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 PriceMatthew Robertson, Christian Schwab, Chris Tinney, Annino Vaccarella, Colin Vest, Duncan Wright, Ross Zhelem

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationGround-based and Airborne Instrumentation for Astronomy VII
EditorsLuc Simard, Luc Simard, Christopher J. Evans, Hideki Takami
PublisherSPIE
ISBN (Print)9781510619579
DOIs
Publication statusPublished - 2018
EventGround-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States
Duration: 10 Jun 201814 Jun 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10702
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-based and Airborne Instrumentation for Astronomy VII 2018
Country/TerritoryUnited States
CityAustin
Period10/06/1814/06/18

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