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Samir Choudhuri
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Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations
T Adams, JE Aguirre, P Alexander, ZS Ali, R Baartman, Y Balfour, ...
The Astrophysical Journal 945 (2), 124, 2023
1032023
Visibility-based angular power spectrum estimation in low-frequency radio interferometric observations
S Choudhuri, S Bharadwaj, A Ghosh, SS Ali
Monthly Notices of the Royal Astronomical Society 445 (4), 4351-4365, 2014
652014
Imaging the redshifted 21 cm pattern around the first sources during the cosmic dawn using the SKA
R Ghara, TR Choudhury, KK Datta, S Choudhuri
Monthly Notices of the Royal Astronomical Society 464 (2), 2234-2248, 2017
542017
The visibility-based tapered gridded estimator (TGE) for the redshifted 21-cm power spectrum
S Choudhuri, S Bharadwaj, S Chatterjee, SS Ali, N Roy, A Ghosh
Monthly Notices of the Royal Astronomical Society 463 (4), 4093-4107, 2016
492016
Detailed study of ELAIS N1 field with the uGMRT–II. Source properties and spectral variation of foreground power spectrum from 300–500 MHz observations
A Chakraborty, N Roy, A Datta, S Choudhuri, KK Datta, P Dutta, ...
Monthly Notices of the Royal Astronomical Society 490 (1), 243-259, 2019
382019
Tapering the sky response for angular power spectrum estimation from low-frequency radio-interferometric data
S Choudhuri, S Bharadwaj, N Roy, A Ghosh, SS Ali
Monthly Notices of the Royal Astronomical Society 459 (1), 151-156, 2016
362016
Patterns of primary beam non-redundancy in close-packed 21 cm array observations
S Choudhuri, P Bull, H Garsden
Monthly Notices of the Royal Astronomical Society 506 (2), 2066–2088, 2021
312021
Detailed study of the ELAIS N1 field with the uGMRT–I. Characterizing the 325 MHz foreground for redshifted 21 cm observations
A Chakraborty, A Datta, S Choudhuri, N Roy, H Intema, M Choudhury, ...
Monthly Notices of the Royal Astronomical Society 487 (3), 4102-4113, 2019
252019
Demonstrating the Tapered Gridded Estimator (TGE) for the cosmological H i 21-cm power spectrum using 150-MHz GMRT observations
S Pal, S Bharadwaj, A Ghosh, S Choudhuri
Monthly Notices of the Royal Astronomical Society 501 (3), 3378-3391, 2021
242021
The angular power spectrum measurement of the Galactic synchrotron emission in two fields of the TGSS survey
S Choudhuri, S Bharadwaj, SS Ali, N Roy, HT Intema, A Ghosh
Monthly Notices of the Royal Astronomical Society: Letters 470 (1), L11-L15, 2017
232017
All-sky angular power spectrum–I. Estimating brightness temperature fluctuations using the 150-MHz TGSS survey
S Choudhuri, A Ghosh, N Roy, S Bharadwaj, HT Intema, SS Ali
Monthly Notices of the Royal Astronomical Society 494 (2), 1936-1945, 2020
222020
A Tapered Gridded Estimator (TGE) for the multifrequency angular power spectrum (MAPS) and the cosmological H i 21-cm power spectrum
S Bharadwaj, S Pal, S Choudhuri, P Dutta
Monthly Notices of the Royal Astronomical Society 483 (4), 5694-5700, 2019
212019
SKA Science Data Challenge 2: analysis and results
P Hartley, A Bonaldi, R Braun, J Aditya, S Aicardi, L Alegre, A Chakraborty, ...
Monthly Notices of the Royal Astronomical Society 523 (2), 1967-1993, 2023
192023
Turbulent power spectrum in warm and cold neutral medium using the Galactic H i 21 cm emission
S Choudhuri, N Roy
Monthly Notices of the Royal Astronomical Society 483 (3), 3437-3443, 2019
152019
First Multi-redshift Limits on Post–Epoch of Reionization 21 cm Signal from z= 1.96–3.58 Using uGMRT
A Chakraborty, A Datta, N Roy, S Bharadwaj, TR Choudhury, KK Datta, ...
The Astrophysical Journal Letters 907 (1), L7, 2021
142021
Characterizing EoR foregrounds: a study of the Lockman Hole region at 325 MHz
A Mazumder, A Chakraborty, A Datta, S Choudhuri, N Roy, Y Wadadekar, ...
Monthly Notices of the Royal Astronomical Society 495 (4), 4071-4084, 2020
142020
Statistical Recovery of 21 cm Visibilities and Their Power Spectra with Gaussian-constrained Realizations and Gibbs Sampling
F Kennedy, P Bull, MJ Wilensky, J Burba, S Choudhuri
The Astrophysical Journal Supplement Series 266 (2), 23, 2023
132023
Probing early Universe through redshifted 21-cm signal: Modeling and observational challenges
AK Shaw, A Chakraborty, M Kamran, R Ghara, S Choudhuri, SS Ali, S Pal, ...
Journal of Astrophysics and Astronomy 44 (1), 4, 2023
132023
Stringent constraint on the radio signal from dark matter annihilation in dwarf spheroidal galaxies using the TGSS
A Basu, N Roy, S Choudhuri, KK Datta, D Sarkar
Monthly Notices of the Royal Astronomical Society 502 (2), 1605-1611, 2021
132021
A study of Kepler supernova remnant: angular power spectrum estimation from radio frequency data
P Saha, S Bharadwaj, N Roy, S Choudhuri, D Chattopadhyay
Monthly Notices of the Royal Astronomical Society 489 (4), 5866-5875, 2019
112019
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