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Kwee-van Woerden. method: To use or not to use?
Mikulasek, Z.1,2; Chrastina, M.1; Liska, J.1; Zejda, M.1; Janik, J.1; Zhu LY(朱俐颖)3,4; Qian SB(钱声帮)3,4
Source PublicationCONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO
2014-03
Volume43
Issue3
Pages382-387
Contribution Rank第3完成单位
Indexed BySCI ; CPCI
Conference NameWorkshop on Observing Techniques, Instrumentation and Science for Metre-Class Telescopes
Conference Date2013-09-23
Conference PlaceStara Lesna, SLOVAKIA
KeywordKwee-van Woerden Method
Abstract

The credibility of orbital period analyses of eclipsing binaries strictly depends on the correctness of the observed mid-eclipse time determination, as well as the reliability of its uncertainty estimation. The majority of them have been determined by means of the Kwee-van Woerden method (KWM). There are also other possibilities - e.g. to use physical models of eclipsing binaries or light curve templates and to determine mid-eclipse times using the least square method (LSM). We compared results yielded by both methods by means of a computer simulation on the synthetic model of the AR Aur primary minimum. Minima times determined by the KWM and the exact LSM approach are nearly the same, while the scatter of LSM times is always smaller than the scatter of KWM times. KWM uncertainties are systematically underestimated. We think that the time is ripe for the Kwee-van Woerden method to retire.

Funding Projectproject[LH12175]
Funding OrganizationN/A
Language英语
Subject Area天文学 ; 天体物理学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle; Proceedings Paper
PublisherSLOVAK ACADEMY SCIENCES ASTRONOMICAL INST
Publication PlaceTATRANSKA LOMINICA, SK-059 60, SLOVAKIA
ISSN1335-1842
URL查看原文
WOS IDWOS:000338483100037
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9243
Collection双星与变星研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorMikulasek, Z.
Affiliation1.Department of Theoretical Physics and Astrophysics, Masaryk University, Brno, Kotl´aˇrsk´a 2, CZ-611 37 Brno, Czech Republic
2.Observatory and Planetarium of Johann Palisa, VˇSB–Technical University, Ostrava, Czech Republic
3.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China
Recommended Citation
GB/T 7714
Mikulasek, Z.,Chrastina, M.,Liska, J.,et al. Kwee-van Woerden. method: To use or not to use?[C]. TATRANSKA LOMINICA, SK-059 60, SLOVAKIA:SLOVAK ACADEMY SCIENCES ASTRONOMICAL INST,2014:382-387.
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