Liquidus temperatures determination of the dispersed binary system

2008 ◽  
Vol 471 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
A. Jamil ◽  
T. Kousksou ◽  
Y. Zeraouli ◽  
J.-P. Dumas
2020 ◽  
Vol 29 (1) ◽  
pp. 72-80 ◽  
Author(s):  
Fatemeh Davoudi ◽  
Atila Poro ◽  
Fahri Alicavus ◽  
Afshin Halavati ◽  
Saeed Doostmohammadi ◽  
...  

AbstractNew observations of the eclipsing binary system V1848 Ori were carried out using the V filter resulting in a determination of new times of minima and new ephemeris were obtained. We presented the first complete analysis of the system’s orbital period behavior and analysis of O-C diagram done by the GA and MCMC approaches in OCFit code. The O-C diagram demonstrates a sinusoidal trend in the data; this trend suggests a cyclic change caused by the LITE effect with a period of 10.57 years and an amplitude of 7.182 minutes. It appears that there is a third body with mass function of f (m3) = 0.0058 M⊙ in this binary system. The light curves were analyzed using the Wilson-Devinney code to determine some geometrical and physical parameters of the system. These results show that V1848 Ori is a contact W UMa binary system with the mass ratio of q = 0.76 and a weak fillout factor of 5.8%. The O’Connell effect was not seen in the light curve and there is no need to add spot.


Author(s):  
Jifang Xu ◽  
Lei Tang ◽  
Minqi Sheng ◽  
Jianchao Li ◽  
Jieyu Zhang ◽  
...  

2020 ◽  
Vol 341 (10) ◽  
pp. 989-995
Author(s):  
Richard Bischoff ◽  
Markus Mugrauer ◽  
Oliver Lux ◽  
Tamara Zehe ◽  
Therese Heyne ◽  
...  

1993 ◽  
Vol 137 ◽  
pp. 472-473
Author(s):  
S. Ferluga ◽  
M. Antillon

AbstractA numerical method is presented, which is able to determine quantitatively the age t and the initial abundances of helium and metals (Y0, Z0) of a given binary system. Input data are simply the values of mass m, temperature Teff and surface gravity g, of both stars. The procedure works for detached main-sequence binaries, and it does not require any preliminary hypothesis about surface abundances or age. It is assumed that the two stars evolve parallely with no interaction.


2015 ◽  
Author(s):  
Georgina Blay ◽  
Catherine Lovekin
Keyword(s):  

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