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Comparison of Selected Methods for Radial Velocity Measurements

Published online by Cambridge University Press:  09 August 2007

Štefan Parimucha  and
Petr Škoda
Štefan Parimucha
Affiliation:
Astronomical Institute, Academy of Sciences of the Czech Republic, Ondřejov email: [email protected] Institute of Physics, Faculty of Natural Sciences, Šafárik University, Košice, Slovakia, email: [email protected]
Petr Škoda
Affiliation:
Astronomical Institute, Academy of Sciences of the Czech Republic, Ondřejov email: [email protected]
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Abstract

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We present a comparison of selected methods for measuring radial velocities in stellar spectra. We compare cross-correlation, line-profile fitting with Gauss, Lorentz and Voigt functions and a less-known mirroring method. We discuss their applicability and precision and indicate their advantages and disadvantages. The mirroring method proved to be useful for the analysis of Be stars, but is not implemented in any major astronomical packages.

Keywords

spectroscopyradial velocity measurements
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 486 - 489
Copyright
Copyright © International Astronomical Union 2007

References

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