Faraday rotation measure synthesis

We extend the rotation measure work of Burn (1966, MNRAS, 133, 67) to the cases of limited sampling of space and non-constant emission spectra. We introduce the rotation measure transfer function (RMTF), which is an excellent predictor of ambiguity problems with the coverage. Rotation measure synthesis can be implemented very efficiently on modern computers. Because the analysis is easily applied to wide fields, one can conduct very fast RM surveys of weak spatially extended sources. Difficult situations, for example multiple sources along the line of sight, are easily detected and transparently handled. Under certain conditions, it is even possible to recover the emission as a function of Faraday depth within…

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  Nederlandse Organisatie voor Wetenschappelijk Onderzoek