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ATEL # 2390; H. A. Krimm (CRESST/GSFC/USRA)
on 20 Jan 2010; 17:59 UT
Password Certification: Hans A. Krimm (Hans.Krimm@nasa.gov)
Subjects: X-ray, AGN, Transients
I report that a recent announcement of hard X-ray flaring activity from the broad-line radio galaxy 3C 111 (Krimm et al, ATel #2374) was based on erroneous analysis and I therefore retract the announcement. 3C 111 was not in a flaring state in hard X rays. Due to an error in the input source catalog of the Swift/BAT hard X-ray transient monitor, count rates for 3C 111 were confused with those of the black hole transient 4U 1630-47, which is currently in outburst (e.g. Tomida et al, ATel #2363).
I regret any confusion and misused observing time resulting from the earlier announcement.