TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1057 SUBJECT: SGR 1900+14: No evidence of extended X-ray emission DATE: 01/04/30 20:52:42 GMT FROM: Derek Fox at CIT D. W. Fox and D. L. Kaplan (Caltech) report: "Our earlier report of a pulse phase-variable PSF width in Chandra observations of SGR 1900+14 (GCN 1049) was in error. Appropriate treatment of the background counts relative to source counts reveals that the one-dimensional PSF is consistent with a Gaussian of fixed standard deviation equal to 0.41(1) arcseconds throughout the pulse phase. We therefore retract our claim of detection of extended X-ray emission in this data."