The first light curve solutions and period changes of EW Psc and HN Psc
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Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The first light curve solutions of the stars EW and HN in the Pisces constellation are presented. Photometry, and its' periodic changes are calculated and discussed. The analysis of the O-C diagram is done by the MCMC approach in the OCFit code and a new ephemeris is provided for the two binary systems. 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 is -0.034 and -0.018 for the 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 a fillout factor of 5.6%. The light curves solutions required a cold spot to account for the O'Connell effect.
Açıklama
Anahtar Kelimeler
Photometry, Ephemeris, O'Connell, Individual, EW Psc and HN Psc
Kaynak
New Astronomy
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
81
