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arXiv · 2406.17192

Upgrading the Submillimeter Array: wSMA and beyond

Paul K. Grimes·Garrett K. Keating·Raymond Blundell·Robert D. Christensen·Mark Gurwell·Attila Kovacs·Timothy Norton·Scott N. Paine·Ramprasad Rao·Edward C. -Y. Tong·Jonathan Weintroub·David Wilner·Robert W. Wilson·Lingzhen Zeng·Qizhou Zhang
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Abstract

The Submillimeter Array (SMA) is an array of 8 antennas operating at millimeter and submillimeter wavelengths on Maunakea, Hawaii, operated by the Smithsonian Astrophysical Observatory and Academia Sinica Institute of Astronomy and Astrophysics, Taiwan. Over the past several years, we have been preparing a major upgrade to the SMA that will replace the aging original receiver cryostats and receiver cartridges with all new cryostats and new 230 and 345 GHz receiver designs. This wideband upgrade (wSMA) will also include significantly increased instantaneous bandwidth, improved sensitivity, and greater capabilities for dual frequency observations. In this paper, we will describe the wSMA receiver upgrade and status, as well as the future upgrades that will be enabled by the deployment of the wSMA receivers.

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Paul K. Grimes, Garrett K. Keating, Raymond Blundell, Robert D. Christensen, Mark Gurwell, Attila Kovacs, Timothy Norton, Scott N. Paine, Ramprasad Rao, Edward C. -Y. Tong, Jonathan Weintroub, David Wilner, Robert W. Wilson, Lingzhen Zeng, Qizhou Zhang. 2024-06-25. Upgrading the Submillimeter Array: wSMA and beyond. https://arxiv.org/abs/2406.17192

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