EAS Publications Series
Volume 45, 2010GAIA: At the Frontiers of Astrometry
|Page(s)||167 - 172|
|Published online||15 February 2011|
C. Turon, F. Meynadier and F. Arenou (eds)
EAS Publications Series, 45 (2010) 167-172
Study of short period variables and small amplitude periodic variables
Geneva Observatory, University of Geneva,
Ch. des Maillettes
2 ARI/ZAH, Univ. of Heidelberg, Mönchhofstr. 12-14, 69120 Heidelberg, Germany
3 Institut für Theoretische Physik und Astrophysik, University of Kiel, Leibnizstraße 15, 24098 Kiel, Germany
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.
© EAS, EDP Sciences 2011
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