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17 September 2012 ALMA array element astronomical verification
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Abstract
The Atacama Large Millimeter/submillimeter Array (ALMA) will consist of at least 54 twelve-meter antennas and 12 seven-meter antennas operating as an aperture synthesis array in the (sub)millimeter wavelength range. The ALMA System Integration Science Team (SIST) is a group of scientists and data analysts whose primary task is to verify and characterize the astronomical performance of array elements as single dish and interferometric systems. The full set of tasks is required for the initial construction phase verification of every array element, and these can be divided roughly into fundamental antenna performance tests (verification of antenna surface accuracy, basic tracking, switching, and on-the-fly rastering) and astronomical radio verification tasks (radio pointing, focus, basic interferometry, and end-to-end spectroscopic verification). These activities occur both at the Operations Support Facility (just below 3000 m elevation) and at the Array Operations Site at 5000 m.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Asayama, L. B. G. Knee, P. G. Calisse, P. C. Cortés, R. Jager, B. López, C. López, T. Nakos, N. Phillips, M. Radiszcz, R. Simon, I. Toledo, N. Whyborn, H. Yatagai, J. P. McMullin, and P. Planesas "ALMA array element astronomical verification", Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84443F (17 September 2012); https://doi.org/10.1117/12.926228
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