NIR brightening of the Quasar HB89 1749+0937
ATel #8182; L. Carrasco, J. Miramon, A. Porras, E. Recillas, V. Chavushyan, A. Carraminana (INAOE, Mexico)
on 17 Oct 2015; 23:23 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, X-ray, Gamma Ray, AGN, Blazar, Quasar
We report on the recent NIR brightening of the intermediate redshift Blazar HB891749+096 (z=0.322),
associated with the Gamma-ray source 2FGLJ1751.5+0937 and the radio source OT+081. On September 24th,2015 (MJD 2457289.7072), we found the source with NIR fluxes corresponding to: J = 13.625 +/-
0.07, H = 12.803 +/- 0.05 and Ks = 11.969 +/- 0.04. On MJD 2456840. we had determined the fluxes to be J = 15.148, H = 14.269 and Ks = 13.253. Ever since, we have detected a slow but monotonic increase in flux for the NIR part of the spectrum. 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.
