中文

55 Cancri星系是否真的处于3:1共振?

天体物理学 2007-05-23 v2

摘要

我们对55 Cnc系中行星的轨道解进行积分模拟。仿真结果表明,不仅三个共振参数θ1=λ13λ2+2ω~1\theta_{1}=\lambda_{1}-3\lambda_{2}+2\tilde\omega_{1}θ2=λ13λ2+2ω~2\theta_{2}=\lambda_{1}-3\lambda_{2}+2\tilde\omega_{2}θ3=λ13λ2+(ω~1+ω~2)\theta_{3}=\lambda_{1}-3\lambda_{2}+(\tilde\omega_{1}+\tilde\omega_{2})分别共振 librate,而且相对近似长Δω\Delta\omega在数百万年内关于250250^{\circ}进行 librate。结果表明该系统存在3:1共振和近似共振。我们强调,轨道共振和近似锁定可作为稳定系统的两个重要机制。此外,我们进一步通过将数值结果与Laplace-Lagrange secular理论结果进行比较,研究了该系统的世界面动力学。

关键词

引用

@article{arxiv.astro-ph/0301636,
  title  = {Could the 55 Cancri Planetary System Really Be in the 3:1 Mean Motion Resonance?},
  author = {Ji Jianghui and H. Kinoshita and Liu Lin and Li Guangyu},
  journal= {arXiv preprint arXiv:astro-ph/0301636},
  year   = {2007}
}

备注

12 Pages, 4 figures, Published by ApJ Letters, 585, 2003 March 10 (Figures now included to match the publication)