| Name: | Suvedha Naik |
| Affiliation: | Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education, Manipal, Udupi, Karnataka, |
| Conference ID : | ASI2024_227 |
| Title : | Probing Primordial Features and the Epoch of Reionization: A Forecast from SKA |
| Authors : | Suvedha Suresh Naik1, Kazuyuki Furuuchi1, Pravabati Chingangbam2 |
| Authors Affiliation: | 1 Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education, Dr. T.M.A. Pai Planetarium Building, Manipal 576 104, Karnataka, India
2 Indian Institute of Astrophysics, Koramangala II Block, Bangalore 560 034, India |
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | The nearly scale-invariant power spectrum assumed in the concordance ΛCDM model is consistent with the cosmological observations so far. Nevertheless, deviations from this nearly scale-invariance, as observed in the Cosmic Microwave Background (CMB) radiations, may suggest the presence of "primordial features" in the power spectrum. Several types of primordial features motivated by a variety of inflationary scenarios have been discussed in the literature. In this talk, the signatures of primordial features in one of the major upcoming cosmological observations, the redshifted 21 cm signal, will be explored. The significance of the study in understanding the physics of the early universe will be highlighted. The discussion will encompass forecasted constraints on the Epoch of Reionization and primordial features, with particular attention to the sensitivity of SKA-Low. Furthermore, the degeneracy between parameters of the EoR and inflationary models and strategies to disentangle them will be discussed.
(Ref: Suvedha Suresh Naik, P. Chingangbam, K.Furuuchi, JCAP04(2023)058) |
