A search for fast radio bursts associated with gamma-ray bursts using the YNAO 40-m radio telescope

We report on the search results of Fast Radio Bursts (FRBs) from three Gamma- ray (GRBs) at 2256 MHz using 40-m radio telescope located YunNan Astronomical Observatory (YNAO). The for signals was triggered by Burst Alert Telescope (BAT) on- board Swift satellite. single pulses are searched in data over a large range dispersion measure 0 to 5000 pc/cm3 step 50 pc/cm3. No FRB-like emission prompt phase GRBs detected with significance > 5?. If there FRBs related GRBs, we set an upper limit ux density 2.5 Jy GRB140512A and 8.0 140629A 140703A sensitivity telescope. A statistical analysis GRB reveals that events above 5? consistent thermal noise uctuations.