Concept study for a compact planetary homodyne interferometer (PHI) for temporal global observation of methane on Mars in IR

Sona Hosseini; Chris Webster; Geoffrey Toon; Wesley Traub; John Trauger

doi:10.1117/12.2233805

29 July 2016 Concept study for a compact planetary homodyne interferometer (PHI) for temporal global observation of methane on Mars in IR

Sona Hosseini, Chris Webster, Geoffrey Toon, Wesley Traub, John Trauger

Author Affiliations +

Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 99045C (2016) https://doi.org/10.1117/12.2233805
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We present a concept study to develop a new instrument to sequentially and over a long time measure methane abundance on Mars and find out its global seasonal variations, if any. The Planetary Homodyne Interferometer (PHI) can offer integrated spectra over a wide field-of-view (FOV) in high spectral resolution (R~10⁵) in a compact design using no (or a small < 1m) primary mirror. PHI is best suited to studies of sources where temporally tracing specific spectral features sensitivity, and spectral resolution is of higher significance than spatial fidelity.

Citation Download Citation

Sona Hosseini, Chris Webster, Geoffrey Toon, Wesley Traub, and John Trauger "Concept study for a compact planetary homodyne interferometer (PHI) for temporal global observation of methane on Mars in IR", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99045C (29 July 2016); https://doi.org/10.1117/12.2233805

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