Dynamical evolution of the Gliese 436 planetary system
نویسندگان
چکیده
منابع مشابه
Dynamical evolution of the Gliese 436 planetary system - Kozai migration as a potential source for Gliese 436b's eccentricity
Context. The close-in planet orbiting GJ 436 presents a puzzling orbital eccentricity (e ≃ 0.14) considering its very short orbital period. Given the age of the system, this planet should have been tidally circularized a long time ago. Many attempts to explain this were proposed in recent years, either involving abnormally weak tides, or the perturbing action of a distant companion. Aims. In th...
متن کاملDynamical evolution of the Gliese 581 planetary system
Context. The M dwarf Gliese 581 has recently been found to harbour two super Earths in addition to an already known close-in Neptune-mass planet. Interestingly, these two planets are considered as potentially habitable, and recent theoretical works give further credit to this hypothesis, in particular for the outermost planet (Gl 581 d). Aims. In this paper, we address the issue of the dynamica...
متن کاملDynamical evolution of extrasolar planetary systems
To date, more than 130 extrasolar planets around main sequence stars are revealed mainly by the Doppler radial velocity measurements. Due to the observational biases, most of the detected planets are moving in orbits close to the host stars, with some in highly eccentric orbits. Dynamical processes during the late stage of planet formation are important to account for the present orbital proper...
متن کاملDynamical Simulations of the Planetary System HD69830
The star HD 69830 exhibits radial velocity variations attributed to three planets as well as infrared emission at 8 − 35μm attributed to a warm debris disk. Previous studies have developed models for the planet migration and mass growth (Alibert et al. 2005, 2006) and the replenishment of warm grains (Wyatt et al. 2007). In this paper, we perform n-body integrations in order to explore the impl...
متن کاملThe Secular Evolution and Dynamical Architecture of the Neptunian Triplet Planetary System Hd 69830
We perform numerical simulations to study the secular orbital evolution and dynamical structure in the HD 69830 planetary system, using the best-fit orbital solutions by Lovis and coworkers. In the simulations, we show that a triplet Neptunian system is stable for at least 2 Gyr and that the stability would not be greatly influenced even if we varied the planetary masses. In addition, we employ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201219183