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gaia data release 3 documentation

20.14 Performance verification

20.14.4 gold_sample_oba_stars

A golden sample of O, B and A type stars.
A list of Gaia DR3 source IDs of O, B, and A-type stars having an effective temperature estimate provided by ESP-HS or/and GSP-Phot greater than 7 500 K. Based on the information available in the Gaia DR3 catalogue, various filters were applied in order to reduce as much as possible the pollution from other types of targets. See Gaia Collaboration et al. (2022c) for more details.

Columns description:

source_id : Unique source identifier (unique within a particular Data Release) (long)

A unique single numerical identifier of the source obtained from gaia_source (for a detailed description see gaia_source.source_id).

vtan_flag : Flag indicating whether the tangential velocity is above 180 km s-1 (int)

The flag takes the value 1 when its barycentric tangential velocity (proper motion times 1000/parallax) is larger than 180 km s-1 and a value of 0 otherwise.