We report the results of a search for variable stars in the open cluster NGC 2141. Ten variable stars are detected, among which nine are new variable stars and
We report the internal proper motions of 12 GHz methanol masers in massive star-forming region G35.20-0.74 observed with the Very Long Baseline Array (VLBA) at
Here we briefly present some design approaches for a multifrequency 96-antenna radioheliograph. The configuration of the array antenna, transmission lines and d