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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.
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