Search for an extended X-ray counterpart of SGR 1900+14

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X-Ray Sources, X-Ray Bursts, Gamma-Ray Sources, Gamma-Ray Bursts, X-Ray

Scientific paper

While two of the three soft gamma repeaters have confirmed X-ray and radio counterparts, the case is still open for SGR 1900+14. Though a ROSAT all-sky-survey X-ray source had been proposed earlier as a possible candidate (1), follow-up observations at different wavelengths have raised doubts on its association with SGR 1900+14. Here we report on a comprehensive X-ray counterpart search of the full 5 degree BATSE error radius using the ROSAT all-sky-survey data. While the optical and radio identification of the point-like X-ray sources is still in progress, the search for extended X-ray sources has revealed only two supernova remnants: W49B and G 41.4-0.3. We speculate that the latter source may be related to SGR 1900+14.

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