Conveners
Session 5
- Chair: Suman Majumdar (IIT Indore)
The HI 21-cm optical depth can be significantly high in regions with dense neutral hydrogen and low spin temperature during CD. Therefore, during this epoch the commonly used equation for calculating HI 21-cm differential brightness temperature considering linear approximation of optical depth tends to overestimate the signal compared to the signal using exact equation. These corrections...
The Cosmic Dawn (CD) and the Epoch of Reionization (EoR) mark pivotal stages in the early evolution of the Universe, occurring within the first billion years after the Big Bang. Despite their importance, the physical properties of the intergalactic medium (IGM) during these epochs remain poorly constrained by observations. Current and forthcoming low-frequency radio experiments, such as EDGES,...