### Выдержка

The dynamics of circumbinary planetary systems (the systems in which the planets orbit a central binary) with a small binary mass ratio discovered to date is considered. The domains of chaotic motion have been revealed in the “pericentric distance–eccentricity” plane of initial conditions for the planetary orbits through numerical experiments. Based on an analytical criterion for the chaoticity of planetary orbits in binary star systems, we have constructed theoretical curves that describe the global boundary of the chaotic zone around the central binary for each of the systems. In addition, based on Mardling’s theory describing the separate resonance “teeth” (corresponding to integer resonances between the orbital periods of a planet and the binary), we have constructed the local boundaries of chaos. Both theoretical models are shown to describe adequately the boundaries of chaos on the numerically constructed stability diagrams, suggesting that these theories are efficient in providing analytical criteria for the chaoticity of planetary orbits.

Язык оригинала | английский |
---|---|

Страницы (с-по) | 474-481 |

Число страниц | 8 |

Журнал | Astronomy Letters |

Том | 42 |

Номер выпуска | 7 |

DOI | |

Состояние | Опубликовано - 1 июл 2016 |

### Отпечаток

### Предметные области Scopus

- Астрономия и астрофизика
- Космические науки и планетоведение

### Цитировать

*Astronomy Letters*,

*42*(7), 474-481. https://doi.org/10.1134/S1063773716060050

}

*Astronomy Letters*, том. 42, № 7, стр. 474-481. https://doi.org/10.1134/S1063773716060050

**On the stability of circumbinary planetary systems.** / Popova, E. A.; Shevchenko, I. I.

Результат исследований: Научные публикации в периодических изданиях › статья

TY - JOUR

T1 - On the stability of circumbinary planetary systems

AU - Popova, E. A.

AU - Shevchenko, I. I.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The dynamics of circumbinary planetary systems (the systems in which the planets orbit a central binary) with a small binary mass ratio discovered to date is considered. The domains of chaotic motion have been revealed in the “pericentric distance–eccentricity” plane of initial conditions for the planetary orbits through numerical experiments. Based on an analytical criterion for the chaoticity of planetary orbits in binary star systems, we have constructed theoretical curves that describe the global boundary of the chaotic zone around the central binary for each of the systems. In addition, based on Mardling’s theory describing the separate resonance “teeth” (corresponding to integer resonances between the orbital periods of a planet and the binary), we have constructed the local boundaries of chaos. Both theoretical models are shown to describe adequately the boundaries of chaos on the numerically constructed stability diagrams, suggesting that these theories are efficient in providing analytical criteria for the chaoticity of planetary orbits.

AB - The dynamics of circumbinary planetary systems (the systems in which the planets orbit a central binary) with a small binary mass ratio discovered to date is considered. The domains of chaotic motion have been revealed in the “pericentric distance–eccentricity” plane of initial conditions for the planetary orbits through numerical experiments. Based on an analytical criterion for the chaoticity of planetary orbits in binary star systems, we have constructed theoretical curves that describe the global boundary of the chaotic zone around the central binary for each of the systems. In addition, based on Mardling’s theory describing the separate resonance “teeth” (corresponding to integer resonances between the orbital periods of a planet and the binary), we have constructed the local boundaries of chaos. Both theoretical models are shown to describe adequately the boundaries of chaos on the numerically constructed stability diagrams, suggesting that these theories are efficient in providing analytical criteria for the chaoticity of planetary orbits.

KW - binary stars

KW - celestial mechanics

KW - numerical methods

KW - planetary systems

UR - http://www.scopus.com/inward/record.url?scp=84978274916&partnerID=8YFLogxK

U2 - 10.1134/S1063773716060050

DO - 10.1134/S1063773716060050

M3 - Article

AN - SCOPUS:84978274916

VL - 42

SP - 474

EP - 481

JO - Astronomy Letters

JF - Astronomy Letters

SN - 1063-7737

IS - 7

ER -