Alpha: A Constant That Is Not a Constant?

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book , Article , Preprint , Other literature type 10 Feb 2006Embargo end date: 01 Jul 2002 English Publisher:Springer Science and Business Media LLC

Authors: Fiorentini, G.; Ricci, B.;

doi: 10.1007/10857580_14 , 10.48550/arxiv.astro-ph/0207390

arXiv: astro-ph/0207390

Alpha: A Constant That Is Not a Constant?

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Abstract

We review the observational information on the constancy of the fine structure constant alpha. We find that small improvements on the measurement of ^{187}Re lifetime can provide significant progress in exploring the range of variability suggested by QSO data. We also discuss the effects of a time varying alpha on stellar structure and evolution. We find that radioactive dating of ancient stars can offer a new observational window.

9 pages with 3 ps figures included, to appear on the Proc. of ESO-CERN-ESA Symposium on Astronomy, Cosmology and Fundamental Physics, Garching bei Munchen, Germany March 4-7, 2002

Related Organizations

University of Ferrara
Italy

Keywords

Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics

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