title: Confirmation of the Copernican principle at Gpc radial scale and above from the kinetic Sunyaev-Zel'dovich effect power spectrum.
abstract: The Copernican principle, a cornerstone of modern cosmology, remains largely unproven at the Gpc radial scale and above. Here will show that violations of this type will inevitably cause a first order anisotropic kinetic Sunyaev-Zel'dovich effect. If large scale radial inhomogeneities have an amplitude large enough to explain the "dark energy" phenomena, the induced kinetic Sunyaev-Zel'dovich power spectrum will be much larger than the Atacama Cosmology Telescope and/or South Pole Telescope upper limit. This single test confirms the Copernican principle and rules out the adiabatic void model as a viable alternative to dark energy.
authors.affiliation: Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Nandan Road 80, Shanghai, 200030, China. pjzhang@shao.ac.cn
authors.forename: Pengjie
authors.initials: P
authors.lastname: Zhang
authors.forename: Albert
authors.initials: A
authors.lastname: Stebbins