文章基本信息

标题：Analytical determination of orbital elements using Fourier analysis - I. The radial velocity case
其他标题：I. The radial velocity case
本地全文：下载
作者：J.-B. Delisle ; J.-B. Delisle ; D. Ségransan 等
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2016
卷号：590
页码：1-13
DOI：10.1051/0004-6361/201527944
语种：English
出版社：EDP Sciences
摘要：We describe an analytical method for computing the orbital parameters of a planet from the periodogram of a radial velocity signal. The method is very efficient and provides a good approximation of the orbital parameters. The accuracy is mainly limited by the accuracy of the computation of the Fourier decomposition of the signal which is sensitive to sampling and noise. Our method is complementary with more accurate (and more expensive in computer time) numerical algorithms (e.g. Levenberg-Marquardt, Markov chain Monte Carlo, genetic algorithms). Indeed, the analytical approximation can be used as an initial condition to accelerate the convergence of these numerical methods. Our method can be applied iteratively to search for multiple planets in the same system.
关键词：celestial mechanics;planets and satellites: general;methods: analytical;techniques: radial velocities