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Attaining m s⁻¹ level intrinsic Doppler precision with RHEA, a low-cost single-mode spectrograph

Feger, Tobias; Ireland, Michael; Schwab, Christian; Bento, Joao; Bacigalupo, Carlos; Coutts, David W.


We present RHEA, a compact and inexpensive single-mode spectrograph which is built to exploit the capabilities of modest-sized telescopes in an economic way. The instrument is fed by up to seven optical waveguides with the aim of achieving an efficient and modal-noise-free unit, suitable for attaining extreme Doppler precision. The cross-dispersed layout features a wavelength coverage from 430-650 nm, with spectral resolution of R∼75,000. When coupled to small telescopes using fast tip/tilt...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Experimental Astronomy
DOI: 10.1007/s10686-016-9510-5


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