Light curve solution and orbital period analysis of the contact binary V842 Herculis

2005 ◽  
Vol 326 (8) ◽  
pp. 746-753 ◽  
Author(s):  
S. O. Selam ◽  
B. Albayrak ◽  
H. V. Şenavci ◽  
O. Aksu
Keyword(s):  
Light Curve ◽  
Orbital Period ◽  
Period Analysis ◽  
Contact Binary ◽  
Curve Solution ◽  
Light Curve Solution

scholarly journals UBVRI Photometric Analysis of the Solar-Type Eclipsing Binary TYC 3034-299-1

2012 ◽  
Vol 2012 ◽  
pp. 1-11
Author(s):  
Ronald G. Samec ◽  
Adam Jaso ◽  
Jesse White ◽  
Danny R. Faulkner ◽  
Nicholas Blum ◽  
...  
Keyword(s):  
Light Curve ◽  
Massive Star ◽  
Light Curves ◽  
Dark Spot ◽  
Mass Ratio ◽  
Photometric Analysis ◽  
Contact Binary ◽  
Solar Type ◽  
Curve Solution ◽  
Light Curve Solution

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.

scholarly journals The First Light Curve Solution of GW Leo and Refined Ephemeris of Two Contact Binary Systems

2021 ◽  
Vol 65 (7) ◽  
pp. 543-551
Author(s):  
A. Poro ◽  
A. Halavati ◽  
E. Lashgari ◽  
F. Davoudi ◽  
A. Gardi ◽  
...  
Keyword(s):  
Light Curve ◽  
Binary Systems ◽  
Contact Binary ◽  
Curve Solution ◽  
Light Curve Solution

scholarly journals Apsidal motion and a light curve solution for eighteen SMC eccentric eclipsing binaries

2014 ◽  
Vol 572 ◽  
pp. A71 ◽  
Author(s):  
P. Zasche ◽  
M. Wolf ◽  
J. Vraštil ◽  
J. Liška ◽  
M. Skarka ◽  
...  
Keyword(s):  
Light Curve ◽  
Eclipsing Binaries ◽  
Apsidal Motion ◽  
Curve Solution ◽  
Light Curve Solution

scholarly journals Light Curve and Orbital Period Analysis of the Eclipsing Binary AT Peg

2011 ◽  
Vol 7 (S282) ◽  
pp. 55-56
Author(s):  
Alexios Liakos ◽  
Panagiotis Niarchos ◽  
Edwin Budding
Keyword(s):  
Light Curve ◽  
Orbital Period ◽  
Time Effect ◽  
Light Curves ◽  
Period Analysis ◽  
Eclipsing Binary ◽  
Secular Changes ◽  
Photometric Observations ◽  
Photometric Elements

AbstractCCD photometric observations of the Algol-type eclipsing binary AT Peg have been obtained. The light curves are analyzed with modern techniques and new geometric and photometric elements are derived. A new orbital period analysis of the system, based on the most reliable timings of minima found in the literature, is presented and apparent period modulations are discussed with respect to the Light-Time effect (LITE) and secular changes in the system. The results of these analyses are compared and interpreted in order to obtain a coherent view of the system's behaviour.

scholarly journals BVRcIc Observations and Analysis of the Near-Contact Solar Type Eclipsing Binary, V530 Andromedae

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Ronald G. Samec ◽  
Daniel Flaaten ◽  
James Kring ◽  
Danny R. Faulkner
Keyword(s):  
Light Curve ◽  
Undergraduate Research ◽  
Initial Period ◽  
Light Curves ◽  
Eclipsing Binary ◽  
Massive Component ◽  
Solar Type ◽  
First Time ◽  
Curve Solution ◽  
Light Curve Solution

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.

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