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1 September 2021 Trade-off study of a high-resolution spectrograph on a CubeSat to study exoplanets
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Abstract
The majority of the 4,000 known exoplanets have been detected via transit photometry. Unambiguous characterization of their atmospheres for biosignatures such as H2O, CH4, O3 and O2 can be unlocked with high-resolution spectroscopy from space. To this end, we investigate the feasibility of a high-resolution (R=50,000) spectrograph on a CubeSat. This work compares optical design elements of traditional Echelle grating and a virtually imaged phased array (VIPA) using exposure time calculations. The limited magnitude when varying the spectral resolution and instrument size is reported. VIPAs on a 6U CubeSat is a cost-effective solution for high-resolution spectroscopy from space.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Surangkhana Rukdee "Trade-off study of a high-resolution spectrograph on a CubeSat to study exoplanets", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 118230K (1 September 2021); https://doi.org/10.1117/12.2595859
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KEYWORDS
Telescopes

Exoplanets

Spectral resolution

Spectroscopy

Spectrographs

Stars

Signal to noise ratio

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