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NIR brightening of the high redshift the blazar BZQJ0348-2749

ATel #11000; L. Carrasco, G. Escobedo, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)
on 23 Nov 2017; 20:03 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar, Transient

We report on the NIR brightening of the high redshift QSO BZQJ0348-2749 (z=0.991). On November 14th, 2017 MJD(24578071.8911), we found the source with NIR fluxes J =14.650 +/- 0.03, H = 13.940 +/- 0.02 and Ks = 12.843 +/- 0.08 While, on MJD 2456650.75 the flux in the H band corresponded to H = 15.530 +/- 0.05. Hence, the source has increased its flux by a factor of 4.3 in this lapse. The source is brightest since the time we started monitoring it (MJD 2455459.97), when the flux in the H band was H = 15.393 +/- 0.15 Our observations are 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.