Effect of radiation-like solid on CMB anisotropies

Abstract

We compute the CMB angular power spectrum in the presence of the radiation-like solid with the same pressure to energy density ratio as for the radiation but with nonzero shear modulus. The effect can be observable not only for large-angle anisotropies as shown by Balek and Škovran [2015] but also for very small-angle ones.

7 pages, 1 figure, conference: Week of Doctoral Students 2016, Prague

References in corpus (2)

• Quantization of Perturbations in an Inflating Elastic Solid
• Cosmological perturbations in the presence of a solid with positive pressure