Abstract Details
| Name: Kanan Virkar Affiliation: Indian Institute of astrophysics Conference ID: ASI2025_133 Title : Probing primordial physics signatures in 21 cm signal using morphological statistics Authors and Co-Authors : Kanan Virkar 1 , Pravabati Chingangbam 1 Abstract Type : Poster Abstract Category : Galaxies and Cosmology Abstract : 21 cm signal from the cosmic dawn and epoch of reionization, when detected, will provide information about the primordial universe and the physical processes that took place during this time period, such as formation of the first stars and ionizing sources, the rate of clustering of matter to form galaxies and subsequent structures. Using simulated 21 cm signal in this redshift range using the publicly available 21cmFAST code we probe the signatures of primordial physics on this epoch by using morphological statistics, namely, Minkowski functionals, Minkowski tensors and Betti numbers. Compared to the traditional power spectrum these statistics contain additional information since they are higher order statistics. In particular we study the signatures of a phase of particle production during inflation on the 21 cm signal. |