Very Long Baseline Interferometry with the SKA
Zsolt Paragi, Leith Godfrey, Cormac Reynolds, Maria Rioja, Adam, Deller, Bo Zhang, Leonid Gurvits, Michael Bietenholz, Arpad Szomoru, Hayley, Bignall, Paul Boven, Patrick Charlot, Richard Dodson, Sandor Frey, Michael, Garrett, Hiroshi Imai, Andrei Lobanov, Mark Reid, Eduardo Ros
TL;DR
Integrating Very Long Baseline Interferometry with the SKA enhances its scientific capabilities by enabling high-resolution observations through phased-array outputs and extended baselines, feasible within current specifications.
Contribution
This paper proposes a practical plan to add VLBI capabilities to the SKA, including phased-array outputs and distributed configurations for SKA2, expanding its scientific potential.
Findings
Feasibility within current SKA specifications
Implementation via phased-array outputs for SKA1
Distributed configuration for SKA2 with long baselines
Abstract
Adding VLBI capability to the SKA arrays will greatly broaden the science of the SKA, and is feasible within the current specifications. SKA-VLBI can be initially implemented by providing phased-array outputs for SKA1-MID and SKA1-SUR and using these extremely sensitive stations with other radio telescopes, and in SKA2 by realising a distributed configuration providing baselines up to thousands of km, merging it with existing VLBI networks. The motivation for and the possible realization of SKA-VLBI is described in this paper.
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Taxonomy
TopicsRadio Astronomy Observations and Technology · Antenna Design and Optimization · Microwave Engineering and Waveguides