Kısa Dönemli Değen Çift Yıldızın İlk Fotometrik Analizi: KIC3848042

Yıl 2022, Cilt: 5 Sayı: 3, 1704 - 1719, 12.12.2022

Muhittin Şahan

https://doi.org/10.47495/okufbed.1062794

Öz

Bu çalışma, Kepler görüş alanındaki 0.4114527 güns yörünge periyoduna sahip KIC3848042 W UMa tipi değen çift yıldız sisteminin ilk fotometrik analizlerini vermektedir. Fotometrik veriler Wilson-Devinney tabanlı PHOEBE kodu kullanılarak modellenmiştir. Fotometrik ışık eğrisi modeli sonuçlarından, sistemin en iyi çözümü için kütle oranları 0.473, yörüngesel eğikliğin 34.0, ikinci bileşenin sıcaklığı 6330K ve yüzey potansiyelleri (1=2) 2.8 olduğu bulunmuştur. Sonuçlar, KIC3848042'nin, %8.3’lik bir değme derecesi ile yakın düzeyde değen bir çift yıldız sistemi olduğunu göstermiştir. KIC3848042'nin mutlak parametreleri yörünge ekseni a = 3.120Rʘ; kütleler M1 = 1.633Mʘ ve M2 = 0.770Mʘ; yarıçapları R1 = 1.406Rʘ ve R2 = 0.998Rʘ; ışıma güçleri L1 = 2.967Lʘ ve L2 = 1.432Lʘ olarak hesaplanmıştır. Ayrıca, mutlak ve bolometrik parlaklıkları ise sırasıyla birinci bileşen için MV,1=3m.973 ve Mbol,1=3m.589 ve ikinci bileşen için MV,2 =4m.763 ve Mbol,2=4m.380 olarak hesaplanmıştır. Bileşenlerin kütle oranı ve birincil bileşenin kütleleri göz önüne alındığında, KIC3848042 ana kolda W-alt türü W-Uma örten yıldız sistemidir. Bileşenlerin tayf türleri yaklaşık olarak F7V olduğu görülmektedir.

Anahtar Kelimeler

W UMa türü çift yıldız, Işık eğrisi analizi, Değen çift sistemler, KIC3848042

The First Photometric Analysis of Short-Period Contact Binary Star: KIC3848042

Öz

This study gives the first photometric analysis of W Uma type eclipsing contact binary KIC3848042 with an orbital period of 0.4114527 days in the Kepler field of view. The photometric data were modeled using the PHOEBE code based on Wilson-Devinney program. From the results of light-curve modeling, it was found that the best solution for system was to be a mass ratio of 0.473, orbital inclination of 34.0, temperature of the secondary star of 6330K and surface potentials (1=2) of 2.8. The results showed that KIC3848042 is a near-contact binary with a fill-out factor of 8.3%. The absolute parameters of KIC3848042 were calculated as orbital axis a = 3.120Rʘ; masses M1 = 1.633Mʘ and M2 = 0.770Mʘ; radii R1 = 1.406Rʘ and R2 = 0.998Rʘ; luminosities L1 = 2.967Lʘ and L2 = 1.432Lʘ. Moreover, their absolute and bolometric magnitudes were calculated to be MV,1=3m.973 and Mbol,1=3m.589 for the primary component and Mbol,2=4m.380 and MV,2=4 m.763, respectively. Considering the mass ratio and masses of the primary component, KIC3848042 is an W-subtype W-UMa eclipsing binary system in main sequence. The spectral types of the components seem to be approximately F7V.

Anahtar Kelimeler

UMa type binary stars, Light curve analysis, Contact binary systems, KIC3848042

Kaynakça

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