1994/03/28 by Scott Dodelson, Lloyd Knox, Edward W. Kolb
Earth and Planetary Sciences · Physics and Astronomy · #Anisotropy #Astronomy #Astrophysics #COSMIC cancer database #Computational physics #Cosmic background radiation #Cosmic microwave background #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements #Inflation (cosmology) #Optics #Physics #Relativity and Gravitational Theory #astro-ph
paper · pdf · doi:10.1103/physrevlett.72.3444
published as Phys.Rev.Lett. 72 (1994) 3444-3447 · (differs from original inclusion of color version of figure 3 and corrected version of figure 2), 11 pages plus 4 figures (attached as a uuencoded postscript file), LaTeX, FNAL--PUB--94/053--A
arxiv created 1994/03/28 · openalex publication_date 1994/05/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Cosmic microwave background (CMB) anisotropy may result from both scalar and tensor perturbations. For a sufficiently narrow range of angular scales, CMB perturbations can be characterized by four parameters. Results from the Cosmic Background Explorer fix one combination of the parameters, reducing the parameters to three. If CMB perturbations are from inflation, there is an additional relation, reducing the parameters to two. An appropriate combination of a medium-angle and a small-angle CMB observation can test the inflation hypothesis because inflation cannot explain a high signal in one experiment and a low signal in the other.