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NIR photometry the AGN candidate MASTER OTJ203431.37+641048.8

ATel #6645; L. Carrasco, A. Porras, E. Recillas, J. Leon-Tavares, V. Chavushyan, A. Carraminana, (INAOE, Mexico)
on 30 Oct 2014; 00:03 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

Subjects: Infra-Red, Optical, AGN, Blazar

Following the report on flaring activity of MASTER OTJ203431.37+601048.8 by Denisenko et al.,2014 (Atel #6470). We carried out NIR photometry recently, On October 4th,2014 (JD2456934.7287), we found this object with fluxes corresponding to J = 13,739 +/- 0.02, H = 11.494 +/- 0,03 and Ks = 10.667 +/- 0.03. That is fluxes up to 1 mag brighter than the photometry published by the 2MASS Survey, confirming the variable nature of this object at NIR wavelengths. Our photometric colors are consistent with the object being an AGN. We plan to follow its behavior in the NIR in order to correlate those data with other time variable data. Our observations were carried out with the 2.telescope of the Guillermo Haro Observatory of the National Institute for Astrophysics, Optics and Electronics (Mexico), equipped with the instrument CANICA a NIR camera. We encourage further multi wavelength coverage of this object.