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Steps Towards Absolute Accuracy In Radial Velocities1

Published online by Cambridge University Press:  12 April 2016

Dag Gullberg
Dag Gullberg*
Affiliation:
Lund Observatory, Box 43, SE-22100 Lund, Sweden

Abstract

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We are developing methods to reach high absolute accuracy in spectroscopic radial velocities for stars of different spectral types. The basic idea is to remove the effects from convection and surface gravity that cause large systematic errors, in order to improve the absolute accuracy of radial velocities by one order of magnitude. This paper briefly describes observations and methodology in computing the radial velocities.

Type
Part 2. Fundamental Concepts and Techniques
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 58 - 62
Copyright
Copyright © Astronomical Society of the Pacific 1999

Footnotes

1

Data were obtained at Observatoire de Haute-Provence, Prance

References

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