Speakers
Description
Hot massive stars dominate the stellar energy input to the interstellar medium, are laboratories for stellar evolution and multiplicity, and are tracers of recent star formation. One SDSS-V's core goals is to obtain multi-epoch BOSS spectra of over 300.000 OBA stars brighter than G=16 mag in the Galactic disc. From these spectra we will get estimates for masses, ages, metallicity, multiplicity, and velocities. In this talk I will describe SDSS-V targeting and observing strategy and show first spectra and resulting stellar parameters form the "zeta-Payne" code. In the longer run these data will serve as the basis for modelling the "young Galaxy", to search for dark companions, and to provide the connection to the LVM mapping of the gas that has been ionized by these stars.
