The Atacama Large Millimeter/Submillimeter Array
The Atacama Large Millimeter/Submillimeter Array
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DOI：
10.1109/jproc.2009.2020572
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发表时间：
2009-04
影响因子：
20.6
通讯作者：
A. Wootten;A. Thompson
中科院分区：
文献类型：
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作者：
A. Wootten;A. Thompson
阿塔卡马大型毫米波/亚毫米波阵列（阿尔马）是位于智利北方阿塔卡马沙漠的国际射电望远镜。阿尔马位于海拔5000米的干燥场地，在仪器波长范围0.3-10毫米内具有良好的大气传输能力。阿尔马将由两组高精度天线组成。其中一个是多达64个直径为12米的天线，可以在150米到15公里的范围内以多种模式重新配置。第二个阵列由一组四个12米和12个7米天线组成，它们在两个直径约50米的密集配置中的一个中工作。该仪器将提供有关太阳系、银河系和附近高红移宇宙中原子、分子和电离气体和尘埃的干涉和总功率天文信息。在本文中，我们概述了科学的驱动力，技术挑战，和计划的进展阿尔马。
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 0.3-10 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 m up to ~ 15 km. A second array is composed of a set of four 12-m and 12 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.