21 cm power spectrum in interacting cubic Galileon model

Abstract

We show the detectability of interacting and non-interacting cubic Galileon models from the $\Lambda$CDM model through the 21 cm power spectrum. We show that the interferometric observations like the upcoming SKA1-mid can detect both the interacting and the non-interacting cubic Galileon model from the $\Lambda$CDM model depending on the parameter values.

13 pages, 4 figures, comments are welcome

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• Phantom crossing or dark interaction?
• A comprehensive data-driven odyssey to explore the equation of state of dark energy
• Cosmic curvature on large-scale structures with homogeneous dark energy
• Galileon versus Quintessence: A comparative phase space analysis and late-time cosmic relevance