The instability of planetary systems in binaries: how the Kozai mechanism leads to strong planet-planet interactions
(2007) In Monthly Notices of the Royal Astronomical Society 377(1). p.1-4- Abstract
- In this Letter we consider the evolution of a planetary system around a star inside a wide binary. We simulate numerically the evolution of the planetary orbits for both coplanar and highly inclined systems. We find that the Kozai mechanism operates in the latter case. This produces a highly eccentric outer planet the orbit of which crosses those of some of the inner planets. Strong planet-planet interactions then follow, resulting in the ejection of one or more planets. We note that planetary systems resembling our Solar system, formed around single stars in stellar clusters, may exchange into binaries and thus will be vulnerable to planet stripping. This process will reduce the number of Solar system-like planetary systems, and may... (More)
- In this Letter we consider the evolution of a planetary system around a star inside a wide binary. We simulate numerically the evolution of the planetary orbits for both coplanar and highly inclined systems. We find that the Kozai mechanism operates in the latter case. This produces a highly eccentric outer planet the orbit of which crosses those of some of the inner planets. Strong planet-planet interactions then follow, resulting in the ejection of one or more planets. We note that planetary systems resembling our Solar system, formed around single stars in stellar clusters, may exchange into binaries and thus will be vulnerable to planet stripping. This process will reduce the number of Solar system-like planetary systems, and may produce at least some of the observed extrasolar planets. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/657705
- author
- Malmberg, Daniel LU ; Davies, Melvyn B LU and Chambers, John E.
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- planetary, celestial mechanics, stellar dynamics, general, binaries, systems
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 377
- issue
- 1
- pages
- 1 - 4
- publisher
- Oxford University Press
- external identifiers
-
- wos:000246797900001
- scopus:34250687964
- ISSN
- 1365-2966
- DOI
- 10.1111/j.1745-3933.2007.00291.x
- language
- English
- LU publication?
- yes
- id
- b831af2e-05ae-459f-ae2b-00fc63ea8937 (old id 657705)
- date added to LUP
- 2016-04-01 12:27:14
- date last changed
- 2024-04-23 16:58:49
@article{b831af2e-05ae-459f-ae2b-00fc63ea8937,
abstract = {{In this Letter we consider the evolution of a planetary system around a star inside a wide binary. We simulate numerically the evolution of the planetary orbits for both coplanar and highly inclined systems. We find that the Kozai mechanism operates in the latter case. This produces a highly eccentric outer planet the orbit of which crosses those of some of the inner planets. Strong planet-planet interactions then follow, resulting in the ejection of one or more planets. We note that planetary systems resembling our Solar system, formed around single stars in stellar clusters, may exchange into binaries and thus will be vulnerable to planet stripping. This process will reduce the number of Solar system-like planetary systems, and may produce at least some of the observed extrasolar planets.}},
author = {{Malmberg, Daniel and Davies, Melvyn B and Chambers, John E.}},
issn = {{1365-2966}},
keywords = {{planetary; celestial mechanics; stellar dynamics; general; binaries; systems}},
language = {{eng}},
number = {{1}},
pages = {{1--4}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{The instability of planetary systems in binaries: how the Kozai mechanism leads to strong planet-planet interactions}},
url = {{http://dx.doi.org/10.1111/j.1745-3933.2007.00291.x}},
doi = {{10.1111/j.1745-3933.2007.00291.x}},
volume = {{377}},
year = {{2007}},
}