BD+36 3317: An algol type eclipsing binary in Delta Lyrae cluster

• Published in: New astronomy Vol. 17; no. 5; pp. 483 - 487
• Main Authors: Özdarcan, O., Sipahi, E., Dal, H.A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-07-2012
• Subjects: Algol; Astronomy; Binaries: eclipsing – stars; Clusters; Deltas; Eclipsing binary stars; Mathematical models; Photometry; Physical properties; Spectra; Stars: individual: (BD+36 3317); Techniques: photometric – (stars); Techniques: photometric – (stars); Binaries: eclipsing – stars; Stars: individual: (BD+36 3317)
• ISSN: 1384-1076; 1384-1092
• DOI: 10.1016/j.newast.2011.12.002

► We obtained UBV observations of Algol type eclipsing binary BD+36 3317. ► The system is accepted as a member of Delta Lyrae cluster. ► We inspected the effect of interstellar reddening for the colors of the system. ► We performed simultaneous light curve analysis by using WD code. ► We estimated absolute dimension and distance of the system from photometric results.
In this paper, we present standard Johnson UBV photometry of the eclipsing binary BD+36 3317 which is known as a member of Delta Lyrae (Stephenson 1) cluster. We determined colors and brightness of the system, calculated E(B−V) color excess. We discovered that the system shows total eclipse in secondary minimum. Using this advantage, we found that the primary component of the system has B9−A0 spectral type. Although there is no published orbital solution, we tried to estimate the physical properties of the system from simultaneous analysis of UBV light curves with 2003 version of Wilson–Devinney code. Then we considered photometric solution results together with evolutionary models and estimated the masses of the components as M1=2.5M⊙ and M2=1.6M⊙. Those estimations gave the distance of the system as 353pc. Considering the uncertainties in distance estimation, resulting distance is in agreement with the distance of Delta Lyrae cluster.