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NIR photometry of the flaring Blazar B20748+33

ATel #9627; L. Carrasco, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)Firstname1 Lastname1 (Affil1), Firstname2 Lastname2 (Affil2)...
on 14 Oct 2016; 19:37 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

Following the report of the detection by Fermi LAT (Atel#9590) of the high redshift (z=1.936) Blazar B20748+33, also known as BZQJ0751+3313, correlated with the radio source GB6J0751+3313. We carried out NIR photometry of the object on October 11th,2016 (MJD 2457672.987). At this time the source had flux values corresponding to J = 15.027 +/- 0.05, H = 14.307 +/- 0.02 and Ks = 13.486. At the epoch of the 2Mass Survey the source was below the detection limit, hence, the object has increased at least 3 magnitudes in the H band since then. Our 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 of this interesting object.