Relative habitability of exoplanet systems with two giant planets

The architecture of a planetary system can influence the habitability planet via orbital effects, particularly in areas stability and eccentricity. Some these effects are readily apparent, when they occur on short timescales that easily numerically calculable. However, appearance evolution life take place gigayear timescales, long enough secular become important. These difficult to investigate, as direct integration requires significant computational time. In this paper, we apply semi-analytic framework conjunction with N-body integrations predictive techniques determine relative for an Earth-like two giant companions over multidimensional parameter space. Relative quantifies integrated probability compared containing only single planet. We find trends mass, eccentricity, location, spacing, inclination, alignment planets, including configurations where is more habitable due planets. As remains stable, moderate eccentricity excitation terrestrial be beneficial by increasing outer boundary zone through higher mean irradiance. our simulations, median ($\pm 1 \sigma$) has 0.11 (+0.16, -0.08), though it started circular. Low-mass, widely separated, moderately eccentric perturbing giants accomplish this, "ultra-habitable" configuration companions.