Optical flaring of the radio- and gamma-ray source PMN J2250-2806
ATel #3787; G. Cologna, S. Kaufmann, J.-P. Lenain, S. Schwemmer, S. Wagner (LSW Heidelberg) and H.-J. Hagen (Sternwarte Hamburg) on behalf of the ATOM team
on 28 Nov 2011; 23:16 UT
Credential Certification: Stefan J. Wagner (swagner@lsw.uni-heidelberg.de)
Subjects: Radio, Optical, Gamma Ray, Request for Observations, AGN, Blazar
We report increased optical activity of the flat spectrum radio quasar
PMN J2250-2806 (without confirmed redshift). This source has been monitored
at optical wavelengths for the past 2 years with the ATOM telescope.
During this period, the source varied between 23 and 15.5mag (R band).
PMN J2250-2806 was monitored almost every night with ATOM for the last
3 months.
Since November 14, 2011, the source started a significant increase from m_R=
18.7 to m_R=15.6 on November 27, 2011. The source is about 7.5 magnitudes
brighter than the faintest levels recorded in the past 2 years.
Further multifrequency observations are encouraged.
