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A Large NIR flare of the quasar BZQ J1734+3857

ATel #10673; L. Carrasco, J. Miramon, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya, G. Miramon (INAOE, Mexico)
on 28 Aug 2017; 04:08 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

We report on a NIR flare of the high redshift QSO (z=0.97) of the radio source B2 1732+38A cross identified with the quasar BZQJ1734+3857 and the Gamma-ray source 3FGLJ1734.3+3858 On July 7th,2017 MJD(2457941.9059), we found the source with NIR fluxes corresponding to J = 14.409 +/- 0.04, H = 13.628 +/- 0.05 and Ks = 12.943 +/- 0.05. While, on MJD 2457688.6351 the flux in the H band corresponded to H = 15.633 +/- 0.03. Hence, the source has increased its flux by a factor of 6.3 in this short lapse. The source is brightest since the time we started monitoring it on MJD 2455333.9. 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.