No Giant Planet Pileup Near 1 AU [EPA]

http://arxiv.org/abs/1802.06044


A pileup near 1~AU in the semimajor axis distribution of giant exoplanets has been visually identified using log-spaced distribution plots. Here we propose that looking for features in a log-spaced semimajor axis distribution of giant planets is problematic. We use the Bayesian Blocks algorithm to analyze the linear-spaced semimajor axis distribution, and find that the apparent pileup is not significant.

Read this paper on arXiv…

A. Wise and S. Dodson-Robinson
Mon, 19 Feb 18
2/41

Comments: 3 pages, 1 figure, accepted to RNAAS Feb 8, 2018