astro-ph/0510109 [abs, ps, pdf, other] :
Title: Trojan pairs in the HD 128311 and HD 82943 planetary systems?
Authors: Krzysztof Gozdziewski, Maciej Konacki
Categories: astro-ph
Comments: 10 pages (total), 9 figures, submitted to ApJ
Two nearby stars, HD 128311 and HD 82943, are believed to host pairs of Jupiter-like planets involved in a strong first order 2:1 mean motion resonance. In this work we reanalyze available radial velocity (RV) measurements and demonstrate that it is also possible to explain the observed RV variations of the parents stars as being induced by a pair of Trojan planets. We show that these Trojan configurations reside in extended zones of stability in which such systems may easily survive in spite of large masses of the planets, large eccentricities and nonzero mutual inclinations of their orbits.
http://arxiv.org/abs/astro-ph/0510109
Trojan pairs in the HD 128311 and HD 82943 planetary systems?
The whole thread (12 posts)
- Trojan pairs in the HD 128311 and HD 82943 planetary systems?
- On the relation between Hot-Jupiters and the Roche Limit
- The Formation and Evolution of Planetary Systems (FEPS): Discovery of an Unusual Debris System Associated with HD 12039
- Eccentricities of Planets in Binary Systems
- Hydraulic/Shock-Jumps in Protoplanetary Disks and Evolution of PAH Features from Proto- to Planetary Nebulae
- Eccentricities of Planets in Binary Systems
- The Formation and Evolution of Planetary Systems (FEPS): Discovery of an Unusual Debris System Associated with HD 12039
- On the relation between Hot-Jupiters and the Roche Limit