small Magellanic Cloud
P. Molaro, P. Bonifacio, G. Cupani +1
The line of sight toward Sk 143 (AzV 456), an O9.5 Ib star in the Small Magellanic Cloud (SMC), shows significant absorption from neutral atoms and molecules. We report a new study…
Big-Bang Nucleosynthesis
Brian D. Fields, Paolo Molaro, Subir Sarkar
A critical review is given of the current status of cosmological nucleosynthesis. In the framework of the Standard Model with 3 types of relativistic neutrinos, the baryon-to-photo…
The UVES Large Program for Testing Fundamental Physics II: Constraints on a Change in μ Towards Quasar HE 0027-1836
H. Rahmani, M. Wendt, R. Srianand +14
We present an accurate analysis of the H2 absorption lines from the zabs ~ 2.4018 damped Lyα system towards HE 0027-1836 observed with the Very Large Telescope Ultraviolet and Visu…
Limits on the space-time variations of fundamental constants
S. A. Levshakov, C. Henkel, D. Reimers +1
We report on new tests that improve our previous (2009-2010) estimates of the electron-to-proton mass ratio variation, mu = m_e/m_p. Subsequent observations (2011-2013) at the Effe…