On the performance of GAIA on photometry of eclipsing binaries: The case of four near-contact and contact systems
On the performance of GAIA on photometry of eclipsing binaries: The case of four near-contact and contact systems
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DOI：
10.1051/0004-6361:20030597
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发表时间：
2003-07
影响因子：
6.5
通讯作者：
P. Niarchos;V. Manimanis
中科院分区：
文献类型：
--
作者：
P. Niarchos;V. Manimanis
本文用光变曲线合成技术分析了四个食双星（两个近接触双星和两个接触双星）的光变曲线，导出了系统的几何、光度要素和物理参数。为了进行分析，我们使用了地面光度观测和依巴谷/第谷光度数据，这些数据模拟了欧空局批准的基石6号使命GAIA应获得的光度观测。对结果进行了比较，并讨论了用GAIA测光法计算恒星基本参数所能达到的精度。
The light curves of four eclipsing binaries (two near-contact and two contact) are analysed by means of light curve synthesis techniques to derive the geometric and photometric elements and the physical parameters of the systems. For the analysis we used ground based photometric observations and Hipparcos/Tycho photometric data, which mimic the photometric observations that should be obtained by GAIA, the approved Cornerstone 6 mission by ESA. The results are compared and the achievable precision of the basic stellar parameters derived by GAIA photometry is discussed.