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arxiv: 1807.03809 · v1 · pith:QK3DJIWGnew · submitted 2018-07-10 · 🌌 astro-ph.IM

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
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Theo ten Brummelaar Mariam Haidar Veronika Dubravec Scott Peters
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classification 🌌 astro-ph.IM
keywords detectorinfraredmirc-xcharanoisesaphirasensitivityultra-low
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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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