NIR Brightening of the Blazar CTA102
ATel #4442; L. Carrasco, A. Luna, A. Porras, D. Y. Mayya. (INAOE, Mexico)
on 1 Oct 2012; 18:47 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, VHE, AGN, Blazar, Quasar
We have observed the recent NIR brightening of the radio source (4C+11.69) HB892230+114 a high redshift quasar (z=1.037). On September 26th, 2012, epoch JD2456196.8412, we determined the flux in the H band to be 12.277 +/- 0.09. This flux level is historically the brightest since we have started monitoring the source on JD2454623.9470, when the H band flux corresponded to H = 15.09 +/- 0.06. Our previous observation on JD2456093.958785 yielded H = 14.019 +/- 0.08. Hence, the NIR flux of this object is rising rather fast. The recent flaring of the object has been reported also on Atel# 4437 and Atel #4397 for other wavelengths. The observations were carried out with the 2.1m telescope of the Guillermo Haro Observatory operated by the National Institute for Astrophysics, Optics and Electronics (Mexico), equipped with the instrument CANICA a NIR camera. We encourage further multi wavelength coverage.
