Gaia Data Release 3: Hot-star radial velocities

Understand

The second Gaia data release, DR2, contained radial velocities of stars with effective temperatures up to Teff = 6900 K.

• The third data release, Gaia DR3, extends this up to Teff = 14,500 K.
• We derive the radial velocities for hot stars (i.e.
• in the Teff = 6900 - 14,500 K range) from data obtained with the Radial Velocity Spectrometer (RVS) on board Gaia.