Case Studies of Habitable Trojan Planets in the System of HD 23079

TL;DR

This study explores the potential for Earth-mass habitable Trojan planets in the HD 23079 system, showing their existence depends on orbital parameters and initial conditions, with some becoming habitable moons.

Contribution

It provides new insights into the conditions under which habitable Trojan planets can exist in systems with Jupiter-like planets.

Findings

Earth-mass habitable Trojans are possible in HD 23079.

Orbital parameters significantly influence habitability.

Some Earth-mass planets become habitable moons.

Abstract

We investigate the possibility of habitable Trojan planets in the HD 23079 star-planet system. This system consists of a solar-type star and a Jupiter-type planet, which orbits the star near the outer edge of the stellar habitable zone in an orbit of low eccentricity. We find that in agreement with previous studies Earth-mass habitable Trojan planets are possible in this system, although the success of staying within the zone of habitability is significantly affected by the orbital parameters of the giant planet and by the initial condition of the theoretical Earth-mass planet. In one of our simulations, the Earth-mass planet is captured by the giant planet and thus becomes a habitable moon.