Université de GenèveDépartement de Physique ThéoriqueCAP Genève

CMB sky for an off-center observer in a local void I: framework for forecasts

15. August 2019
Cite as: 
V. Nistane, G. Cusin, M. Kunz, JCAP12(2019)038 [arXiv:1908.05484].

We investigate an alternative (inhomogeneous but isotropic) model of our universe described by Lemaître-Tolman-Bondi (LTB) spacetime metric. For an observer located inside (but away from the center of) the large-scale spherical void, we calculate the amplitude of lensing-like contribution to the CMB temperature anisotropies and the Signal-to-Noise for two particular models with different void modeling parameters.


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