On the Fundamental Mass-Period Functions of Extrasolar Planets
- 2010-06-28 (Mon.), 10:30 AM
- 中研院-蔡元培館 2F 208 演講廳
- 茶 會:上午10:10統計所蔡元培館二樓
- 洪 文 良 教授
- 國立新竹教育大學應用數學系
Abstract
Employing a catalog of 175 extrasolar planets (exoplanets) detected by the Doppler-shift method, we constructed the independent and coupled mass-period functions. It is the first time in this field that the selection effect is considered in the coupled mass-period functions. Our results are consistent with those of Tabachnik and Tremaine in 2002, with the major difference that we obtain a flatter mass function but a steeper period function. Moreover, our coupled mass-period functions show that about 2.5% of stars would have a planet with mass between Earth Mass and Neptune Mass, and about 3% of stars would have a planet with mass between Neptune Mass and Jupiter Mass. Joint work with Ing-Guey Jiang, Li-Chin Yeh and Yen-Chang Chang ?