Finding white dwarfs with transit searches

被引：13

作者：

Farmer, AJ ^{[1
]}

Agol, E ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 592卷 / 02期

关键词：

binaries : eclipsing; planetary systems; techniques : photometric; white dwarfs;

D O I：

10.1086/375806

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We make predictions for the rate of discovery of eclipsing white dwarf-main-sequence (WD-MS) binaries in terrestrial-planet transit searches, taking the planned Kepler and Eddington missions as examples. We use a population synthesis model to characterize the Galactic WD-MS population, and we find that, despite increased noise due to stellar variability compared with the typical planetary case, discovery of greater than or similar to10(2) nonaccreting, eclipsing WD-MS systems is likely using Kepler and Eddington, with periods of 2-20 days and transit amplitudes of \Deltam\ similar to10(-4+/-0.5) mag. Follow-up observations of these systems could accurately test the theoretical white dwarf mass-radius relation or theories of binary star evolution.

引用

页码：1151 / 1155

页数：5

共 24 条

[1] Occultation and microlensing [J].