20 February 2017 Conceptual design for an AIUC multi-purpose spectrograph camera using DMD technology
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Abstract
Current and upcoming massive astronomical surveys are expected to discover a torrent of objects, which need groundbased follow-up observations to characterize their nature. For transient objects in particular, rapid early and efficient spectroscopic identification is needed. In particular, a small-field Integral Field Unit (IFU) would mitigate traditional slit losses and acquisition time. To this end, we present the design of a Digital Micromirror Device (DMD) multi-purpose spectrograph camera capable of running in several modes: traditional longslit, small-field patrol IFU, multi-object and full-field IFU mode via Hadamard spectra reconstruction. AIUC Optical multi-purpose CAMera (AIUCOCAM) is a low-resolution spectrograph camera of R~1,600 covering the spectral range of 0.45-0.85 μm. We employ a VPH grating as a disperser, which is removable to allow an imaging mode. This spectrograph is envisioned for use on a 1-2 m class telescope in Chile to take advantage of good site conditions. We present design decisions and challenges for a costeffective robotized spectrograph. The resulting instrument is remarkably versatile, capable of addressing a wide range of scientific topics.
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S. Rukdee, F. Bauer, H. Drass, L. Vanzi, A. Jordan, F. Barrientos, "Conceptual design for an AIUC multi-purpose spectrograph camera using DMD technology", Proc. SPIE 10117, Emerging Digital Micromirror Device Based Systems and Applications IX, 101170J (20 February 2017); doi: 10.1117/12.2251557; https://doi.org/10.1117/12.2251557
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