TITLE: GCN CIRCULAR NUMBER: 41146 SUBJECT: SVOM J195836+32283 is not a real source DATE: 25/07/24 15:39:42 GMT FROM: Diego Gotz at CEA <diego.gotz@cea.fr> D. Götz (CEA Saclay), P. Maggi (ObAS) on behalf of the SVOM/MXT Team report: A careful re-analysis of the entire MXT data set of the field of SVOM J195836+32283, including a SVOM follow-up ToO observation, started on July 22nd 2025 at 11:26:07 U.T. for a net exposure of 7 ks, indicates that the new transient source SVOM J195836+32283, announced in GCN Circular 41131, is in reality an artifact due to single reflection photons induced by the bright X-ray source Cyg X-1, which lies at 2.7 degrees from the source position, outside the MXT field of view. View this GCN Circular online at https://gcn.nasa.gov/circulars/41146. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...