Cross-correlation and maximum-likelihood analysis: a new approach to combining cross-correlation functions

被引：115
|
作者：
Zucker, S [1 ]
机构：
[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Dept Geophys & Planetary Sci, IL-69978 Tel Aviv, Israel
[2] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Wise Observ, IL-69978 Tel Aviv, Israel
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2003年 / 342卷 / 04期
关键词：
methods : data analysis; methods : statistical; techniques : radial velocities; techniques : spectroscopic;
D O I：
10.1046/j.1365-8711.2003.06633.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
This paper presents a new approach to combining 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 HD 41004.
引用
收藏
页码：1291 / 1298
页数：8
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