SIMBAD references

We have observed the Wolf-Rayet stars WR46 (WN3p+c) and WR50 (WC7+abs) at 3 and 6 cm using the Australia Telescope in search of non-thermal radio emission. However, the sources were not detected and we derive upper limits to their radio fluxes of 0.18mJy (0.15mJy in the case of WR46 at 6cm). These are not in conflict with expected thermal emission, because the wind densities have been found to be lower than an average WR wind. Inversely, assuming the mass-loss rate as determined from optical spectral analyses, the inferred lower limits to the distances are in agreement with previous determinations. Both objects are reported as short-period photometric variables, but we note that the variability of WR50 is suspicious.