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Further NIR Brightening of the high redshift Blazar 4C+38.41

ATel #10340; L. Carrasco, A. Porras, E. Recillas, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)
on 2 May 2017; 01:01 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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

We report on the recent NIR brightening of the high redshift Blazar 4C+38.41 (z=1.814), associated with the Gamma-ray source 2FGLJ1635.2+3810 and the optical source [HB89]1633+382 On April 24th,2017 (MJD 2457867.9050), we found the source with NIR fluxes corresponding to: J = 14.257, H = 13.519 +/- 0.05, Ks = 12.647 +/- 0.06. On MJD 2457578.8. we had determined the flux H = 15.732 +/- 0.03 for this object. Hence, the object has undergone an increase in flux of a factor of 8 in this period of time. 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.