A new approach to multifrequency synthesis in radio interferometry

@article{Junklewitz2014ANA,
  title={A new approach to multifrequency synthesis in radio interferometry},
  author={H. Junklewitz and M. A. Bell and Torsten A. Ensslin},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={581},
  pages={1-11}
}
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 simultaneously. In principle, the bandwidth of a wide-band observation can be fully exploited for sensitivity and resolution, currently only limited by higher order e ects like spectral curvature. Employing this new approach, we further present a multifrequency extension to the imaging algorithmresolve. This method… 
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