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Using the Radial Velocity Spectrometer at the Dominion Astrophysical Observatory

Published online by Cambridge University Press:  12 April 2016

J. Skuljan ,
J. B. Hearnshaw  and
P. L. Cottrell
J. Skuljan
Affiliation:
Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
J. B. Hearnshaw
Affiliation:
Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
P. L. Cottrell
Affiliation:
Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

Abstract

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Two observing runs have been undertaken at the Dominion Astrophysical Observatory (DAO) using the radial velocity spectrometer (RVS). About 800 observations have been performed with both the K and F masks. All cross-correlation profiles have been divided by the corresponding flux monitor records and full gaussian functions have been fitted in order to determine the profile centers. A number of IAU standard radial velocity stars have been observed, with a typical internal precision for a given star of about 100 m s−1, which is a factor of two or three better than the usually adopted value for the RVS. Zero-point offsets between these observations and the standard values were also investigated.

Type
Part 2. Fundamental Concepts and Techniques
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 98 - 101
Copyright
Copyright © Astronomical Society of the Pacific 1999

References

Fletcher, J.M., Harris, H.C., McClure, R.D., & Scarfe, C.D. 1982, PASP, 94, 1017 CrossRefGoogle Scholar
Skuljan, J., Cottrell, P.L., & Hearnshaw, J.B. 1997, Proceedings of the ESA Symposium ‘Hipparcos - Venice ’97’, ESA SP-402, p. 525 Google Scholar