On methods for the light curves extrema determination

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Authors	MIKULÁŠEK Zdeněk WOLF Marek ZEJDA Miloslav PECHAROVÁ Petra
Year of publication	2006
Type	Article in Periodical
Magazine / Source	Astrophysics and Space Science
MU Faculty or unit	Faculty of Science
Citation
Field	Astronomy and astrophysics
Keywords	Methods: data analysis; Kwee-van Woerden method; LSM; SX Phe variables; Star: individual: BL Cam
Description	We present two methods for the determination of moments of extrema and their errors appropriate for the analysis of light variations of variable objects. The method I is suitable for determination of times of extrema of non-periodical variables or objects, whose light curves vary. The method II is apt for {O-C} analyses of objects whose light curves are more or less repeating. Both methods are displayed on the analysis of BL Cam and compared with the Kwee-van Woerden method.
Related projects:	New approaches to variable stars data processing and interpretation Circumstellar envelopes of hot stars Fotometrický výzkum zákrytových dvojhvězd