NIR Brightening of the Blazar candidate MASTER OTJ203431.37+641048.8
ATel #9722; L. Carrasco, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)
on 7 Nov 2016; 03:19 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, AGN, Blazar, Star
Following the report on flaring activity of MASTER OTJ203431.37+601048.8 by Denisenko et al.,2014 (Atel #6470). We incorporated this source on our NIR monitoring program of AGNs. Recently, On October 26th,2016 (JD2457687.774), we found this object with fluxes corresponding to J = 12.842 +/- 0.03, H = 11.564 +/- 0.03 and Ks = 10.751 +/- 0.05. That is fluxes up to 1.5 mag brighter than our photometry for MJD 2457365, when the observed flux corresponded to H = 13.044 +/- 0.04 confirming the variable nature of this object at NIR wavelengths. Activity in this object has been reported previously in Atel # 6642, 6645. Our photometric colors are consistent with the object being an AGN. 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.
