The enigmatic pulsar J1023 radically changes in brightness every few seconds. Astronomers may finally have an explanation.
Astronomers have solved the decade-long mystery of how a bizarre cosmic object toggles rapidly between"high" and"low" energy states: by launching plasma cannonballs from its orbit.
A pulsar known as J1023 has been an enigma for the past decade. It forms part of a binary star system some 4,500 light-years away and orbits very closely to its companion star. When scientists first began observing J1023 in 2009, it behaved much like any other pulsar, flashing regularly and at a consistent electromagnetic frequency.
—Strange radio bursts that outshine entire galaxies may come from colliding neutron stars, new study suggests
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