Exotic Earths: Forming Habitable Worlds with Giant Planet Migration (Science, 2006)



VPL Authors

Full Citation:
Raymond, S. N., Mandell, A. M., & Sigurdsson, S. (2006). Exotic Earths: Forming Habitable Worlds with Giant Planet Migration. Science, 313(5792), 1413–1416. https://doi.org/10.1126/science.1130461

Abstract:
Close-in giant planets (e.g., “hot Jupiters”) are thought to form far from their host stars and migrate inward, through the terrestrial planet zone, via torques with a massive gaseous disk. Here we simulate terrestrial planet growth during and after giant planet migration. Several-Earth-mass planets also form interior to the migrating jovian planet, analogous to recently discovered “hot Earths.” Very-water-rich, Earth-mass planets form from surviving material outside the giant planet's orbit, often in the habitable zone and with low orbital eccentricities. More than a third of the known systems of giant planets may harbor Earth-like planets.

URL:
https://science.sciencemag.org/content/313/5792/1413

VPL Research Tasks:
Task C: The Habitable Planet