Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample

Details Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample

2004-01-08

arxiv.org/abs/astro-ph/0401094v1

Astron.Astrophys. 417 (2004) 853

Astronomy and Astrophysics

Astrophysics

23 pages; A&A style, 15 figures, accepted

Scientific paper

10.1051/0004-6361:20035701

Development of fundamental physics relies on the constancy of various fundamental quantities such as the fine structure constant. Detecting or constraining the possible time variations of these fundamental physical quantities is an important step toward a complete understanding of basic physics. Here we present the results from a detailed many-multiplet analysis performed using high signal-to-noise ratio, high spectral resolution observations of 23 Mg II systems detected toward 18 QSOs in the redshift range 0.4

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