The Atacama Large Millimeter/submillimeter Array

Richard E Hills; Anthony J. Beasley

doi:10.1117/12.787567

Abstract

The Atacama Large Millimeter/submillimeter Array (ALMA) is an international radio telescope under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation, allowing excellent atmospheric transmission over the instrument wavelength range of 0.3 to 3 mm. ALMA will contain an array of up to sixty-four 12-m diameter high-precision antennas arranged in multiple configurations ranging in size from 150 meters up to ~15 km, and a set of four 12-m and twelve 7-m antennas operating in closely packed configurations ~50m in diameter. The instrument will provide both interferometric and total-power astronomical information on high-energy electrons, molecular gas and dust in solar system, our Galaxy, and the nearby and high-redshift universe. In this paper we outline the scientific drivers, technical challenges and construction status of ALMA.

Citation Download Citation

Richard E Hills, Anthony J. Beasley, "The Atacama Large Millimeter/submillimeter Array", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70120N (10 July 2008); doi: 10.1117/12.787567; https://doi.org/10.1117/12.787567

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