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NIR brightening of the QSO BZQJ2157+3127

ATel #6605; L. Carrasco, A. Porras, E. Recillas, D. Y. Mayya, V. Chavushyan, A. Carraminana, (INAOE, Mexico)
on 22 Oct 2014; 13:53 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

We report on a recent NIR flare of the high redshift (z=1.486) QSO BZQJ2157+3127 associated with the radio source B22155+31 and the Gamma ray source 1FGLJ2157.4+3129. On October 3rd,2014 (JD, 2456933.8020) we obtained NIR photometry for this object and found it with an increased flux, corresponding to H = 17.151 +/- 0.05. Our previous photometry for this object on JD2456547 yielded fainter fluxes by at least a factor of 3 ( H > 18.5). Our 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 strongly encourage further multiwavelength coverage.