Cygnus X-1 15-GHz radio flux increasing
ATel #3803; Guy Pooley (Astrophysics, Cavendish Laboratory, Cambridge UK)
on 11 Dec 2011; 11:07 UT
Credential Certification: Guy Pooley (ggp1@cam.ac.uk)
Subjects: Radio, X-ray, Gamma Ray, Binary, Black Hole
The flux density of Cygnus X-1 at 15 GHz has returned to a level typical of the hard X-ray state, consistent with the report (Atel #3802) that the FERMI/GBM has detected an increase in hard X-ray flux from November 25 (MJD 55890). Some activity was detected in the cm band on MJD 55886, with 10 mJy on MJD 55897 and 16 mJy on MJD 55905 (the typical flux density in the soft X-ray state is < 1 mJy).
Regular monitoring with the AMI large array continues.
