A rotary electric machine comprising: - a rotor including: - a pole core that comprises: - a first pole core body including: - a tubular first boss portion; - a first yoke portion that is disposed so as to extend radially outward from a first axial end edge portion of the first boss portion; and - a plurality of first claw-shaped magnetic pole portions that are each disposed so as to extend toward a second axial end from the first yoke portion and that are arranged at a uniform pitch in a circumferential direction; and - a second pole core body including: - a tubular second boss portion; - a second yoke portion that is disposed so as to extend radially outward from a second axial end edge portion of the second boss portion; and - a plurality of second claw-shaped magnetic pole portions that are each disposed so as to extend toward a first axial end from the second yoke portion and that are arranged at a uniform pitch in a circumferential direction, the first pole core body and second pole core body being integrated by being fixed to a shaft that is inserted into central axial positions of the first boss portion and the second boss portion such that the plurality of first claw-shaped magnetic pole portions and the plurality of second claw-shaped magnetic pole portions intermesh alternately, and such that a second axial end surface of the first boss portion and a first axial end surface of the second boss portion are butted together; and - a field coil that is housed inside a space that is surrounded by the first boss portion, the second boss portion, the first yoke portion, the second yoke portion, the plurality of first claw-shaped magnetic pole portions, and the plurality of second claw-shaped magnetic pole portions; and - a stator that is disposed so as to surround an outer circumference of the rotor so as to have a predetermined air gap interposed, wherein: the first pole core body and the second pole core body are produced using solid cores; and first slits are formed on outer circumferential surfaces of the boss portions so as to disrupt pathways of eddy currents that flow on the outer circumferential surfaces of the boss portions, characterized in that second slits (26, 27, 28) are formed on the second axial end surface of the first boss portion and the first axial end surface of the second boss portion so as to disrupt pathways of eddy currents that flow on the second axial end surface of the first boss portion and the first axial end surface of the second boss portion. - a rotor including: - a pole core that comprises: - a first pole core body including: - a tubular first boss portion; - a first yoke portion that is disposed so as to extend radially outward from a first axial end edge portion of the first boss portion; and - a plurality of first claw-shaped magnetic pole portions that are each disposed so as to extend toward a second axial end from the first yoke portion and that are arranged at a uniform pitch in a circumferential direction; and - a second pole core body including: - a tubular second boss portion; - a second yoke portion that is disposed so as to extend radially outward from a second axial end edge portion of the second boss portion; and - a plurality of second claw-shaped magnetic pole portions that are each disposed so as to extend toward a first axial end from the second yoke portion and that are arranged at a uniform pitch in a circumferential direction, the first pole core body and second pole core body being integrated by being fixed to a shaft that is inserted into central axial positions of the first boss portion and the second boss portion such that the plurality of first claw-shaped magnetic pole portions and the plurality of second claw-shaped magnetic pole portions intermesh alternately, and such that a second axial end surface of the first boss portion and a first axial end surface of the second boss portion are butted together; and - a field coil that is housed inside a space that is surrounded by the first boss portion, the second boss portion, the first yoke portion, the second yoke portion, the plurality of first claw-shaped magnetic pole portions, and the plurality of second claw-shaped magnetic pole portions; and - a stator that is disposed so as to surround an outer circumference of the rotor so as to have a predetermined air gap interposed, the first pole core body and the second pole core body are produced using solid cores; and first slits are formed on outer circumferential surfaces of the boss portions so as to disrupt pathways of eddy currents that flow on the outer circumferential surfaces of the boss portions, characterized in that second slits (26, 27, 28) are formed on the second axial end surface of the first boss portion and the first axial end surface of the second boss portion so as to disrupt pathways of eddy currents that flow on the second axial end surface of the first boss portion and the first axial end surface of the second boss portion.