2001/06/30 by Marco Tucci, Angela Contaldo, S. A. Bonometto +1
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1086/322066
19 pages, 7 figures. Added references. Accepted for publication in ApJ
arxiv created 2001/07/31 · openalex publication_date 2001/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
Using COBE Differential Microwave Radiometer (DMR) 4 yr data, we find a general expression yielding the likelihood distribution in the three-dimensional parameter space spanned by the spectral index n , the spectral amplitude a 10 , and the false-vacuum density parameter Ω Λ . Using such simple expression, the range of possible normalizations within a given likelihood interval from top-likelihood normalization is readily found, with fair approximation, for any model with total density parameter Ω 0 = 1 and assigned n and Ω Λ .