9 August 2016 Conception of a near-IR spectrometer for ground-based observations of massive stars
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In our contribution, we outline the different steps in the design of a fiber-fed spectrographic instrument that intends to observe massive stars. Starting from the derivation of theoretical relationships from the scientific requirements and telescope characteristics, the entire optical design of the spectrograph is presented. Specific optical elements, such as a toroidal lens, are introduced to improve the instrument’s performances. Then, the verification of predicted optical performances is investigated through optical analyses such as resolution checking. Eventually, the star positioning system onto the central fiber core is explained.
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C. Kintziger, C. Kintziger, R. Desselle, R. Desselle, J. Loicq, J. Loicq, G. Rauw, G. Rauw, P. Rochus, P. Rochus, "Conception of a near-IR spectrometer for ground-based observations of massive stars", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99085R (9 August 2016); doi: 10.1117/12.2232300; https://doi.org/10.1117/12.2232300


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