NIR Flare of the quasar HB890133+476
ATel #4791; L. Carrasco, J. R. Valdes, E. Recillas, A. Porras, A. Carraminana (INAOE, Mexico)
on 6 Feb 2013; 11:20 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, Request for Observations, AGN, Blazar, Quasar
We report on the present NIR flare of the quasar hb890133+476 also known as CGRaBSJ0136+4751 (z=0.859), cross identified with the gamma ray source 1FGLJ0137.0+4751. On February 5th,2013, epoch JD2456328.616682, we determined the flux in the H band to be 12.586 +/- 0.06. That is 1.5 magnitudes brighter than the flux we determined on JD2456279.7850, when we found the object to be H = 14.095 +/- 0.04. Presently, the object is undergoing a NIR flare similar to the one previously observed for the epoch JD2454804.7. 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 strongly encourage further multi-wavelength coverage.
