On the Period-Mass Functions of Extrasolar Planets
Abstract
Using the period and mass data of two hundred and seventy-nine extrasolar planets, we have constructed a coupled period-mass function through the non-parametric approach. This analytic expression of the coupled period-mass function has been obtained for the first time in this field. Moreover, due to a moderate period-mass correlation, the shapes of mass/period functions vary as a function of period/mass. These results of mass and period functions give way to two important implications: (1) the deficit of massive close-in planets is confirmed, and (2) the more massive planets have larger ranges of possible semi-major axes. These interesting statistical results will provide important clues into the theories of planetary formation.
Keywords
Cite
@article{arxiv.0909.1604,
title = {On the Period-Mass Functions of Extrasolar Planets},
author = {Li-Chin Yeh and Yen-Chang Chang and Wen-Liang Hung and Ing-Guey Jiang},
journal= {arXiv preprint arXiv:0909.1604},
year = {2009}
}
Comments
3 pages, 1 figure, in Proceedings of the 10th Asian-Pacific Regional IAU Meeting, page 80-82, 2009