Multiple stellar systems under photometric and astrometric analysis

TL;DR

This paper presents a combined photometric and astrometric analysis method for multiple stellar systems, applying it to various eclipsing binaries and discussing its limitations and potential for future parallax estimation.

Contribution

A novel combined analysis method for eclipsing and astrometric binaries, with applications to multiple systems and discussion of its limitations and future modifications.

Findings

Analyzed 11 eclipsing systems using O-C diagrams.

Applied the method to several astrometric-eclipsing binaries.

Provided a catalog of systems with eclipsing binaries in astrometric binaries.

Abstract

The light-time effect method, its limitations and applications were studied. A powerful combined method of simultaneous analysis of the O-C diagrams and astrometric orbit in triple eclipsing-astrometric binaries was presented. Eleven eclipsing systems were studied in detail according to their O-C diagrams (RY Aqr, BF CMi, RW Cap, TY Cap, SS Cet, RR Dra, TY Del, TZ Eri, RV Per, UZ Sge, and BO Vul). The introduced method for studying the astrometric-eclipsing binaries was applied to QS Aql, VW Cep, Zeta Phe, V505 Sgr, HT Vir, and V2388 Oph. The algorithm for such an analysis was introduced and the its limitations were discussed. The catalogue of another systems, which contain eclipsing binaries in astrometric binaries, was presented. Such systems could be useful for prospective analysis. The method itself could be easily modified for estimation of the parallax of the individual systems.