SIMBAD references

Pulsed radio emission at 87GHz has been detected from the pulsar PSR B0355+54. The observed flux density of 0.5±0.2mJy is, within the measurement errors, the same as measured previously at 43GHz and is thus higher than expected. However the errors are such that all the measurements at frequencies higher than 1.2GHz are just consistent with a single power law spectrum. A second pulsar, PSR B2021+51, with a reported excess of flux density at 43GHz, has been observed but not detected. The resulting upper limit for the flux density provides little constraint on the form of its spectrum above 43GHz.