摘要:We invite proposals for the open use observations of the KaVA. It will provide opportunities of VLBIobservations at 22 and 43 GHa for astronomers in the world.The very long baseline interferornetry (VLBI) technique offers angular resolutions superior to any other irsstruments at other wavelengths,enabling unique science applications of high-resolution imaging of radio sources and high-precision astrometry.The East Asia VLBI Network(EAVN) is a collabarative effort in the fast Asian region.
摘要:IVS International VLBI Service for Geodesy&Astrometry IVS是一个国际合作组织,专门组织和协调VLBI观测、数据处理和分析.SHAO VLBI数据分析中心承担CVN数据分析,积极承担国际网的数据分析。IVS目前有12个正在运行的数据分析中心,上海天文台是IVS积极活跃的数据分析中心之一。
摘要:AR Sco,the first radio‐pulsing white dwarf,is an interesting source.Our resulate also show that AR Sco's radio emission compact on milliarcsecondangular scales.With an optimistic attitude,we believe that a better value will be obtainedwhen CC001C data's analysis finished. And the final value will be used to revisitethe related models about AR Sco.