Instrumental Calibration for Observations of Redshifted 21-cm Signal from Neutral Hydrogen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate the calibration requirements for high dynamic range observations in radio interferometric experiments. Particularly, we access the requirement of the time-dependent instrumental gain calibration for observations of faint diffused emission in the presence of compact and bright diffused sources in the sky. This is particularly important for the observation of the redshifted 21-cm signal from the neutral hydrogen at different stages of the evolution of the universe. Our results suggests an order of magnitude better calibration compared to what is achieved at present is required to estimate the power spectrum of the redshifted 21-cm signal.
Original languageEnglish
Title of host publication2020 URSI Regional Conference on Radio Science, URSI-RCRS 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages3
ISBN (Electronic)9789082598780, 9781728155715
DOIs
Publication statusPublished - 11 Jun 2020
Event2020 URSI Regional Conference on Radio Science, URSI-RCRS 2020 - Varanasi, India
Duration: 12 Feb 202014 Feb 2020

Publication series

Name2020 URSI Regional Conference on Radio Science, URSI-RCRS 2020 - Proceedings

Conference

Conference2020 URSI Regional Conference on Radio Science, URSI-RCRS 2020
Country/TerritoryIndia
CityVaranasi
Period12/02/2014/02/20

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