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soft gamma repeater

(SGR)
(object that produces repeated gamma ray bursts)

A soft gamma repeater (SGR) is an astronomical object that repeatedly but irregularly produces gamma-ray bursts, specifically, soft gamma rays and/or hard X-rays. They are presumed to be a type of magnetar.


(object type,neutron stars,magnetism)
http://en.wikipedia.org/wiki/Soft_gamma_repeater
PrefixExampleSurvey/Catalog 
SGRSGR 0418+5729soft gamma repeatergeneral for "SGRs"

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