Dark Pulsar in CTA 1 supernova remnant

CTA 1 supernova remnant and dark pulsar

Previously, the nebula CTA 1 showed an expanding supernova remnant, a jet, and a point source expected to be a pulsar. But no radio pulses were detected. NASA’s Fermi Space Telescope has solved the mystery with some of its initial observations indicating that the point source is pulsing at gamma-ray energies. The strange source is the first of a class that might be dubbed “dark pulsars”, rotating neutron stars that appear to pulse only in high-energy radiations.

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