Atacama Large Millimeter Array
(large radio telescope array in Chile)
The Atacama Large Millimeter Array (ALMA)
is an interferometer array of radio telescopes on
the Chajnantor Plateau
in the Atacama Desert in Chile.
Construction began in November 2003 and
inauguration was on March 13, 2013.
It sits at an altitude of 5000 meters
and consists of
66 12-meter and 7-meter movable dishes that
observe millimeter and sub-millimeter wavelengths.
Operation began with 50 12-meter dishes.
A later additional called the Atacama Compact Array (ACA)
consists of sixteen additional 12-meter and 7-meter dishes
with different characteristics, including a wider field of view.
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|300μm||1000GHz||4.2meV||begin||Atacama Large Millimeter Array|
|9.7mm||31GHz||128μeV||end||Atacama Large Millimeter Array|
Academia Sinica Institute of Astronomy and Astrophysics (ASIAA)
Atacama Submillimeter Telescope Experiment (ASTE)
back end instrument
Combined Array for Research in Millimeter-wave Astronomy (CARMA)
European Southern Observatory (ESO)
front end instrument
Greenland Telescope (GLT)
LABOCA Extended Deep Field South Submillimetre Survey (LESS)
Large Millimeter Telescope (LMT)
Millimeter-wave Intensity Mapping Experiment (mmIME)
Next Generation Very Large Array (ngVLA)
National Radio Astronomy Observatory (NRAO)
protoplanetary disk (PPD)