scholarly journals Error Analysis of the Light Curve Solution of Contact Binaries Based on the W-D Code

2021 ◽  
Vol 133 (1026) ◽  
pp. 084202
Author(s):  
Liang Liu
2012 ◽  
Vol 2012 ◽  
pp. 1-11
Author(s):  
Ronald G. Samec ◽  
Adam Jaso ◽  
Jesse White ◽  
Danny R. Faulkner ◽  
Nicholas Blum ◽  
...  

TYC 3034-0299-1 (CVn) is a magnetically active, contact binary, ROTSE variable. UBVRcIc light curves are presented along with a period study and a simultaneous UBVRI light curve solution. Our light curves show eclipse amplitudes of 0.72 and 0.62 mags (V) in the primary and secondary eclipses. Modeled results include a dark spot region, found at longitude 51°, a 24% Roche lobe fill-out, and a mass ratio of 0.48. A total eclipse is found to occur in the secondary eclipse making TYC 3034-0299-1 a W-type (less massive star is hotter) W UMa variable.


2014 ◽  
Vol 572 ◽  
pp. A71 ◽  
Author(s):  
P. Zasche ◽  
M. Wolf ◽  
J. Vraštil ◽  
J. Liška ◽  
M. Skarka ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Ronald G. Samec ◽  
Daniel Flaaten ◽  
James Kring ◽  
Danny R. Faulkner

We present the first precision UBVRcIc light curves, an initial period study, and a simultaneous light curve solution for the near-contact solar type eclipsing binary V530 And. Our observations were taken with the 0.81 m Lowell reflector on 27 and 29 September, 2011, with time being granted from the National Undergraduate Research Observatory (NURO). Our Wilson Devinney Program solution yields a semidetached, V1010 Oph configuration: the more massive component is filling its Roche lobe. The system is apparently approaching contact for the first time. It is not a classic Algol.


2005 ◽  
Vol 326 (8) ◽  
pp. 746-753 ◽  
Author(s):  
S. O. Selam ◽  
B. Albayrak ◽  
H. V. Şenavci ◽  
O. Aksu

1985 ◽  
Vol 90 ◽  
pp. 761 ◽  
Author(s):  
S. A. Naftilan ◽  
E. F. Milone

1986 ◽  
Vol 118 ◽  
pp. 299-300
Author(s):  
L.B.G. Knee ◽  
C. D. Scarfe ◽  
B. W. Baldwin ◽  
S. J. Meatheringham

UBV observations, plus a few in R and I, were obtained during the 1984 eclipse of RZ Ophiuchi. Bolometric corrections and temperature calibration, applied to the magnitudes and colours of the stars, were used to derive the ratio of the stellar radii, and a light curve solution was obtained with this parameter fixed. Neither component fills its Roche lobe, but the system may be at a late stage of case C mass transfer.


2010 ◽  
Vol 331 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Vlad Turcu ◽  
Alexandru Pop ◽  
Alexandru Marcu ◽  
Dan Moldovan

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