| Abstract : | Cosmic Microwave Background (CMB) is the relic radiation emanating from the early universe. The anisotropies present in the CMB carry very important information about the origin and evolution of the universe at the earliest epochs. The precise measurements of these anisotropies, thus, turn out to be extremely useful in constraining the physics of the early universe. CMB observations till date by COBE, WMAP, and Planck are in great agreement with the ΛCDM cosmological model – the concordance model of the universe. However, there exist some anomalies in the CMB observations which could indicate some new physics or could also be due to unknown systematics. In this work, we explore whether some of these CMB anomalies can be explained by possible modifications to the standard inflationary phase within the framework of scalar-tensor theories. |
