The Challenges of Low-Frequency Radio Polarimetry: Lessons from the Murchison Widefield Array
The Challenges of Low-Frequency Radio Polarimetry: Lessons from the Murchison Widefield Array
Abstract We present techniques developed to calibrate and correct Murchison Widefield Array low-frequency (72–300 MHz) radio observations for polarimetry. The extremely wide field-of-view, excellent instantaneous ( u , v )-coverage and sensitivity to degree-scale structure that the Murchison Widefield Array provides enable instrumental calibration, removal of instrumental artefacts, and correction …