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A New Giant NIR flare of the Blazar OJ287

ATel #8705; L. Carrasco, E. Recillas, J. Miramon, A. Porras, V. Chavushyan, A. Carraminana (INAOE, Mexico)
on 18 Feb 2016; 07:51 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

Referred to by ATel #: 8768, 8777, 8778, 8806

We report on a new NIR flare of the bright Blazar OJ287 (z=0.3056), also known as PKS0851+202 associated with the gamma-ray source 2FGLJ0854.8+2005 Our most recent NIR photometry for this source shows that on February 15th,2016 (MJD 2457433.9182), the object brightness corresponded to H = 11.258 +/- 0.05, J = 12.027 +/- 0.03 and Ks = 10.504 +/- 0.05. In our previous observation in these bands (MJD2457418.8763), this object had H = 12.667 +/- 0.03, J = 13.599 +/- 0.03 and Ks = 11.922 +/- 0.03. Hence, the object has increased its luminosity by a factor of about 4 in this rather short lapse. Recent enhanced activity of this object has been reported by Zola et al.2016 (Atel#8667) 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 strongly encourage further multiwavelength coverage.