The First Light Curve Solutions and Period Changes of EW Psc and HN Psc
| Autor: | Davoudi, F., Poro, A., Alicavus, F., Rahimi, J., Lashgari, E., Ghanbarzadehchaleshtori, M., Boudesh, A., Hoshyar, S., Asgarian, D., Pilghush, N., Modarres, S., Ebadi, S., Sojoudizadeh, A., Azarniur, S. Z., Karami, H., Ghanatghestani, A. Dehghani |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.newast.2020.101439 |
| Popis: | The first light curve solutions of the stars EW and HN in Pisces constellation are presented. Photometry, and its' periodic changes are calculated and discussed. The analysis of O-C diagram done by MCMC approach in OCFit code and the new ephemeris provided for two binary systems. The light curve solutions obtained. The results show that EW Psc is a near contact eclipsing binary system with a photometric mass ratio q = 0.587, and the fillout factor -0.034 and -0.018 for primary and secondary components, respectively. The solution results also show that the system HN Psc is a weak-contact W UMa eclipsing binary with a photometric mass ratio q = 0.853, and with fillout factor 5.6%. The light curves solutions required the cold spot accounting for the O'Connell effect. Comment: Submitted to: New Astronomy |
| Databáze: | arXiv |
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