The first light-curve analysis of eclipsing binaries observed by the INTEGRAL/OMC

TL;DR

This paper presents the first light-curve analysis of three neglected Algol-type eclipsing binaries in Cygnus observed by INTEGRAL/OMC, providing initial insights into their properties.

Contribution

It offers the first light-curve study of these binaries using INTEGRAL/OMC data, expanding knowledge of their basic parameters.

Findings

Primary temperatures range from 9500 K to 10500 K

Inclinations are circa 73° for PV Cyg and V1011 Cyg, nearly 90° for V822 Cyg

All are likely main-sequence stars within their Roche lobes

Abstract

Three Algol-type binaries in Cygnus constellation were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. These data were processed and analyzed, resulting in a first light-curve study of these neglected eclipsing binaries. The temperatures of the primary components range from 9500 K to 10500 K and the inclinations are circa 73deg (for PV Cyg and V1011 Cyg), while almost 90deg for V822 Cyg. All of them seem to be main-sequence stars, well within their critical Roche lobes. Nevertheless, further detailed analyses are still needed.