The Atacama Large Millimeter/submillimeter Array
| Autor: | Wootten, Alwyn, Thompson, A. Richard |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Proceedings of the IEEE Volume 97, Issue 8, Aug. 2009 Page(s):1463 - 1471 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/JPROC.2009.2020572 |
| Popis: | The Atacama Large Millimeter/submillimeter Array (ALMA) is an international radio telescope under construction in the Atacama Desert of northern Chile. ALMA is situated on a dry site at 5000 m elevation, allowing excellent atmospheric transmission over the instrument wavelength range of 0.3 to 10 mm. ALMA will consist of two arrays of high-precision antennas. One, of up to 64 12-m diameter antennas, is reconfigurable in multiple patterns ranging in size from 150 meters up to ~15 km. A second array is comprised of a set of four 12-m and twelve 7-m antennas operating in one of two closely packed configurations ~50 m in diameter. The instrument will provide both interferometric and total-power astronomical information on atomic, molecular and ionized gas and dust in the solar system, our Galaxy, and the nearby to high-redshift universe. In this paper we outline the scientific drivers, technical challenges and planned progress of ALMA. Comment: to be published in Proceedings of the IEEE special issue on radiotelescopes |
| Databáze: | arXiv |
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