A search for the optical counterpart of PSR B1951+32 in the supernova remnant CTB 80 ?

Using time-resolved two-dimensional aperture pho- tometry we have put upper limits on the pulsed emission from two proposed optical counterparts for PSR B1951+32. Our pulsed upper limits of mv;pulsed > 23:3, mb;pulsed > 24:4, for the first candidate and mv;pulsed > 23:6, mb;pulsed > 24:3 for the second, make it unlikely that either of these is, in fact, the pulsar. We discuss three further candidates, but also reject these on the basis of timing results. A search of a 5: 5 5: 00 5 area centred close to these stars failed to find any significant pulsations at the reported pulsar period.