HD 199143 and HD 358623: Two recently identified members of the beta Pictoris Moving Group

HD 199143 and HD 358623 (BD-17degrees6128) are two sets of binary stars which are physically associated and 48 pc from Earth. We present heliocentric radial velocities and high lithium abundances which establish these stars as members of the similar to12 Myr-old beta Pictoris Moving Group. We also present mid-IR photometric measurements which show no firm evidence for warm dust around all four stars.