Abstract Details
| Name: Aishrila Mazumder Affiliation: IIT, Indore Conference ID: ASI2019_149 Title : Epoch of Reionisation with the Square Kilometer Array: Challenges Authors and Co-Authors : Aishrila Mazumder, Arnab Chakraborty, Abhirup Datta Abstract Type : Poster Abstract Category : Extragalactic Astronomy Abstract : One of the key science goals of the upcoming Square Kilometer Array (SKA-1) Low is to detect the redshifted 21-cm signal from the Cosmic Dawn and Epoch of Reionisation(EoR). The major challenge for detecting the HI 21-cm line from Cosmic Dawn, EoR and post-reionization epoch is to mitigate the bright Galactic and extragalactic foregrounds present in the form of diffuse emission as well as compact sources. Considering the huge data volume from anticipated EoR observations with the SKA, it is essential to develop calibration pipelines that would remove compact sources above a predefined flux, to reduce data volume. In this work we investigate the necessary levels of accuracy for such calibration and source removal algorithms which would be used in EoR signal detection. We simulate the effect of known errors and show their effects on power spectrum recovery from EoR. |