Stars of HETDEX. I. RVels & metal-poor stars

In its search for these galaxies, HETDEX will also observe a few times 105 stars. In this paper, we present the first stellar value-added catalog within the internal second data release of the HETDEX Survey (HDR2).

The new catalog contains 120,571 low-resolution spectra for 98,736 unique stars between 10<G<22 spread across the HETDEX footprint at relatively high (b~60{deg}) Galactic latitudes. With these spectra, we measure radial velocities (RVs) for ~42,000 unique FGK-type stars in the catalog and show that the HETDEX spectra are sufficient to constrain these RVs with a 1{sigma} precision of 28.0km/s and bias of 3.5km/s with respect to the Large Sky Area Multi-Object Fibre Spectroscopic Telescope surveys and 1{sigma} precision of 27.5km/s and bias of 14.0km/s compared to the Sloan Extension for Galactic Understanding and Exploration survey.