First White Dwarf Pulsar Discovered
Astronomers have identified an elusive white dwarf pulsar — the first of its kind to be discovered in the universe — housed in an exotic binary star system 380 light years away from Earth. In a study, published in the journal Nature Astronomy, researchers identified the star AR Scorpii (AR Sco) as the first white dwarf version of a pulsar. The white dwarf pulsar has eluded astronomers for over half a century. AR Sco lies in the constellation Scorpius, 380 light years from Earth, a close neighbour in astronomical terms. The white dwarf in AR Sco is the size of Earth but 200,000 times more massive, and is in a 3.6 hour orbit with a cool star one-third the mass of the Sun, the study said.