Study of Short Period Variables and Small Amplitude Periodic Variables

Details Study of Short Period Variables and Small Amplitude Periodic Variables Study of Short Period Variables and Small Amplitude Periodic Variables

2010-11-22

arxiv.org/abs/1011.4885v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 2 figures, The proceedings of the "Gaia: at the frontiers of astrometry" conference will be published by EDP Sciences

Scientific paper

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.

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