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Vladislav Khramtsov, V. N. Karazin Kharkiv National University,

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Presentation on theme: "Vladislav Khramtsov, V. N. Karazin Kharkiv National University,"— Presentation transcript:

1 STATISTICAL TIME-SERIES ANALYSIS OF PHOTOMETRIC DATA FOR VARIABLE STARS DETECTION
Vladislav Khramtsov, V. N. Karazin Kharkiv National University, Physical Department Lecturer: Volodymyr Akhmetov, Ph.D., Institute of Astronomy, V.N. Karazin Kharkiv National University

2 Observation equipment
0.7m reflector AZT-8 CCD camera ML-4710

3 Stellar fields 2013C 2014А 2014В 2015С 2013В 2015A 2013A 2015B

4 Synthetic Galaxy Model

5 Predicting of variable stars amount using Synthetic Galaxy Model and
“Kepler” data about ratio of variables 2013A 6.229 2013B 5.698 2013C 19.589 2014A 4.081 2014B 4.509 2015A 9.080 2015B 7.427 2015C 8.899 SUM 65.512

6 Galactic Dust Reddening and Extinction Map
А/Е(B-V) 2013В 2014A

7 Galactic Dust Reddening and Extinction Map
А/Е(B-V) 2014В 2015C

8 Information included in variability indices
K. V. Sokolovsky at all (MNRAS, 2016)

9 Information included in variability indices
Weighted standard deviation Median absolute deviation

10 Information included in variability indices
Peak-to-peak variability Normalized excess variance

11 2015C

12 2015C

13 2015C

14 2015C

15 2015C

16 2015C

17 Manual discovery (MaxIm DL)

18 AstPhot photometry

19

20

21

22

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