AR Sco: the First White Dwarf Pulsar

This talk will discuss the recent discovery of a spinning white dwarf in the binary system AR Scorpii which shows all of the usual hallmarks of a pulsar. Initial observations established that it pulses at the ~2 minute spin and beat periods, and their harmonics, from the UV to radio wavelengths. This is therefore the first radio pulsing white dwarf and the luminosity of the system is dominated by synchrotron emission, powered by the spin-down of the strongly magnetic (~200 MG) white dwarf.