Cross-Correlation and Maximum Likelihood Analysis: A New Approach to Combine Cross-Correlation Functions

Details Cross-Correlation and Maximum Likelihood Analysis: A New Approach to Combine Cross-Correlation Functions Cross-Correlation and Maximum Likelihood Analysis: A New Approach to Combine Cross-Correlation Functions

2003-03-18

arxiv.org/abs/astro-ph/0303426v1

Mon.Not.Roy.Astron.Soc. 342 (2003) 1291

Astronomy and Astrophysics

Astrophysics

6 pages, 7 figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06633.x

This paper presents a new approach to combine cross-correlation functions. The combination is based on a maximum-likelihood approach and uses a non-linear combination scheme. It can be effective for radial-velocity analysis of multi-order spectra, or for analysis of multiple exposures of the same object. Simulations are presented to show the potential of the suggested combination scheme. The technique has already been used to detect a very faint companion of HD41004.

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