Australian - New Zealand - Antarctic (ANZAC) VLBI Network

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The project of astronomical/geodetic VLBI network has been developed in Australia and New Zealand as a part of the international geodetic network strategy. The new VLBI network is supposed to consist of one Antarctic, three-four Australian and one-two New Zealand comparatively small (12-16 meter in diameter) fast slew rate automated dishes equipped with modern broadband receivers covering frequency range from 1 to 32 GHz. It is proposed to install Antarctic radio telescope in the Scott Base (New Zealand), which will be the utmost Southern radio telescope in the world (Lat = 78º S). The proposed network will operate together with the existing Australian Long Baseline Array. The set of E-W and S-N baselines spanning from 200 km to more than 7000 km provides an excellent uv-coverage, ideal for the Southern Sky radio sources. The results of the network simulations are presented. Besides a wide spectrum of astrophysical and astrometrical VLBI applications, this network will allow to improve the ITRF in Australia-South Pacific region and the ICRF in the Southern Hemisphere; it will contribute to geophysical research (sea level change, Earth rotation irregularities) as well as to the monitoring of crustal deformation of the Australian continent, the New Zealand subduction zone and the Trans-Antarctic rift zone with fast crustal uplift.

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