Veloce Rosso: Australia's new precision radial velocity spectrograph

Gilbert, James and Bergmann, Christoph and Bloxham, Gabe and Boz, Robert and Brookfield, Robert and Carkic, Tom and Carter, Brad and Case, Scott and Churilov, Vladimir and Ellis, Michael and Gausachs, Gaston and Gers, Luke and Gray, Doug and Herrald, Nicholas and Ireland, Michael and Jones, Damien and Kripak, Yevgen and Lawrence, Jon and O’Brien, Ellie and Price, Ian and Robertson, Matthew and Schwab, Christian and Tinney, Chris and Vaccarella, Annino and Vest, Colin and Wright, Wright and Zhelem, Ross (2018) Veloce Rosso: Australia's new precision radial velocity spectrograph. In: Ground-Based and Airborne Instrumentation for Astronomy VII , 10-14 June 2018, Austin, Texas, United States.

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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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Additional Information: SPIE access is restricted but free access can be gained via the arxiv.org site: https://arxiv.org/abs/1807.01938 Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 July 2013 - 5 Sept 2019)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 July 2013 - 5 Sept 2019)
Date Deposited: 09 Sep 2019 05:27
Last Modified: 09 Sep 2019 05:27
Uncontrolled Keywords: precision radial velocity spectroscopy, doppler spectroscopy, ultra-stable spectrographs, simultaneous calibration, fibre optics, control systems, echelle spectrographs, high-resolution spectrographs
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020102 Astronomical and Space Instrumentation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1117/12.2312399
URI: http://eprints.usq.edu.au/id/eprint/34438

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