A NIR Brightening of the QSO BZQJ1727+4530
ATel #3302; L. Carrasco, A. Carraminana, A. Porras, E. Recillas, D. Y. Mayya. (INAOE, Mexico)
on 22 Apr 2011; 16:06 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Millimeter, Infra-Red, Optical, Gamma Ray, >GeV, AGN, Blazar, Quasar
We report on the ongoing NIR brightening of BZQ J1727+4530 (B31726+455) an intermediate redshift quasar (z=0.717) also known as CGRaBS J1727+4530 On April 15th, 2011 (JD 2455666.9474), we detected a rather strong NIR source coincident with the radio position. We determined the flux from this object to correspond to H = 14.224 +/- 0.05. That is 1.9 mag brighter than the flux value measured by our group previously. On JD2455333.9589, we determine a flux corresponding to H = 16.183 +/- 0.09. Henceforth, this QSO has had a significant smooth increase in flux by a factor of 6 in this lapse. This object is included in our NIR monitoring program of Gamma Ray bright AGNs. Our observations were carried out with the 2.1m telescope of the Guillermo Haro Observatory of the National Institute for Astrophysics, Optics and Electronics (Mexico), equipped with the instrument CANICA a NIR camera. We encourage further multi wavelength coverage of this object.
