SGR 1900+14: Magnetar

Explanation: On August 27th an intense flash of X-rays and gamma-rays swept through our Solar System. Five spacecraft of the Third InterPlanetary gamma-ray burst Network , Ulysses , WIND , RXTE , NEAR , and BeppoSAX , recorded the high energy signal -- a signal so strong that it saturated detectors on WIND and RXTE and triggered the safety mode automatic shut-off of the NEAR gamma-ray instrument! As plotted here, the count rate for the Ulysses detector abruptly spiked to a high level and then slowly tailed off showing smaller peaks roughly every 5 seconds. The signal and location provided by these spacecraft observations leads researchers to identify the source as a dramatic flare-up from one of only four previously known “Soft Gamma Repeaters” . These exotic sources of gamma-rays are believed to be highly magnetized spinning neutron stars called Magnetars . Imaginatively cataloged as SGR 1900+14 , this magnetar is estimated to have been born in a supernova explosion about 1,500 years ago and to have a magnetic field 500,000,000,000,000 times stronger than Earth's .