Robust calibration of radio interferometers in non-Gaussian environment

V Ollier, MN El Korso, R Boyer… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
The development of new phased-array systems in radio astronomy, as the low-frequency
array (LOFAR) and the square kilometre array (SKA), formed of a large number of small and …

FLAGCAL: a flagging and calibration package for radio interferometric data

J Prasad, J Chengalur - Experimental Astronomy, 2012 - Springer
We describe a flagging and calibration pipeline intended for making quick look images from
GMRT data. The package identifies and flags corrupted visibilities, computes calibration …

Probabilistic image reconstruction for radio interferometers

PM Sutter, BD Wandelt, JD McEwen… - Monthly Notices of …, 2014 - academic.oup.com
We present a novel, general-purpose method for deconvolving and denoizing images from
gridded radio interferometric visibilities using Bayesian inference based on a Gaussian …

A new approach to multifrequency synthesis in radio interferometry

H Junklewitz, MR Bell, T Enßlin - Astronomy & Astrophysics, 2015 - aanda.org
We present a new approach to multifrequency synthesis in radio astronomy. Using Bayesian
inference techniques, the new technique estimates the sky brightness and the spectral index …

[HTML][HTML] White rabbit in radio astronomy

EP Boven - Proceedings of the ICALEPCS, 2017 - epaper.kek.jp
The Square Kilometre Array (SKA) is a new radio telescope that is currently being designed.
It will consist of two interferometric antenna arrays, one in South Africa and one in Australia …

DiFX: a software correlator for very long baseline interferometry using multiprocessor computing environments

AT Deller, SJ Tingay, M Bailes… - Publications of the …, 2007 - iopscience.iop.org
We describe the development of an FX‐style correlator for very long baseline interferometry
(VLBI), implemented in software and intended to run in multiprocessor computing …

Revisiting the radio interferometer measurement equation-III. Addressing direction-dependent effects in 21 cm WSRT observations of 3C 147

OM Smirnov - Astronomy & Astrophysics, 2011 - aanda.org
Context. Papers I and II of this series have extended the radio interferometry measurement
equation (RIME) formalism to the full-sky case, and provided a RIME-based description of …

The ALMA interferometric pipeline heuristics

TR Hunter, R Indebetouw, CL Brogan… - Publications of the …, 2023 - iopscience.iop.org
We describe the calibration and imaging heuristics developed and deployed in the Atacama
Large Millimeter/submillimeter Array (ALMA) interferometric data processing pipeline, as of …

Systematic biases in low-frequency radio interferometric data due to calibration: the LOFAR-EoR case

AH Patil, S Yatawatta, S Zaroubi… - Monthly Notices of …, 2016 - academic.oup.com
The redshifted 21 cm line of neutral hydrogen is a promising probe of the epoch of
reionization (EoR). However, its detection requires a thorough understanding and control of …

Revisiting the radio interferometer measurement equation-I. A full-sky Jones formalism

OM Smirnov - Astronomy & Astrophysics, 2011 - aanda.org
Context. Since its formulation by Hamaker et al., the radio interferometer measurement
equation (RIME) has provided a rigorous mathematical basis for the development of novel …