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A recent NIR Flare of the QSO TXS 2241+406

ATel #8030; L. Carrasco, A. Porras, E. Recillas, D. Y. Mayya, V. Chavushyan, A. Carraminana, (INAOE, Mexico)
on 9 Sep 2015; 17:55 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

We report on the recent NIR brightening of the high redshift quasar TXS 2241+406 also known as BZB J2244+4057,(z=1.171), cross identified with the gamma-ray source 2FGL J2244.1+4059. On September 6th,2015 (MJD 2457271.7712, we found the source with the following fluxes in NIR bands: J = 13.889 +/- 0.05, H = 13.089 +/- 0.05 and Ks = 12.322 +/- 0.07. These are to be compared with our previous observation on MJD 2457021, when the source had, J = 14.824, H = 13.911 and Ks = 13.005. Hence, this source has had an increment of about 0.9 mag in this lapse. The source is brightest since the time we started monitoring it in these bands on JD 2456650. It also has shown flaring activity in the past (ATEL #6402 and #6780). 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.