|           Title: Maser astrometry with BeSSeL, status and progress     Speaker:  Yuanwei WU (PMO)     Time & Place: Thursday, 9:00am, May 15, 2014, 3rd floor   Abstract:  BeSSeL and VERA are two major projects on milky way strucure with VLBI maser astrometry.    I will give a report on status and recent progress BeSSeL survey, including spiral structure    kinematics of spirals, and galactic parameters. |