Submillimeter Array (Q1205241)

  • matcher place: Hawaiʻi County (relation 166562), Hawaii (relation 166563), Hawaii (relation 3403603)
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  • English Wikipedia categories: Astronomical observatories in Hawaii, Buildings and structures in Hawaii County, Hawaii, Interferometric telescopes, Radio telescopes, Submillimetre telescopes
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Summary from English Wikipedia (enwiki)

The Submillimeter Array (SMA) consists of eight 6-meter (20 ft) diameter radio telescopes arranged as an interferometer for submillimeter wavelength observations. It is the first purpose-built submillimeter interferometer, constructed after successful interferometry experiments using the pre-existing 15-meter (49 ft) James Clerk Maxwell Telescope and 10.4-meter (34.1 ft) Caltech Submillimeter Observatory (now decommissioned) as an interferometer. All three of these observatories are located at Mauna Kea Observatory on Mauna Kea, Hawaii, and have been operated together as a ten element interferometer in the 230 and 345 GHz bands (eSMA, for extended Submillimeter Array). The baseline lengths presently in use range from 16 to 508 meters (52 to 1,667 ft). The radio frequencies accessible to this telescope range from 194–408 gigahertz (1.545–0.735 mm) which includes rotational transitions of dozens of molecular species as well as continuum emission from interstellar dust grains. Although the array is capable of operating both day and night, most of the observations take place at nighttime when the atmospheric phase stability is best.

Wikidata location: 19.8243, -155.4780 view on OSM or edit on OSM

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