Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 11953

Subject
GRB 110420B: Swift-XRT afterglow candidate retraction
Date
2011-04-21T14:09:18Z (13 years ago)
From
Boris Sbarufatti at INAF-OAB/IASFPA <boris.sbarufatti@brera.inaf.it>
B. Sbarufatti (INAF-OAB/IASFPA) and V. Mangano (INAF/IASFPA) report on 
behalf of the Swift XRT team:

Further observations of the field of GRB 110420B (Sbarufatti  et al.
GCN Circ. 11944) have shown that the X-ray source reported by Sbarufatti 
et al. (GCN Circ. 11947) has not faded.  Moreover, the position is 
marginally consistent with the known X-ray source 1RXS J212024.5-411816. 
Therefore we conclude that the XRT source is not the burst afterglow.

This circular is an official product of the Swift-XRT team.
Looking for U.S. government information and services? Visit USA.gov