The origin of the occurrence rate profile of gas giants inside 100 d
Article
Article Title | The origin of the occurrence rate profile of gas giants inside 100 d |
---|---|
ERA Journal ID | 1074 |
Article Category | Article |
Authors | Ali-Dib, Mohamad (Author), Johansen, Anders (Author) and Huang, Chelsea X. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 469 (4), pp. 5016-5022 |
Number of Pages | 7 |
Year | 2017 |
Publisher | Oxford University Press |
Place of Publication | United States |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stx1272 |
Web Address (URL) | https://academic.oup.com/mnras/article/469/4/5016/3850230 |
Abstract | We investigate the origin of the period distribution of giant planets. We fit the bias-corrected distribution of gas-giant planets inside 300 d found by Santerne et al. using a planet formation model based on pebble accretion. We investigate two possible initial conditions: a linear distribution of planetary seeds, and seeds injected exclusively on the water and CO icelines. Our simulations exclude the linear initial distribution of seeds with a high degree of confidence. Our bimodal model based on snowlines gives a more reasonable fit to the data, with the discrepancies reducing significantly if we assume the water snowline to be a factor of 3-10 less efficient at producing planets. This model moreover performs better on both the warm/hot Jupiters ratio and a Gaussian mixture model as comparison criteria. Our results hint that the gas-giant exoplanets population inside 300 d is more compatible with planets forming preferentially at special locations. |
Keywords | planets and satellites: formation; Astrophysics - Earth and Planetary Astrophysics |
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 | University of Toronto, Canada |
Lund University, Sweden | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7271/the-origin-of-the-occurrence-rate-profile-of-gas-giants-inside-100-d
Download files
Published Version
The origin of the occurrence rate profile of gas giants inside 100 d.pdf | ||
File access level: Anyone |
69
total views50
total downloads7
views this month1
downloads this month