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- W4224273842 abstract "A wide-field zenith-looking telescope operating in a mode similar to Time-Delay-Integration (TDI) or drift scan imaging can perform an infrared sky survey without active pointing control but it requires a high-speed, low-noise infrared detector. Operating from a hosted payload platform on the International Space Station (ISS), the Emu space telescope employs the paradigm-changing properties of the Leonardo SAPHIRA electron avalanche photodiode array to provide powerful new observations of cool stars at the critical water absorption wavelength (1.4 $mu$m) largely inaccessible to ground-based telescopes due to the Earth's own atmosphere. Cool stars, especially those of spectral-type M, are important probes across contemporary astrophysics, from the formation history of the Galaxy to the formation of rocky exoplanets. Main sequence M-dwarf stars are the most abundant stars in the Galaxy and evolved M-giant stars are some of the most distant stars that can be individually observed. The Emu sky survey will deliver critical stellar properties of these cool stars by inferring oxygen abundances via measurement of the water absorption band strength at 1.4 $mu$m. Here we present the TDI-like imaging capability of Emu mission, its science objectives, instrument details and simulation results." @default.
- W4224273842 created "2022-04-26" @default.
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- W4224273842 date "2022-04-19" @default.
- W4224273842 modified "2023-09-27" @default.
- W4224273842 title "Emu: A Case Study for TDI-like Imaging for Infrared Observation from Space" @default.
- W4224273842 doi "https://doi.org/10.48550/arxiv.2204.08713" @default.
- W4224273842 hasPublicationYear "2022" @default.
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