  The telescopes on the Compton Gamma Ray Observatory (CGRO) have observed PSR
B1055-52 a number of times between 1991 and 1998. From these data, a more
detailed picture of the gamma radiation from this source has been developed,
showing several characteristics which distinguish this pulsar: the light curve
is complex; there is no detectable unpulsed emission; the energy spectrum is
flat, with no evidence of a sharp high-energy cutoff up to >4 GeV. Comparisons
of the gamma-ray data with observations at longer wavelengths show that no two
of the known gamma-ray pulsars have quite the same characteristics; this
diversity make s interpretation in terms of theoretical models difficult.
