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astro-ph.CO2025
Enhancing the detectability of ionized Regions during the Epoch of Reionization
Rutvik Ashish Mahajan, Raghunath Ghara, Nishant Pradeep Deo +1
We present an improved matched filter method for detecting large ionized regions in 21 cm observations of the Epoch of Reionization. In addition to detection, the method constrains…
astro-ph.CO2025★ 1 cited
The Effect of Large Optical Depths on the Non-Gaussian 21-cm signal from Cosmic Dawn
Iffat Nasreen, Kanan K. Datta, Abinash K. Shaw +6
During the Cosmic Dawn (CD), the HI 21-cm optical depth ( ) in the intergalactic medium can become significantly large. Consequently, the second and higher-order terms of ap…