Detection of extra-solar planets by GAIA photometry

被引:4
|
作者
Hog, E [1 ]
机构
[1] Copenhagen Univ Observ, DK-2100 Copenhagen O, Denmark
关键词
Group Observation; Astronomical Unit; Stellar Disk; Relative Radius; Simple Geometric Consideration;
D O I
10.1023/A:1015587130229
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The transit of exoplanets across a stellar disk will often occur in GAIA observations. A safe detection of the slight dimming of the star can be made many hundred times, i.e. in cases where the star is sufficiently constant in intensity, and the photometry is very precise. When combined with the simultaneous GAIA astrometry or ground-based radial velocities the scientific harvest is orbit, mass and mass density for hundreds of exoplanets. We have typically considered Jupiter-size planets at Earth-like distances from the stars.
引用
收藏
页码:139 / 142
页数:4
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