AAVSO: American Association of Variable Star Observers

Preliminary Modeling of the Eclipsing Binary Star GSC 05765-01271

Volume 45 number 2 (2017)

Recent AAVSO Volumes are restricted to AAVSO Members. Please consider joining

Sara Marullo
Astronomical Observatory, DSFTA - University of Siena (K54), via Roma 56, Siena, 53100, Italy; sara.marullo@student.unisi.it
Alessandro Marchini
Astronomical Observatory, DSFTA - University of Siena (K54), via Roma 56, Siena, 53100, Italy; alessandro.marchini@unisi.it
Lorenzo Franco
Balzaretto Observatory (A81), Rome, Italy
Riccardo Papini
Wild Boar Remote Observatory (K49), via Potente 52, San Casciano in val di Pesa, Florence, 50026, Italy
Fabio Salvaggio
Wild Boar Remote Observatory (K49), via Potente 52, San Casciano in val di Pesa, Florence, 50026, Italy

Abstract

The authors discovered the eclipsing binary star system GSC 05765-01271 on August 19, 2015; here a preliminary model is presented. Lacking spectroscopic radial velocity data, period-based empirical relations have been used in order to constrain physical parameters as masses and radii. The effective temperature has been evaluated using color index (V–R) and spectral type estimated from a composite spectrum. These parameters were used as input to obtain a preliminary model of this binary system with Binary Maker 3 and PHOEBE software.