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Proceedings Paper

ALMA array element astronomical verification
Author(s): 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; P. Planesas
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Paper 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.

Paper Details

Date Published: 17 September 2012
PDF: 8 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 84443F (17 September 2012); doi: 10.1117/12.926228
Show Author Affiliations
S. Asayama, Joint ALMA Observatory (Chile)
National Astronomical Observatory of Japan (Japan)
L. B. G. Knee, Joint ALMA Observatory (Chile)
NRC Herzberg Institute of Astrophysics (Canada)
P. G. Calisse, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
P. C. Cortés, Joint ALMA Observatory (Chile)
National Radio Astronomy Observatory (United States)
R. Jager, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
B. López, Joint ALMA Observatory (Chile)
C. López, Joint ALMA Observatory (Chile)
T. Nakos, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
N. Phillips, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
M. Radiszcz, Joint ALMA Observatory (Chile)
R. Simon, Joint ALMA Observatory (Chile)
National Radio Astronomy Observatory (United States)
I. Toledo, Joint ALMA Observatory (Chile)
N. Whyborn, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
H. Yatagai, Joint ALMA Observatory (Chile)
National Astronomical Observatory of Japan (Japan)
J. P. McMullin, National Solar Observatory (United States)
P. Planesas, Observatorio Astronómico Nacional (Spain)


Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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