Stable Planetary Motion in Double Stars

E. Pilat-Lohinger, R. Dvorak, E. Bois, B. Funk

Publications: Contribution to bookContribution to proceedings

Abstract

The discovery of extra-solar planets in double star systems and the fact that double and multiple star systems are more numerous than single star systems like the sun (at least in the solar neighborhood) leads to a common interest of stability studies of such systems. As a global result we present the stable regions in binaries with different mass-ratios. Furthermore, we show the results of a numerical investigation for the binary γ Cephei. To distinguish between stable and chaotic motion we use different methods, i.e. the Fast Lyapunov Indicator (FLI), the Mean Exponential Growth Factor of Nearby Orbits (MEGNO), and straightforward orbital computations. The two chaos indicators are known to be fast methods for the determination of the orbital behavior.
Original languageEnglish
Title of host publicationExtrasolar Planets: Today and Tomorrow
Subtitle of host publicationASP Conference Proceedings, held at the Institut D'Astrophysique de Paris, France, 30 June - 4 July 2003
Editors Jean-Philippe Beaulieu
Place of PublicationSan Francisco
Pages410
Volume321
Publication statusPublished - 1 Dec 2004

Publication series

SeriesAstronomical Society of the Pacific Conference Series
Volume321

Austrian Fields of Science 2012

  • 103004 Astrophysics

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