RAVE Data Release Five Complements Gaia

The new data release (DR5) of the RAdial Velocity Experiment (RAVE) includes radial velocities of 520,781 spectra of 457,588 individual stars, of which 215,590 individual stars are released in the Tycho-Gaia astrometric solution (TGAS) in Gaia DR1. Therefore, RAVE contains the largest TGAS overlap of the recent and ongoing Milky Way spectroscopic surveys. Combining RAVE with TGAS brings the uncertainties in space velocities down by a factor of two for stars in the RAVE volume — 10 kilometers/second uncertainties in space velocities are now able to be derived for the majority (70%) of the RAVE-TGAS sample, providing a powerful platform for chemo-dynamic analyses of the Milky Way. Most of the RAVE stars also contain stellar parameters (effective temperature, surface gravity, overall metallicity), as well as individual abundances for Mg, Al, Si, Ca, Ti, Fe, and Ni. Distances found using isochrones, temperatures from the infrared-flux method, and a catalogue of red giant stars for which the gravities were calibrated based only on seismology, are also products of RAVE DR5.

The data release can be accessed via the RAVE webpage at rave-survey.org.