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A new approach to multi-frequency synthesis in radio interferometry

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arxiv 1401.4711 v1 pith:KKZMW2JF submitted 2014-01-19 astro-ph.IM

H. Junklewitz , M.A. Bell , T. En{ss}lin This is my paper
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keywords multi-frequencyapproachalgorithmimaginglikeradiospectralsynthesis
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We present a new approach to multi-frequency 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 effects like spectral curvature. Employing this new approach, we further present a multi-frequency extension to the imaging algorithm RESOLVE. In simulations, this new algorithm outperforms current multi-frequency imaging techniques like MS-MF-CLEAN.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Multifrequency Synthesis via CHIBI: Colorful Hierarchical Interferometric Bayesian Imaging

    astro-ph.IM 2026-06 unverdicted novelty 7.0 of 10

    CHIBI is a new hierarchical Bayesian method for multifrequency synthesis radio imaging based on synchrotron spectral parametrization, demonstrated on VLBA MOJAVE data and simulated EHT observations of M87*.

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