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

TL;DR

This study presents photometric analysis of the eclipsing binary BD+36 3317 in the Delta Lyrae cluster, estimating its physical properties and confirming its cluster membership.

Contribution

First detailed photometric and physical property analysis of BD+36 3317 using UBV data and Wilson-Devinney modeling.

Findings

Primary component is B9 - A0 spectral type.

System distance estimated at 353 pc, consistent with Delta Lyrae cluster.

Total eclipse observed in secondary minimum.

Abstract

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 = 2.5 Msun and M2 = 1.6 Msun. Those estimations gave the distance of the system as 353 pc. Considering the uncertainties in distance estimation, resulting distance is in agreement with the distance of Delta Lyrae cluster.