2008/08/01 by Roland de Putter, Eric V. Linder, Eric V Linder · 5 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1088/1475-7516/2008/10/042
published as JCAP 0810 (2008) 042 · 9 pages, 10 figures
arxiv created 2008/08/01 · openalex publication_date 2008/10/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
Exploring the diversity of dark energy dynamics, we discover a calibration relation, a uniform stretching of the amplitude of the equation of state time variation with scale factor. This defines homogeneous families of dark energy physics. The calibration factor has a close relation to the standard time variation parameter w a , and we show that the new, calibrated w a describes observables, i.e. distance and Hubble parameter as a function of redshift, typically to an accuracy level of 10 −3 . We discuss implications for figures of merit for dark energy science programs.