| Name: | SAMIT KUMAR PAL |
| Affiliation: | INDIAN INSTITUTE OF TECHNOLOGY INDORE |
| Conference ID : | ASI2023_197 |
| Title : | The Effect of Earth’s Ionosphere on Epoch Reionization Observations with the radio interferometer |
| Authors : | Samit Kumar Pal, Abhirup Datta, Aishrila Mazumder |
| Mode of Presentation: | Poster |
| Abstract Category : | General Relativity and Cosmology |
| Abstract : | Observation of the redshifted 21 cm signal from Cosmic Dawn and Epoch of Reionization is a promising probe for the early Universe. These observations are made challenging due to the presence of bright foregrounds, radio frequency interference, Earth’s ionosphere, and instrumental systematics. To understand the effect of each of these corruption terms, it is necessary to set up an end-to-end pipeline to deal with synthetic radio observation. We have done the same and studied the effects of antenna-based gain errors and position errors in our previous publications. Here, we use simulations to comprehend and quantify the effect of Earth’s ionosphere on radio interferometric observations at these low frequencies with the help of SKA1-Low. We study the ionospheric effect on the foreground removal and redshifted 21 cm signal extraction. Here, we present the initial results from simulations involving a static ionospheric model for the entire observing time. |
