xNTD and the Path towards the SKA
نویسنده
چکیده
The CSIRO-led eXtended New Technology Demonstrator (xNTD) will test key SKA technologies whilst delivering exciting science outcomes in the fields of HI surveys, gaseous evolution, galactic magnetism, pulsars and transients. The xNTD and its sister telescope, the MIT-led Low Frequency Demonstrator (LFD), build on technologies developed by the Sydney University SKA Molonglo Prototype (SKAMP) and the CSIRO New Technology Demonstrator (NTD). The science and technology goals for the xNTD are outlined, and the implications for SKA science and technology development are discussed. The xNTD is at least an order of magnitude faster for HI surveys than existing instruments, making it a powerful instrument for gathering data on large samples of galaxies with the aim of complementing extensive infrared and optical surveys, and pushing the redshift range for the detection of substantial numbers of galaxies to z ∼ 0.5. Together, the xNTD and LFD are excellent demonstrations of SKA science and technology over a significant fraction of the SKA frequency range.
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