Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010alman...5....2h&link_type=abstract
ALMA Newsletter, vol. 5, p. 2-3
Other
Alma
Scientific paper
Thus far we have been carrying out the commissioning with the antennas in the "Phase I" configuration. The three antennas were located somewhat to the west of the center of the array on foundations which were separated by 100 to 200 meters. This was fine for doing the initial testing and checking out of the system, but to proceed with the next phase of commissioning we need to have the antennas closer together. This will make it possible for us to observe planets which (apart from the Sun and the Moon) are the strongest sources of (sub-) millimeter wave signals in the sky. It also reduces the effects of fluctuations in the atmosphere which would otherwise mask any small variations in the antennas or the electronics which are the things that we now need to investigate. To bring the antennas close together they have been moved to foundations that will eventually form part of the Atacama Compact Array (ACA) which is to the south of the technical building.
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