The Period-Ratio and Mass-Ratio Correlation in Extra-Solar Multiple Planetary Systems
Earth and Planetary Astrophysics
2015-06-23 v1
Abstract
Employing the data from orbital periods and masses of extra-solar planets in 166 multiple planetary systems, the period-ratio and mass-ratio of adjacent planet pairs are studied. The correlation between the period-ratio and mass-ratio is confirmed and found to have a correlation coefficient of 0.5303 with a 99% confidence interval (0.3807, 0.6528). A comparison with the distribution of synthetic samples from a Monte Carlo simulation reveals the imprint of planet-planet interactions on the formation of adjacent planet pairs in multiple planetary systems.
Keywords
Cite
@article{arxiv.1501.03562,
title = {The Period-Ratio and Mass-Ratio Correlation in Extra-Solar Multiple Planetary Systems},
author = {Ing-Guey Jiang and Li-Chin Yeh and Wen-Liang Hung},
journal= {arXiv preprint arXiv:1501.03562},
year = {2015}
}
Comments
accepted by MNRAS Letters, a hint of planet-planet interactions is revealed