Angles between the Magnetic Moment and the Rotation Axis in Radio Pulsars with Hard Emission

We have performed a comparative analysis of the angles β between the rotation axis and the
magnetic moment in three groups of radio pulsars: sources inwhich only radio emission is observed, pulsars
with detected X-ray emission, and radio-loud gamma-ray pulsars. For this purpose, we have calculated the
values of the angle β separately for objects from each group by two differentmethods. It has turned out that
in pulsars with hard emission themean values of this angle (28.2◦ and 28.8◦) are greater than those for quiet
radio pulsars (12.9◦). However, using the Kolmogorov–Smirnov test, we have shown that the revealed
difference is insignificant with a high probability. Consequently, the structures of the magnetospheres in the
three groups of pulsars considered do not differ greatly, while their difference is attributable to the magnetic
field strength on the light cylinder that switches on the hard nonthermal emission mechanism in pulsars
with detected X-ray and/or gamma-ray emission but is not enough for this in quiet radio pulsars in the
hard ranges.