Further brightening of the Blazar BZQJ1849+6705
ATel #8389; L. Carrasco, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya, A. Carraminana (INAOE, Mexico)
on 9 Dec 2015; 05:25 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
We report on further brightening of the NIR flare of BZQJ1849+6705 (B31726+455) an intermediate redshift blazar (z=0.657) also known as CGRaBS J1849+6705, associated with the Gamma-ray source 2FGLJ 1849.4+6706, On December 7th, 2015 (MJD 2457363.5775) (Atel #8316) We determine NIR fluxes corresponding to
J = 13.962 =/- 0,03, H = 13.039 =/- 0.03 and Ks = 12.220 +/-0.05. While on November 6th, 2015 (JD 2457332.6402), We determined the flux from this object to correspond to J = 14.981 +/- 0.03, H = 14.144 +/- 0.05 and Ks = 13.335 +/- 0.05. That is, the object is, at present time about 2.8 mag brighter than the flux value measured by our team previously. On JD2457299.67, we had determined a flux corresponding to H = 15.827 +/- 0.03. Henceforth, this QSO has had a significant increase in flux, in the H band, by a factor of about 13 in this rather short lapse. This object is included in our NIR monitoring program of Gamma Ray bright AGNs and has shown flaring activity in the past (see ATEL#6623). 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.
