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The Tracking Tapered Gridded Estimator for the 21-cm power spectrum from the Murchison Widefield Array (MWA) drift scan observations -- III. Improved upper limits at from multiple pointings
Shouvik Sarkar, Khandakar Md Asif Elahi, Samir Choudhuri +5
We analyze zenith-pointing Murchison Widefield Array (MWA) drift scan observations covering with 1…
Simulated Predictions for HI at with the Ooty Wide Field Array (OWFA) -- II: Foreground Avoidance
Suman Chatterjee, Somnath Bharadwaj, Visweshwar Ram Marthi
Considering the upcoming OWFA, we use simulations of the foregrounds and the HI 21-cm intensity mapping signal to identify the modes where th…
A Spherical Harmonic Analysis of the Ooty Wide Field Array (OWFA) Visibility Signal
Suman Chatterjee, Somnath Bharadwaj
Considering redshifted -cm intensity mapping with the upcoming OWFA whose field of view subtends in the N-S direction, we present a formalism which relates th…
On the Prospects of Measuring the Cosmic Dawn 21-cm Power Spectrum using the Upgraded Giant Meterwave Radio Telescope (uGMRT)
Suman Chatterjee, Somnath Bharadwaj
A recent observation by the EDGES collaboration shows a strong absorption signal in the global 21-cm spectrum from around a redshift of . This absorption is stronger than t…
Simulating the z = 3.35 HI 21-cm visibility signal for the Ooty Wide Field Array(OWFA)
Suman Chatterjee, S. Bharadwaj, V. R. Marthi
The upcoming Ooty Wide Field Array (OWFA) will operate at which corresponds to the redshifted 21-cm signal from neutral hydrogen (HI) at z = 3.35. We present t…