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gaia early data release 3 documentation

2 Simulated data

2.4 Simulation known issues

We summarize here the main known issues of GUMS/GOG 20 simulations :

  • Very young stars have wrong circular velocity, see the correction procedure proposed in Section 2.2.2.

  • RR Lyrae stars are missing.

  • In GOG, the number of outliers, both in astrometry and photometry, is larger than expected from the simulated errors.