Progress in the Design of the Atacama Large Aperture Submillimeter Telescope

Abstract

The Atacama Large Aperture Submillimeter Telescope (AtLAST) aims to be the premier next generation large diameter (50 meter) single dish observatory capable of observations across the millimeter/submillimeter spectrum, from 30~GHz to 1~THz. AtLAST will be sited in Chile at approximately 5100 meters above sea level, high in the Atacama Desert near Llano de Chajnantor. The novel rocking-chair telescope design allows for a unprecedentedly wide field of view (FoV) of 1-2${}^{\circ }$ diameter, a large receiver cabin housing six major instruments, and high structural stability during fast scanning operations (up to $\sim 3^{\circ }$ per second in azimuth). Here we describe the current status of, and expected outcomes for, the antenna design study, which will be completed in 2024.

Accepted for the URSI GASS 2023, Sapporo, Japan, 19-26 August 2023. 4 pages, 3 figures

References in corpus (2)

• Wavefront sensor for millimeter/submillimeter-wave adaptive optics based on aperture-plane interferometry
• First Generation Heterodyne Instrumentation Concepts for the Atacama Large Aperture Submillimeter Telescope

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• Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Resolving the Hot and Ionized Universe through the Sunyaev-Zeldovich effect
• Technical requirements flow-down for the concept design of the novel 50-meter Atacama Large Aperture Submm Telescope (AtLAST)
• A physical optics characterization of the beam shape and sidelobe levels for the Atacama Large Aperture Submillimeter Telescope (AtLAST)