Authors
Warwick E Wilson, Richard H Ferris, Peter Axtens, A Brown, E Davis, G Hampson, Mark Leach, P Roberts, S Saunders, Barbel S Koribalski, James L Caswell, Emil Lenc, J Stevens, Maxim A Voronkov, Mark H Wieringa, K Brooks, Philip G Edwards, Ronald D Ekers, Bjorn Emonts, L Hindson, S Johnston, ST Maddison, EK Mahony, SS Malu, M Massardi, MY Mao, D McConnell, RP Norris, D Schnitzeler, R Subrahmanyan, JS Urquhart, Mark A Thompson, RM Wark
Publication date
2011/9/11
Journal
Monthly Notices of the Royal Astronomical Society
Volume
416
Issue
2
Pages
832-856
Publisher
The Royal Astronomical Society
Description
Here, we describe the Compact Array Broad-band Backend (CABB) and present first results obtained with the upgraded Australia Telescope Compact Array (ATCA). The 16-fold increase in observing bandwidth, from 2 × 128 to 2 × 2048 MHz, high-bit sampling and the addition of 16 zoom windows (each divided into further 2048 channels) provide major improvements for all ATCA observations. The benefits of the new system are: (1) hugely increased radio continuum and polarization sensitivity as well as image fidelity; (2) substantially improved capability to search for and map emission and absorption lines over large velocity ranges; (3) simultaneous multi-line and continuum observations; (4) increased sensitivity, survey speed and dynamic range due to high-bit sampling and (5) high-velocity resolution, while maintaining full polarization output. The new CABB system encourages all observers to make use of …
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Scholar articles
WE Wilson, RH Ferris, P Axtens, A Brown, E Davis… - Monthly Notices of the Royal Astronomical Society, 2011