Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn

Abstract A recent observation points to an excess in the expected 21-cm brightness temperature from cosmic dawn. In this paper, we present an alternative explanation of this phenomenon, an interaction in the dark sector. Interacting dark energy models have been extensively studied recently and there...

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Bibliographic Details
Main Authors: André A. Costa, Ricardo C. G. Landim, Bin Wang, Elcio Abdalla
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-018-6237-7