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NIR brightening of the QSO BZB J1959+6508

ATel #4617; L. Carrasco, E. Recillas, G. Escobedo, D. Y. Mayya, A. Porras, A. Carraminana (INAOE, Mexico)
on 2 Dec 2012; 08:05 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

Subjects: Radio, Infra-Red, Optical, Gamma Ray, Request for Observations, AGN, Quasar

We have observed a recent NIR brightening of the bright quasar, BZBJ1959+6508 also known as CGRaBSJ1959+6508 (z=0.047), cross identified with the X-ray source 1ES1959+650 and Gamma-ray source 1FGLJ2000.2+6508. From observations carried out on November 23th, 2012 (JD 2456254.75769), we determined the following photometric values H = 11.949 +/- 0.04, J = 12.587 +/- 0.04 and Ks = 11.397 +/- 0.06. These values correspond to the brightest state of this source since JD2454596.966106, when we started monitoring it at NIR wavelengths. 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 encourage further multi wavelength coverage.