PMO OpenIR
The Scattering Outcomes of Kepler Circumbinary Planets: Planet Mass Ratio
Gong,Yan-Xiang1,2; Ji,Jianghui1
2017-10-12
Source PublicationThe Astronomical Journal
ISSN0004-6256
Volume154Issue:5
AbstractAbstract Recent studies reveal that the free eccentricities of Kepler-34b and Kepler-413b are much larger than their forced eccentricities, implying that scattering events may take place in their formation. The observed orbital configuration of Kepler-34b cannot be well reproduced in disk-driven migration models, whereas a two-planet scattering scenario can play a significant role of shaping the planetary configuration. These studies indicate that circumbinary planets discovered by Kepler may have experienced scattering process. In this work, we extensively investigate the scattering outcomes of circumbinary planets focusing on the effects of planet mass ratio. We find that the planetary mass ratio and the the initial relative locations of planets act as two important parameters that affect the eccentricity distribution of the surviving planets. As an application of our model, we discuss the observed orbital configurations of Kepler-34b and Kepler-413b. We first adopt the results from the disk-driven models as the initial conditions, then simulate the scattering process that occurs in the late evolution stage of circumbinary planets. We show that the present orbital configurations of Kepler-34b and Kepler-413b can be well reproduced when considering a two unequal-mass planet ejection model. Our work further suggests that some of the currently discovered circumbinary single-planet systems may be survivors of original multiple-planet systems. The disk-driven migration and scattering events occurring in the late stage both play an irreplaceable role in sculpting the final systems.
Keywordbinaries: close methods: numerical planets and satellites: dynamical evolution and stability planets and satellites: individual (Kepler-34b, Kepler-413b)
DOI10.3847/1538-3881/aa8c7c
Language英语
WOS IDIOP:0004-6256-154-5-aa8c7c
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22770
Collection中国科学院紫金山天文台
Affiliation1.CAS Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China; yxgong@pmo.ac.cn, jijh@pmo.ac.cn
2.College of Physics and Electronic Engineering, Taishan University, Taian 271000, China
Recommended Citation
GB/T 7714
Gong,Yan-Xiang,Ji,Jianghui. The Scattering Outcomes of Kepler Circumbinary Planets: Planet Mass Ratio[J]. The Astronomical Journal,2017,154(5).
APA Gong,Yan-Xiang,&Ji,Jianghui.(2017).The Scattering Outcomes of Kepler Circumbinary Planets: Planet Mass Ratio.The Astronomical Journal,154(5).
MLA Gong,Yan-Xiang,et al."The Scattering Outcomes of Kepler Circumbinary Planets: Planet Mass Ratio".The Astronomical Journal 154.5(2017).
Files in This Item:
File Name/Size DocType Version Access License
2017191.pdf(2401KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gong,Yan-Xiang]'s Articles
[Ji,Jianghui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gong,Yan-Xiang]'s Articles
[Ji,Jianghui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gong,Yan-Xiang]'s Articles
[Ji,Jianghui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2017191.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.