MIRC-X/CHARA: sensitivity improvements with an ultra-low noise SAPHIRA detector
Narsireddy Anugu, Jean-Baptiste Le Bouquin, John D. Monnier, Stefan, Kraus, Jacob Ennis, Cyprien Lanthermann, Benjamin R. Setterholm, Claire L., Davies, Theo ten Brummelaar, Mariam Haidar, Veronika Dubravec, Scott Peters
TL;DR
The paper discusses the upgrade of the MIRC-X interferometer with a SAPHIRA detector, significantly enhancing sensitivity through ultra-low noise infrared detection and fast imaging capabilities.
Contribution
Introduction of an ultra-low noise SAPHIRA detector in MIRC-X, improving sensitivity and performance of the interferometer at CHARA.
Findings
Enhanced sensitivity demonstrated with the new detector.
Successful first light observations achieved.
Detailed characterization of detector performance.
Abstract
MIRC-X is an upgrade of the six-telescope infrared beam combiner at the CHARA telescope array, the world's largest baseline interferometer in the optical/infrared, located at the Mount Wilson Observatory in Los Angeles. The upgraded instrument features an ultra-low noise and fast frame rate infrared camera (SAPHIRA detector) based on e-APD technology. We report the MIRC-X sensitivity upgrade work and first light results in detail focusing on the detector characteristics and software architecture.
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