Preliminary results for the triple system AV CMi

TL;DR

This paper presents new photometric data and analysis of the eclipsing binary AV CMi, revealing a third body with a short orbital period and discussing its possible nature.

Contribution

It provides the first light elements for the third body in AV CMi and discusses its potential characteristics based on systematic observations.

Findings

Detection of a third body orbiting AV CMi with a 0.52-day period

Complete light curves analyzed using Wilson-Devinney code

First estimation of the third body's light elements and nature

Abstract

New CCD photometric observations in V, R and I filters of the eclipsing binary AV CMi have been obtained. The complete light curves are analyzed with the Wilson-Devinney code and new geometric and photometric elements are derived. Moreover, 2-year systematic observations of the system revealed the existence of a third body orbiting around one of the components with an approximate period of 0.52 days. The first light elements for this additional component are given and its nature is discussed.