The origin of the occurrence rate profile of gas giants inside 100 d
(2017) In Monthly Notices of the Royal Astronomical Society 469(4). p.5016-5022- 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... (More)
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.
(Less)
- author
- Ali-Dib, Mohamad ; Johansen, Anders LU and Huang, Chelsea X.
- organization
- publishing date
- 2017-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Planets and satellites: formation
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 469
- issue
- 4
- pages
- 7 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:85045925336
- ISSN
- 0035-8711
- DOI
- 10.1093/mnras/stx1272
- language
- English
- LU publication?
- yes
- id
- c8ed3a2c-db7c-4901-b886-cc83f127ccb6
- date added to LUP
- 2019-05-22 17:47:08
- date last changed
- 2024-03-19 10:06:40
@article{c8ed3a2c-db7c-4901-b886-cc83f127ccb6,
abstract = {{<p>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.</p>}},
author = {{Ali-Dib, Mohamad and Johansen, Anders and Huang, Chelsea X.}},
issn = {{0035-8711}},
keywords = {{Planets and satellites: formation}},
language = {{eng}},
month = {{01}},
number = {{4}},
pages = {{5016--5022}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{The origin of the occurrence rate profile of gas giants inside 100 d}},
url = {{http://dx.doi.org/10.1093/mnras/stx1272}},
doi = {{10.1093/mnras/stx1272}},
volume = {{469}},
year = {{2017}},
}