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In this work, we hunt for the best places to find exo-Earths in the currentlyknown exoplanet population. While it is still unclear whether Jupiter had abeneficial or detrimental effect on the creation of the right environment for ahabitable Earth to develop, we focus on the 51 multiple planet systems thathave at least one Jupiter-like planet and aim to identify which would be goodcandidates to host an exo-Earth. We conduct a series of numerical simulationsto identify dynamically stable regions of the habitable zone of the multipleexoplanet systems capable of hosting an Earth-mass planet. We produce acandidate list of 16 systems that could host such a stable exo-Earth in theirhabitable zone, and for which the induced radial velocity signal of ahypothetical one, two or four Earth-mass planet on the host star would bedetectable with the ESPRESSO spectrograph. We find that whilst thegravitational interactions with the massive planet nearest the habitable zoneare critical in determining stability, the secular resonant interactionsbetween multiple planets can also have a dramatic influence on the overallstability of the habitable zone.

Prospecting for exo-Earths in multiple planet systems with a gas giant