Veloce Rosso: Australia's new precision radial velocity spectrograph

James Gilbert; Christoph Bergmann; Gabe Bloxham; Robert Boz; Robert Brookfield; Tom Carkic; Brad Carter; Scott Case; Vladimir Churilov; Michael Ellis; Gaston Gausachs; Luke Gers; Doug Gray; Nicholas Herrald; Michael Ireland; Damien Jones; Yevgen Kripak; Jon Lawrence; Ellie O'Brien; Ian Price; Matthew Robertson; Christian Schwab; Chris Tinney; Annino Vaccarella; Colin Vest; Duncan Wright; Ross Zhelem

doi:10.1117/12.2312399

6 July 2018 Veloce Rosso: Australia's new precision radial velocity spectrograph

James Gilbert, Christoph Bergmann, Gabe Bloxham, Robert Boz, Robert Brookfield, Tom Carkic, Brad Carter, Scott Case, Vladimir Churilov, Michael Ellis, Gaston Gausachs, Luke Gers, Doug Gray, Nicholas Herrald, Michael Ireland, Damien Jones, Yevgen Kripak, Jon Lawrence, Ellie O'Brien, Ian Price, Matthew Robertson, Christian Schwab, Chris Tinney, Annino Vaccarella, Colin Vest, Duncan Wright, Ross Zhelem

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107020Y (2018) https://doi.org/10.1117/12.2312399
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Veloce is an ultra-stable fibre-fed R4 echelle spectrograph for the 3.9 m Anglo-Australian Telescope. The first channel to be commissioned, Veloce ‘Rosso’, utilises multiple low-cost design innovations to obtain Doppler velocities for sun-like and M-dwarf stars at <1 ms ^-1 precision. The spectrograph has an asymmetric white-pupil format with a 100-mm beam diameter, delivering R>75,000 spectra over a 580-930 nm range for the Rosso channel. Simultaneous calibration is provided by a single-mode pulsed laser frequency comb in tandem with a traditional arc lamp. A bundle of 19 object fibres ensures full sampling of stellar targets from the AAT site. Veloce is housed in dual environmental enclosures that maintain positive air pressure at a stability of ±0.3 mbar, with a thermal stability of ±0.01 K on the optical bench. We present a technical overview and early performance data from Australia's next major spectroscopic machine.

Conference Presentation

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James Gilbert, Christoph Bergmann, Gabe Bloxham, Robert Boz, Robert Brookfield, Tom Carkic, Brad Carter, Scott Case, Vladimir Churilov, Michael Ellis, Gaston Gausachs, Luke Gers, Doug Gray, Nicholas Herrald, Michael Ireland, Damien Jones, Yevgen Kripak, Jon Lawrence, Ellie O'Brien, Ian Price, Matthew Robertson, Christian Schwab, Chris Tinney, Annino Vaccarella, Colin Vest, Duncan Wright, and Ross Zhelem "Veloce Rosso: Australia's new precision radial velocity spectrograph", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107020Y (6 July 2018); https://doi.org/10.1117/12.2312399

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