Time variation of the fine structure constant in the early universe and the Bekenstein model

2007/07/31 by M. E. Mosquera, Mercedes E. Mosquera, Claudia G. Scóccola +4 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #astro-ph #gr-qc #hep-ph #physics.atom-ph

paper · pdf · doi:10.1051/0004-6361:20078605

published as Astron.Astrophys. 478 (2008) 675 · 13 pages, 8 figures,version accepted to be published in Astronomy and Astrophysics

arxiv created 2007/11/08 · openalex publication_date 2007/12/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Aims.We calculate the bounds on the variation in the fine structure constant at the time of primordial nucleosynthesis and at the time of neutral hydrogen formation. We used these bounds and other bounds from the late universe to test the Bekenstein model.

Citations

• Behavior of varying-alpha cosmologies
• New BBN limits on physics beyond the standard model from 4He

Cited by

• Early universe constraints on time variation of fundamental constants
• Time Variation of the Electron Mass in the Early Universe and the Barrow‐Magueijo Model