A search for X-rays from five pulsars: PSR's 0740-28, 1737-30, 1822-09, 1915+13 and 1916+14

We report observations of PSR's 0740-28, 1737-30, 1822-09, 1915+13 and 1916+14 with ROSAT. In the 0.1-2.1 keV range upper limits to luminosity are derived for power law and blackbody spectra, using a range of $N_{H}$ estimates. The upper limit to the blackbody luminosity from PSR1822-09 turns out to be consistent with standard cooling curves. For the other pulsars the upper limits are not restrictive as they are much larger than the luminosities predicted by the models.