80 citations · 125 across the 9 of their papers we have counts for
10 papers
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…
The Epoch of Reionization 21 cm Bispectrum at from MWA data II: Smooth Component Filtering
Sukhdeep Singh Gill, Khandakar Md Asif Elahi, Somnath Bharadwaj +2
The 21 cm bispectrum (BS) offers a powerful probe of the Epoch of Reionization (EoR), but its observational access is severely hindered by dominant astrophysical foregrounds. Consi…
The EoR 21-cm Bispectrum at from MWA data I: Foregrounds and preliminary upper limits
Sukhdeep Singh Gill, Somnath Bharadwaj, Khandakar Md Asif Elahi +2
We attempt to measure the Epoch of Reionization (EoR) 21-cm bispectrum (BS) using Murchison Widefield Array (MWA) data. We find that $B(k_{1\perp}, k…
A measurement of Galactic synchrotron emission using MWA drift scan observations
Suman Chatterjee, Shouvik Sarkar, Samir Choudhuri +4
Studying the diffuse Galactic synchrotron emission (hereafter, DGSE) at arc-minute angular scale is important to remove the foregrounds for the cosmological 21-cm observations. Sta…
The Tracking Tapered Gridded Estimator for the 21-cm power spectrum from MWA drift scan observations II: The Missing Frequency Channels
Khandakar Md Asif Elahi, Somnath Bharadwaj, Suman Chatterjee +4
Missing frequency channels pose a problem for estimating the redshifted 21-cm power spectrum (PS) from radio-interferometric visibility data. This is parti…
The Tracking Tapered Gridded Estimator for the 21-cm power spectrum from MWA drift scan observations I: Validation and preliminary results
Suman Chatterjee, Khandakar Md Asif Elahi, Somnath Bharadwaj +4
Drift scan observations provide the broad sky coverage and instrumental stability needed to measure the Epoch of Reionization (EoR) 21-cm signal. In such observations, the telescop…
The Tracking Tapered Gridded Estimator (TTGE) for the power spectrum from drift scan observations
Suman Chatterjee, Somnath Bharadwaj, Samir Choudhuri +2
Intensity mapping with the redshifted 21-cm line is an emerging tool in cosmology. Drift scan observations, where the antennas are fixed to the ground and the telescope's pointing…
Extracting the 21 cm EoR signal using MWA drift scan data
Akash Kumar Patwa, Shiv Sethi, K. S. Dwarakanath
The detection of redshifted hyperfine line of neutral hydrogen (HI) is the most promising probe of the Epoch of Reionization (EoR). We report an analysis of 55 hours of Murchison W…
Detecting 21 cm EoR Signal using Drift Scans: Correlation of Time-ordered Visibilities
Akash Kumar Patwa, Shiv Sethi
We present a formalism to extract the EoR HI power spectrum for drift scans using radio interferometers. Our main aim is to determine the coherence time scale of time-ordered visib…
The PHENIX Experiment at RHIC
PHENIX Collaboration, David P. Morrison
The physics emphases of the PHENIX collaboration and the design and current status of the PHENIX detector are discussed. The plan of the collaboration for making the most effective…