Manuscript Title:

EVALUATION OF PERIOD VARIATION OF V338 HERCULIS ALGOL BINARY STARS

Author:

AVEN M. HAMEDAMEN, ISMAIL MUSA MURAD

DOI Number:

DOI:10.17605/OSF.IO/R6W87

Published : 2023-06-10

About the author(s)

1. AVEN M. HAMEDAMEN - Ph.D. Astrophysics, Assistant Lecture, Physics Department, College of Education, Salahaddin University- Erbil, 44001, Erbil, Iraq.
2. ISMAIL MUSA MURAD - Ph.D. Astrophysics, Assistant professor, Physics Department, College of Education, Salahaddin University, Department of Physics, Faculty of Education, Tishk International University, Erbil, Kurdistan Region, Iraq.

Full Text : PDF

Abstract

Aims: We intend to derive the absolute parameters of the V338 her component, interpret the variations in their orbital periods, and discuss their evolutionary status. Methods: We have obtained new and comprehensive multi-filter light curves of the eclipsing binary V338 Her. Analyzed with modern methods: Moreover, we acquired new photometric observations during the secondary eclipses of V338 Her. Results: We derive reliable photometric data for V338 Her's principal stars. In the case of V338 her, statistical tests of orbital period analysis for all systems are extremely reassuring. By incorporating a third light option into photometric analyses, the light-Time Effect (LITE) results are verified. Light curve solutions provide the means for calculating the absolute parameters of the system's components and estimating their current evolutionary status with reliability. Conclusions: Star is confirmed as classical Algol with a relatively low mass in configurations of a similar nature. V338 her continues to transmit matter between its components, sparking interest in the predictability of Algols' evolutionary histories.


Keywords

Eclipsing stars; Individual (V338 Herculis); star spots; Third body.