极端跨海王星天体中无轨道聚类的证据
地球与行星天体物理
2021-02-22 v3
摘要
极端跨海王星天体(ETNOs)在近日点经度 和升交点 上的明显聚类被归因于外太阳系中一颗 unseen 的 5-10 地球质量行星的引力效应。为研究选择偏差可能如何促成此聚类,我们考虑由暗能量巡天、外太阳系起源巡天以及 Sheppard 和 Trujillo 的巡天发现的 14 个 ETNOs。利用各巡天已发布的指向历史、深度和 TNO 追踪选择,我们计算这些天体与在 和 上均匀分布的基础母群体一致联合概率。我们发现,探测到的 ETNOs 的平均缩放近日点经度和轨道极与均匀群体一致的水平在 到 之间,因此得出结论:该样本未提供角度聚类的证据。
引用
@article{arxiv.2102.05601,
title = {No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects},
author = {K. J. Napier and D. W. Gerdes and Hsing Wen Lin and S. J. Hamilton and G. M. Bernstein and P. H. Bernardinelli and T. M. C. Abbott and M. Aguena and J. Annis and S. Avila and D. Bacon and E. Bertin and D. Brooks and D. L. Burke and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and M. Costanzi and L. N. da Costa and J. De Vicente and H. T. Diehl and P. Doel and S. Everett and I. Ferrero and P. Fosalba and J. García Bellido and D. Gruen and R. A. Gruendl and G. Gutierrez and D. L. Hollowood and K. Honscheid and B. Hoyle and D. J. James and S. Kent and K. Kuehn and N. Kuropatkin and M. A. G. Maia and F. Menanteau and R. Miquel and R. Morgan and A. Palmese and F. Paz-Chinchón and A. A. Plazas and E. Sanchez and V. Scarpine and S. Serrano and I. Sevilla-Noarbe and M. Smith and E. Suchyta and M. E. C. Swanson and C. To and A. R. Walker and R. D. Wilkinson},
journal= {arXiv preprint arXiv:2102.05601},
year = {2021}
}
备注
19 pages, 14 figures. Accepted to the Planetary Science Journal