  We discuss some aspects of de Araujo, Coelho & Costa (2016, 2017) concerning
the role of a time dependent magnetic ellipticity on the pulsars' braking
indices and on the putative gravitational waves (GWs) these objects can emit.
Since only nine of more than 2000 known pulsars have accurately measured
braking indices, it is of interest to extend this study to all known pulsars,
in particular as regards GW generation. In summary, our results show a
pessimistic prospect for the detection of GWs generated by these pulsars, even
for advanced detectors such as aLIGO and AdVirgo, and the planned Einstein
Telescope, would not be able to detect these pulsar, if the ellipticity has
magnetic origin.
