CAOSP abstracts, Volume: 50, No.: 2, year: 2020

Author(s): Andrych, K.D.; Tvardovskyi, D.E.; Chinarova, L.L.; Andronov, I.L.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2, p. 557-559.
Date: 3/2020
Title: MAVKA: Investigation of stellar brightness extrema approximation stability for various methods
Keyword(s): Stars: variable, photometric observations, visual observations, brightness extrema
Pages: 557 -- 559
DOI: https://doi.org/10.31577/caosp.2020.50.2.557
NASA ADS Abstract Service: 2020CoSka..50..557A
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: We developed the software package MAVKA for the determination of characteristics of extrema (moment of extremum, magnitude) and their errors. The program realizes the application of 11 basic functions for approximation of extrema. We tested all these methods in two parts. In the first part we used generated data sets (various smooth curves with noise). We investigated deviations between generated and computed values of moments of extremum and magnitude, as well as execution time for different extrema parameters. In the second part we used real observations of different variable stars using photometric and visual observations from different databases.