2006/06/27 by Ing-Guey Jiang, Ing‐Guey Jiang, Li-Chin Yeh +5
Physics and Astronomy · #Astro and Planetary Science #Astronomy and Astrophysical Research #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2006.10580.x
published as MNRAS 370, 1379 (2006) · published in MNRAS, the results of Cluster Analysis can be taken electronically from the main latex file for further comparisons and studies
openalex publication_date 2006/06/27 · arxiv created 2006/10/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We use both the conventional and more recently developed methods of cluster analysis to study the data of extrasolar planets (exoplanets). Using the data set with planetary mass M, orbital period P and orbital eccentricity e, we investigate the possible clustering in the ln M, ln P, ln P–ln M,e and lnP–e spaces. There are two main implications: (1) mass distribution is continuous, and (2) orbital population could be classified into three clusters, which correspond to the exoplanets in the regimes of tidal, ongoing tidal and disc interaction, respectively.