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soft gamma repeater (SGR)




Probably a magnetar (a highly-magnetic neutron star) that emits bursts of soft (low-energy) gamma rays, each typically lasting less than a second, at irregular intervals. The bursts may be caused by starquakes on the surface crust of the neutron star. SGR bursts, discovered in 1979, are different from gamma-ray bursts, which are one-time events.


Related categories

   • TYPES OF STARS
   • STELLAR ASTROPHYSICS