The SOAR telescope atmospheric dispersion corrector

César Briceño; Steve Heathcote; Gerald Cecil; Darragh O'Donoghue; Roberto Tighe; Patricio Schurter; Manuel Martínez; Rolando Cantarruti; Omar Estay

doi:10.1117/12.2314026

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6 July 2018 The SOAR telescope atmospheric dispersion corrector

César Briceño, Steve Heathcote, Gerald Cecil, Darragh O'Donoghue, Roberto Tighe, Patricio Schurter, Manuel Martínez, Rolando Cantarruti, Omar Estay

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Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107003Z (2018) https://doi.org/10.1117/12.2314026
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The linear Atmospheric Dispersion Corrector has been operating at the SOuthern Astrophysical Research telescope since 2014. It was designed and built in collaboration between the University of North Carolina at Chapel Hill, and Cerro Tololo Inter-American Observatory. The device is installed in the elevation axis before the instruments mounted at the optical Nasmyth focus. It consists of two 300mm diameter sol-gel coated fused silica prisms, trombone mounted, which can be folded in or out of the beam. It is important for long slit spectroscopy, and essential for Multi-Object Slit spectroscopy. We present optical and mechanical designs, electronics and software control, and on-sky performance.

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César Briceño, Steve Heathcote, Gerald Cecil, Darragh O'Donoghue, Roberto Tighe, Patricio Schurter, Manuel Martínez, Rolando Cantarruti, and Omar Estay "The SOAR telescope atmospheric dispersion corrector", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107003Z (6 July 2018); https://doi.org/10.1117/12.2314026

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