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Pulsars throw out brief flashes of radio waves lasting milliseconds.
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Pulsars throw out brief flashes of radio waves lasting milliseconds. However, astronomers have discovered a new class of objects that can send pulses lasting seconds to minutes. Researchers have cracked the mystery; they're actually two stars: a white dwarf in a binary system with a red dwarf. The cause still hasn't been found, but it could be that the radio pulses are coming from the magnetic field of the white dwarf as it interacts with the red dwarf.
Two-star system explains unusual astrophysical phenomenon
An international team of astrophysicists led by the Netherlands and the UK have discovered that radio pulses lasting seconds to minutes are due to two stars coming together – rather than emissions from a single star.
University of Oxford Department of Physics (www.physics.ox.ac.uk)
