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

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

2011-04-15

arxiv.org/abs/1104.3092v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

24 pages, 8 figures, 3 tables; International Journal of Astrobiology (in press)

Scientific paper

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.

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