• Methods for the Quasi-Periodic Variability Analysis in Blazars

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      https://www.ias.ac.in/article/fulltext/joaa/032/01-02/0079-0086

    • Keywords

       

      Method: quasi-periodic analysis; unevenly sampled time series analysis.

    • Abstract

       

      In this work, four methods are introduced to analyse the unevenly sampled data. The four methods are power spectral density, autocorrelation function, structure function and Jurkevich method. Some interesting mathematical links are derived amongst the four methods. These links show that the four methods have the same performance. For the Jurkevich method, the effect of the width of bins is apparent. If the width is half the time scale, the method has better performance.

    • Author Affiliations

       

      Y. Liu1 J. H. Fan1 H. G. Wang1 G. G. Deng1

      1. Center for Astrophysics, Guangzhou University, Guangzhou 510006, China.
    • Dates

       
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