Gaia Data Release 2
Free Access

Table 2

Summary of the step-by-step selection criteria for candidates with a suspected periodic short-timescale variability.

Selection criterion Number of sources
More than 20 transits, with per-CCD photometry, in the G ~ 16.5 20 mag range 5.6 million
+ Flagged as a candidate with a short-timescale variability from the variogram 3.9 million
+ Preliminary selection of candidates with suspected fast periodic variability 16 703
+ After environment filtering and after removing spurious variability and eclipsing binaries 3018

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