Increasing the field size of the Molonglo Observatory Synthesis Telescope

作者: M. I. Large , D. Campbell-Wilson , L. E. Cram , R. G. Davison , J. G. Robertson

DOI: 10.1017/S1323358000019652

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摘要: The Molonglo Observatory Synthesis Telescope (MOST), which at present images a fully synthesised 70′ field in 12 h, is being converted to enable observing modes extend the size 160′. new will allow MOST survey completely sky south of δ = −30° (5σ) sensitivity limit about 5 mJy. result be catalogue over 400,000 radio sources with spatial density less than 1 source per 100 beam areas, providing foundation for number novel astronomical and cosmological investigations. conversion involves construction 352 low-noise HEMT preamplifiers, 88 digitally controlled UHF quad phase shifters, mixers IF sections, communication control system, several other sub-systems. project has been funded developments are well advanced.

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