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Abstract: Using the period and mass data of two hundred and seventy-nine extrasolarplanets, we have constructed a coupled period-mass function through thenon-parametric approach. This analytic expression of the coupled period-massfunction has been obtained for the first time in this field. Moreover, due to amoderate period-mass correlation, the shapes of mass-period functions vary as afunction of period-mass. These results of mass and period functions give way totwo important implications: 1 the deficit of massive close-in planets isconfirmed, and 2 the more massive planets have larger ranges of possiblesemi-major axes. These interesting statistical results will provide importantclues into the theories of planetary formation.



Autor: Li-Chin Yeh 1, Yen-Chang Chang 1, Wen-Liang Hung 1, Ing-Guey Jiang 2 1National Hsinchu University of Education, Hsin-Chu, Taiwan,

Fuente: https://arxiv.org/



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