MUCH ADO ABOUT NOTHING - SEVERAL LARGE-AREA SURVEYS FOR RADIO PULSARS FROM ARECIBO

We report surveyed regions and flux limits for several large-area surveys at 430 MHz for radio pulsars using the 305 m reflector at Arecibo, Puerto Rico. The surveys used integration times between 8 and 67 s and covered a total area of similar to 515 square degrees. No previously undiscovered pulsars were detected in these regions, although all previously known pulsars were detected. The nondetection of new pulsars places constraints on the population of low-luminosity pulsars and must be taken into account in estimates of the local density of millisecond pulsars.