Browsing by Author "Budding, Edwin"

Absolute parameters of young stars - II. V831 Centauri

Budding, Edwin; Erdem, Ahmet; Demircan, Osman; İnlek, Gülay (Oxford Univ Press, 2010)

Literature photometry and new high-resolution spectroscopy of V831 Cen are presented and analysed. Light and radial velocity curve fittings confirm the central pair of this young multiple system to be close to contact. ...

Effects of opacity on stellar radii and their relavance to observational data

İnlek, Gülay; Böke, Aysun; Yılmaz, Oktay; Budding, Edwin (2008)

We have examined the effect of varying opacities on envelope structure with the aid of Paczynski #8217;s public domain stellar modelling programs. For this, we prepared new opacity tables from the data of Kurucz[1], using ...

The role of stellar envelope convection in gravity-darkening and its relation to observational data

İnlek, Gülay; Böke, Aysun; Yılmaz, Oktay; Budding, Edwin (Elsevier Science Bv, 2007)

We study the role of convection in the surface heat flow of low mass stellar envelopes with the aid of Paczynski's public domain program program GOB. This role is important, for example, for the analysis of light curves ...

Structural constants of selected early-type binaries and their astrophysical implications

İnlek, Gülay; Budding, Edwin (Elsevier, 2023)

Theoretical values of the structural coefficient k2, have been calculated in dependance on mass and age. The results are relatively more accurately tested from observations of apsidal motion in young and massive binariy ...

Structure coefficients for different initial metallicities for use in stellar analysis

İnlek, Gülay; Budding, Edwin; Demircan, Osman (Springer, 2017)

"Internal structure coefficients for zero age Main Sequence (ZAMS) model stars with different initial metal-licities are presented. A series of (Eggleton) stellar models with masses between 1-40M(circle dot) and metallicities ...

Structure coefficients for Use in stellar analysis

İnlek, Gülay; Budding, Edwin (Cambridge Univ Press, 2012)

We give new values of the structural coefficients eta(j), and related quantities, for realistic models of distorted stars in close binary systems. Our procedure involves numerical integration of Radau's equation for detailed ...

Structure coefficients for use in stellar analysis

İnlek, Gülay; Budding, Edwin (Springer, 2012)

We present new values of the structural coefficients eta (j) , and related quantities, for realistic models of distorted stars in close binary systems. Our procedure involves numerical integration of Radau's equation for ...

Yıldız modellerinde nükleer enerji oluşum oranları ve gözlemsel kontrolleri

İnlek, Gülay (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2008)

Paczynski'nin GOB programı [1] yardımı ile düşük kütleli yıldız zarflarının yüzey ısı akışındaki konveksiyon rolünü çalıştık. 0.4 ve 1.1 M◎ kütle aralığında değen veya değmeye yakın olan çift yıldızların bileşenleri için ...