Samir Choudhuri, Somnath Bharadwaj, Sk. Saiyad Ali, Nirupam Roy, H. T. Intema, Abhik Ghosh
Abstract:Characterizing the diffuse Galactic synchrotron emission (DGSE) at arcminute angular scales is needed to remove this foregrounds in cosmological 21-cm measurements. Here, we present the angular power spectrum (C ) measurement of the diffuse Galactic synchrotron emission using two fields observed by the TIFR GMRT Sky Survey (TGSS). We apply 2D Tapered Gridded Estimator (TGE) to estimate the C from the visibilities. We find that the residual data after subtracting the point sources is likely dominated by the dif…
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