Moving towards daytime observing at the Large Millimeter Telescope

F. Peter Schloerb; Kamal Souccar; Miguel Chávez Dagostino; Daniel Ferrusca Rodriguez; David M. Gale; Arturo Gómez-Ruiz; Andrea Léon Huerta; David H. Hughes; David O. Sánchez-Arguelles; Grant W. Wilson

doi:10.1117/12.2562775

13 December 2020 Moving towards daytime observing at the Large Millimeter Telescope

F. Peter Schloerb, Kamal Souccar, Miguel Chávez Dagostino, Daniel Ferrusca Rodriguez, David M. Gale, Arturo Gómez-Ruiz, Andrea Léon Huerta, David H. Hughes, David O. Sánchez-Arguelles, Grant W. Wilson

Author Affiliations +

Proceedings Volume 11445, Ground-based and Airborne Telescopes VIII; 114455J (2020) https://doi.org/10.1117/12.2562775
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The Large Millimeter Telescope Alfonso Serrano (LMT) is a 50m-diameter radio telescope for millimeter-wave astronomy. In this paper we describe a number of initiatives underway to upgrade the antenna systems and permit scientific observations during daylight hours. We summarize recent efforts to characterize the thermal gradients that occur within the LMT structure and to identify important modes of surface deformation. The mitigation program involves use of the LMT's active surface to counteract the effects of measured thermal gradients within the antenna structure. It also includes active measures such as the installation of a ventilation system in the antenna backup structure. Prospects for additional active metrology measurements of the antenna surface for real-time surface corrections are also discussed.

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F. Peter Schloerb, Kamal Souccar, Miguel Chávez Dagostino, Daniel Ferrusca Rodriguez, David M. Gale, Arturo Gómez-Ruiz, Andrea Léon Huerta, David H. Hughes, David O. Sánchez-Arguelles, and Grant W. Wilson "Moving towards daytime observing at the Large Millimeter Telescope", Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII, 114455J (13 December 2020); https://doi.org/10.1117/12.2562775

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