NIR brightening of the Blazar HB89 2345-167
ATel #12185; L. Carrasco, G. Escobedo, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)
on 7 Nov 2018; 20:18 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, AGN, Blazar, Quasar
We report on the NIR brightening of the intermediate redshift QSO HB892345-167 (z=0.576). 0n October 27th,2018 MJD(24578418.7438), we found the source with NIR fluxes J = 14.029 +/- 0.02, H = 13.101 +/- 0.04 and Ks = 12.308 +/- 0.04, while on MJD 2458029.84 the flux in the H band corresponded to H = 14.078 +/- 0.02. Hence, the source has increased its flux by a factor of 2.5 in this lapse. The source is brightest since the time we started monitoring it (MJD 2455486), when the flux in the H band was H = 14.997 +/- 0.06 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 encourage further multiwavelength coverage.