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

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

2005-01-03

arxiv.org/abs/astro-ph/0501011v1

Astronomy and Astrophysics

Astrophysics

4 pages. 5 figures. Proceedings of the 7th European VLBI Network Symposium held in Toledo, Spain on October 12-15, 2004. Edito

Scientific paper

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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