Parameters of 20 newly detected eclipsing binaries from the Kepler database

TL;DR

This study reports the discovery and characterization of 20 new eclipsing binary systems from Kepler data, including detailed orbital and physical parameters, and identifies a Neptune-sized planetary candidate.

Contribution

It provides the first detailed modeling of 20 previously unknown eclipsing binaries and identifies a potential Neptune-sized planet candidate within the Kepler dataset.

Findings

Most binaries are well-detached and high-eccentric.

KID8552719 is a Neptune-sized planetary candidate.

The planetary candidate is outside the habitable zone.

Abstract

The paper presents a sample of newly detected eclipsing binaries from the public Kepler data. Orbits and fundamental parameters of 20 unknown eclipsing binaries were determined by modeling of their photometric data. Most of them are well-detached, high-eccentric binaries. We established that the target KID8552719 satisfied all widespread criteria for a planetary candidate. Fitting its light curve we obtained radius R_p=0.9 R_Nept, distance to the host star a = 42.58 Rsun = 0.198 AU and equilibrium temperatute T_p= 489 K. These values imply a Neptune-size object out of the habitable zone of the host star.