Data Analysis on the Extra-solar Planets Using Robust Clustering

Abstract

We use both the conventional and more recently developed methods of cluster analysis to study the data of extra-solar planets. 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 ln P-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, on-going tidal and disc interaction, respectively.

published in MNRAS, the results of Cluster Analysis can be taken electronically from the main latex file for further comparisons and studies

References in corpus (2)

• The Dynamical Simulations of the Planets Orbiting GJ 876
• Could the 55 Cancri Planetary System Really Be in the 3:1 Mean Motion Resonance?

Cited by in corpus (3)

• Extrasolar planet taxonomy: a new statistical approach
• On the Mass-Period Distributions and Correlations of Extrasolar Planets
• A Possible Correlation between the Gaseous Drag Strength and Resonant Planetesimals in Planetary Systems