88 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Open University of IsraelIL5 papers
- AlbaNovaSE4 papers
- Max Planck Institute for AstrophysicsDE4 papers
- Netherlands Institute for Radio AstronomyNL4 papers
- Stockholm UniversitySE4 papers
- Technion – Israel Institute of TechnologyIL4 papers
- University of GroningenNL4 papers
- University of SussexGB4 papers
- University of ZurichCH4 papers
- Arizona State UniversityUS3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Indian Institute of Technology KharagpurIN3 papers
8 papers
Probing early universe through redshifted 21-cm signal: Modelling and observational challenges
Abinash Kumar Shaw, Arnab Chakraborty, Mohd Kamran +8
The redshifted 21-cm radiation from the atomic hydrogen (HI) provides an excellent direct probe to study the evolution of HI in IGM and thus reveal the nature of the first luminous…
Statistical analysis of the causes of excess variance in the 21 cm signal power spectra obtained with the Low-Frequency Array
H. Gan, L. V. E Koopmans, F. G. Mertens +11
The detection of the 21 cm signal of neutral hydrogen from the Epoch of Reionization (EoR) is challenging due to bright foreground sources, radio frequency interference (RFI), the…
A numerical study of 21-cm signal suppression and noise increase in direction-dependent calibration of LOFAR data
M. Mevius, F. Mertens, L. V. E. Koopmans +14
We investigate systematic effects in direction dependent gain calibration in the context of the Low-Frequency Array (LOFAR) 21-cm Epoch of Reionization (EoR) experiment. The LOFAR…
Demonstrating the Tapered Gridded Estimator (TGE) for the Cosmological HI 21-cm Power Spectrum using GMRT observations
Srijita Pal, Somnath Bharadwaj, Abhik Ghosh +1
We apply the Tapered Gridded Estimator (TGE) for estimating the cosmological 21-cm power spectrum from GMRT observations which corresponds to the neutral hydroge…
Interpreting LOFAR 21-cm signal upper limits at z~9.1 in the context of high-z galaxy and reionisation observations
Bradley Greig, Andrei Mesinger, Léon V. E. Koopmans +11
Using the latest upper limits on the 21-cm power spectrum at from the Low Frequency Array (LOFAR), we explore regions of parameter space which are inconsistent with t…
Tight Constraints on the Excess Radio Background at from LOFAR
R. Mondal, A. Fialkov, C. Fling +13
The ARCADE2 and LWA1 experiments have claimed an excess over the Cosmic Microwave Background (CMB) at low radio frequencies. If the cosmological high-redshift contribution to this…
All sky angular power spectrum: I. Estimating brightness temperature fluctuations using TGSS 150 MHz survey
Samir Choudhuri, Abhik Ghosh, Nirupam Roy +3
Measurements of the Galactic synchrotron emission is relevant for the 21-cm studies from the Epoch of Reionization. The study of the synchrotron emission is also useful to quantify…
On the information entropy of matter-waves in quasi-disorder potentials
Kajal Krishna Dey, Sudipta Das, Golam Ali Sekh
We consider ultracold Bose gases in quasi-random potentials and quantify localization of matter waves by means of Shannon information entropy. We explicitly examine the role of qua…