An international astronomical interferometer of 66 radio telescopes on the high-altitude Chajnantor plateau in northern Chile, observing at millimeter and submillimeter wavelengths to study star formation, planet formation and the early universe. It is jointly built and run by a global partnership of observatories and participated in the Event Horizon Telescope project that produced the first direct image of a black hole.
Facts
Observatory TypeGround-based radio observatory (millimeter/submillimeter array) 1 LocationChajnantor Plateau, Atacama Desert, Chile 1 MeasuresMeasures radiation in the millimeter and submillimeter wavelength range, from 3.6 to 0.32 millimeters. 1 Operating PrincipleOperates as an interferometric array of 66 high-precision antennas whose signals are combined to act as a single telescope with far higher resolution than any one antenna alone. 1 Classification
Observing Band FAQs
What wavelengths does the Atacama Large Millimeter Array observe?
It observes wavelengths of 3.6 to 0.32 millimeters.
The initial array of 66 high-precision antennas operates at wavelengths of 3.6 to 0.32 millimeters, which is 31 to 1000 gigahertz.
Connections
Associated With
Source ESO - First Image of the Black Hole at the Heart of Our Galaxy (2022)European Southern Observatory
Operated By
Source Atacama Large Millimeter Array (Wikipedia)
Source Atacama Large Millimeter Array (Wikipedia)
In the Other Atlases
Located In
Also in Geography Atlas: where this subject is located.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationAtacama Large Millimeter Array, Overview section (wavelength)
operates at wavelengths of 3.6 to 0.32 millimeters (31 to 1000 GHz).
Atacama Large Millimeter Array, Overview section (array)
The initial ALMA array is composed of 66 high-precision antennae
alma-observatory, entity description, observing band (radio)
An international astronomical interferometer of 66 radio telescopes on the high-altitude Chajnantor plateau in northern Chile, observing at millimeter and submillimeter wavelengths to study star formation, planet formation and the early universe.
View the Source Atacama Large Millimeter Array (Wikipedia)
Atacama Large Millimeter Array, lead paragraph section
Atacama Large Millimeter/submillimeter Array (ALMA)
In Group: Radio and Millimetre Interferometer Arrays, Lead sentence
The Atacama Large Millimeter/submillimeter Array (ALMA) is an astronomical interferometer of 66 radio telescopes in the Atacama Desert of northern Chile, which observe electromagnetic radiation at millimeter and submillimeter wavelengths.
Operated By: European Southern Observatory, Article text: operator
ALMA construction and operations are led on behalf of Europe by ESO, on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc (AUI), and on behalf of East Asia by the National Astronomical Observatory of Japan (NAOJ).
Operated By: National Radio Astronomy Observatory, Article text: operator
ALMA construction and operations are led on behalf of Europe by ESO, on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc (AUI), and on behalf of East Asia by the National Astronomical Observatory of Japan (NAOJ).
View the SourceESO - First Image of the Black Hole at the Heart of Our Galaxy (2022)
European Southern Observatory, European Southern ObservatoryAssociated With: Sagittarius A*, EHT array participant listQuote, Associated With: Sagittarius A*, EHT array participant list
The EHT network included eight radio observatories: ALMA, APEX, the IRAM 30-meter Telescope, the James Clerk Maxwell Telescope (JCMT), the Large Millimeter Telescope Alfonso Serrano (LMT), the Submillimeter Array (SMA), the UArizona Submillimeter Telescope (SMT), and the South Pole Telescope (SPT).
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