On the Enhanced X-ray Emission from Sgr 1900 14 after the August 27 Giant Flare
نویسندگان
چکیده
We show that the giant flares of soft gamma-ray repeaters ( ergs) can push the inner regions of a fall44 E ∼ 10 back disk out to larger radii by radiation pressure, while matter remains bound to the system for plausible parameters. The subsequent relaxation of this pushed-back matter can account for the observed enhanced X-ray emission after the August 27 giant flare of SGR 1900 14. Based on the results of our models, we estimate that the ratio of the fluences of the enhanced X-ray emissions to that of the preceding bursts remains constant for a particular SGR with similar preburst inner-disk conditions, which is consistent with the four different burst observations of SGR 1900 14. Subject headings: accretion, accretion disks — pulsars: individual (SGR 1900 14) — stars: neutron — X-rays: bursts
منابع مشابه
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