Kwee-van Woerden method: To use or not to use?

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Publikace nespadá pod Pedagogickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
Název česky Kwee-van Woerdenova metoda: používat či ne?
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MIKULÁŠEK Zdeněk CHRASTINA Marek LIŠKA Jiří ZEJDA Miloslav JANÍK Jan ZHU Liying QIAN Shengbang

Rok publikování 2014
Druh Článek v odborném periodiku
Časopis / Zdroj Contributions of the Astronomical Observatory Skalnaté Pleso
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://www.ta3.sk/caosp/Eedition/Abstracts/2014/Vol_43/No_3/pp382-387_abstract.html
Obor Astronomie a nebeská mechanika, astrofyzika
Klíčová slova metoda Kwee-van Woerden
Popis 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.
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