The UVES Large Program for testing fundamental physics I. Bounds on a change inαtowards quasar HE 2217−2818
Year: 2013
Type: article
Abstract: Context. Absorption-line systems detected in quasar spectra can be used to compare the value of the fine-structure constant, α, measured today on Earth with its value in distant galaxies. In recent years, some evidence has emerged of small temporal and also spatial variations in α on cosmological scales. These variations may reach a fractional level of ≈ 10 ppm (parts per million).
Source: Astronomy and Astrophysics
Institutions: Universidade do Porto, Trieste Astronomical Observatory, Centro de Astrofísica da Universidade do Porto, Swinburne University of Technology, Ioffe Institute, Centre National de la Recherche Scientifique, Observatoire de Paris, Galaxies, Etoiles, Physique et Instrumentation, Université Paris Diderot, European Southern Observatory, Saint Petersburg State Electrotechnical University, University of Chile, Institut d'Astrophysique de Paris, Inter-University Centre for Astronomy and Astrophysics, Universität Hamburg, University of Potsdam
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1987305524