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An interesting paper has recently been published claiming that thelong-sought Rosetta Stone needed to decipher the nature of pulsar radioemission has been finally identified as the double features in averaged pulsarprofiles. The authors argue that highly symmetric bifurcated features areproduced by a split-fan beams of extraordinary-mode curvature radiation emittedby thin microscopic streams of magnetospheric plasma conducted by a very narrowbundle of magnetic field lines. We examined arguments leading to theseintriguing conclusions and found a number of flaws. At least one of them isfatal, namely there is not enough available energy within such thin microscopicplasma streams. Using an elementary pulsar physics we show that if the streamis so thin that its emission can reveal the signatures of elementary radiationmechanism, then the energy deficit tends to be severe and reaches a few toseveral orders of magnitude (depending on the actual efficiency of convertingthe available kinetic energy of relativistic charged particles into thecoherent radio emission). We are certain that the answer to the questioncontained in the title of this paper is definitely negative.

Do double features in averaged pulsar profiles decipher the nature of their radio emission?