2005/12/05 by Joan Solà, Joan Sola
Physics and Astronomy · #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Relativity and Gravitational Theory #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1088/1742-6596/39/1/044
published as J.Phys.Conf.Ser. 39 (2006) 179 · Talk given at TAUP 2005, Zaragoza, Spain, 10-14 Sep 2005
arxiv created 2005/12/05 · openalex publication_date 2006/05/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
The experimental evidence that the equation of state (EOS) of the dark energy (DE) could be evolving with time/redshift (including the possibility that it might behave phantom-like near our time) suggests that there might be dynamical DE fields that could explain this behavior. We propose, instead, that a variable cosmological term (including perhaps a variable Newton's gravitational coupling too) may account in a natural way for all these features.