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Discovering the microJy Radio VLBI Sky via "Full-beam" Self-calibration

M. A. Garrett·J. M. Wrobel·R. Morganti
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Abstract

We demonstrate that at 1.4 GHz the combined response of sources detected serendipitously in deep, wide-field VLBI images is sufficient to permit self-calibration techniques to be employed. This technique of "full-beam" VLBI self-calibration permits coherent VLBI observations to be successfully conducted in any random direction on the sky, thereby enabling very faint radio sources to be detected. Via full-beam self-calibration, Global VLBI observations can equal and indeed surpass the level of sensitivity achieved by connected arrays. This technique will enable large-scale VLBI surveys of the faint radio source population to be conducted, in addition to targeted observations of faint sources of special interest (e.g. GRBs, SNe, SNR and low-luminosity AGN).

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M. A. Garrett, J. M. Wrobel, R. Morganti. 2005-01-03. Discovering the microJy Radio VLBI Sky via "Full-beam" Self-calibration. https://arxiv.org/abs/astro-ph/0501011

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