Stable habitable zones of single Jovian planet systems
Article
Article Title | Stable habitable zones of single Jovian planet systems |
---|---|
ERA Journal ID | 1074 |
Article Category | Article |
Authors | Agnew, Matthew T. (Author), Maddison, Sarah T. (Author), Thilliez, Elodie (Author) and Horner, Jonathan (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 471 (4), pp. 4494-4507 |
Number of Pages | 14 |
Year | 2017 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/MNRAS/STX1449 |
Web Address (URL) | https://academic.oup.com/mnras/article/471/4/4494/3868208 |
Abstract | With continued improvement in telescope sensitivity and observational techniques, the search for rocky planets in stellar habitable zones is entering an exciting era. With so many exoplanetary systems available for follow-up observations to find potentially habitable planets, one needs to prioritize the ever-growing list of candidates. We aim to determine which of the known planetary systems are dynamically capable of hosting rocky planets in their habitable zones, with the goal of helping to focus future planet search programmes. We perform an extensive suite of numerical simulations to identify regions in the habitable zones of single Jovian planet systems where Earth-mass planets could maintain stable orbits, specifically focusing on the systems in the Catalog of Earth-like Exoplanet Survey Targets (CELESTA). We find that small, Earth-mass planets can maintain stable orbits in cases where the habitable zone is largely, or partially, unperturbed by a nearby Jovian, and that mutual gravitational interactions and resonant mechanisms are capable of producing stable orbits even in habitable zones that are significantly or completely disrupted by a Jovian. Our results yield a list of 13 single Jovian planet systems in CELESTA that are not only capable of supporting an Earth-mass planet on stable orbits in their habitable zone, but for which we are also able to constrain the orbits of the Earth-mass planet such that the induced radial velocity signals would be detectable with next generation instruments. |
Keywords | astrobiology; numerical methods; planets and satellites; dynamical evolution and stability |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | Swinburne University of Technology |
Division of Research and Innovation | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4xy0/stable-habitable-zones-of-single-jovian-planet-systems
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