STUDY OF SHORT PERIOD VARIABLES AND SMALL AMPLITUDE PERIODIC VARIABLES

被引：2

作者：

Varadi, M. ^{[1
]}

Eyer, L. ^{[1
]}

Jordan, S. ^{[2
]}

Koester, D. ^{[3
]}

机构：

[1] Univ Geneva, Observ Geneva, Ch Maillettes 51, CH-1290 Sauverny, Switzerland

[2] Heidelberg Univ, ARI ZAH, D-69120 Heidelberg, Germany

[3] Univ Kiel, Inst Fur Theoret Phys & Astronphys, D-24098 Kiel, Germany

来源：

GAIA: AT THE FRONTIERS OF ASTROMETRY | 2011年 / 45卷

关键词：

WHITE-DWARF STARS; LIGHT CURVES; CONVECTION; GAIA;

D O I：

10.1051/eas/1045029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Our goal is to assess Gaia's performance on the period recovery of short period (p < 2 hours) and small amplitude variability. To reach this goal first we collected the properties of variable stars that fit the requirements described above. Then we built a database of synthetic light-curves with short period and low amplitude variability with time sampling that follows the Gaia nominal scanning law and with noise level corresponding to the expected photometric precision of Gaia. Finally we performed period search on the synthetic light-curves to obtain period recovery statistics. This work extends our previous period recovery studies to short period variable stars which have non-stationary Fourier spectra.

引用

页码：167 / +

页数：2

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