Conceptual design of a low resolution spectrograph for the Astronomical Observatory of Córdoba

D. Q. Nagasawa; J. L. Marshall; D. L. DePoy; N. Mondrik

doi:10.1117/12.2056679

28 July 2014 Conceptual design of a low resolution spectrograph for the Astronomical Observatory of Córdoba

D. Q. Nagasawa; J. L. Marshall; D. L. DePoy; N. Mondrik;

Author Affiliations +

Proceedings Volume 9147, Ground-based and Airborne Instrumentation for Astronomy V; 91472L (2014) https://doi.org/10.1117/12.2056679
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

We present a conceptual design for a low resolution optical spectrograph for the Astronomical Observatory of Cordoba 1.54m telescope. The simple instrument is required to cover a broad wavelength range (4000A<λ <9000A with 3000A simultaneous coverage) at a resolution of R=λ/∆λ ~ 500, allowing its use as a versatile astronomical spectrograph. In particular, we explore the use of inexpensive commercial off-the-shelf lenses, gratings, and a CCD system to create a small and simple spectrograph that has reasonable performance. We carefully measure properties of the lenses and demonstrate that they have excellent image quality and high throughput.

Citation Download Citation

D. Q. Nagasawa, J. L. Marshall, D. L. DePoy, N. Mondrik, "Conceptual design of a low resolution spectrograph for the Astronomical Observatory of Córdoba", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91472L (28 July 2014); doi: 10.1117/12.2056679; https://doi.org/10.1117/12.2056679

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