On the possibility of habitable Trojan planets in binary star systems

TL;DR

This paper explores the potential for habitable Trojan planets in binary star systems by analyzing orbital stability and identifying promising candidate systems for such planets.

Contribution

It introduces new dynamical configurations for stable planetary orbits in binary systems, focusing on the possibility of habitable Trojan planets.

Findings

Two systems (HD 41004 and HD 196885) have small stable regions suitable for Trojan planets.

Binary star systems may host stable, habitable Trojan planets.

The study expands understanding of habitable zones in complex stellar environments.

Abstract

Approximately 60 percent of all stars in the solar neighbourhood (up to 80 percent in our Milky Way) are members of binary or multiple star systems. This fact led to the speculations that many more planets may exist in binary systems than are currently known. To estimate the habitability of exoplanetary systems, we have to define the so-called habitable zone (HZ). The HZ is defined as a region around a star where a planet would receive enough radiation to maintain liquid water on its surface and to be able to build a stable atmosphere. We search for new dynamical configurations - where planets may stay in stable orbits - to increase the probability to find a planet like the Earth. Therefore we investigated five candidates and found that two systems (HD 41004 and HD 196885) which have small stable regions.