NIR brightening of the QSO HB89 0422+004
ATel #6971; L. Carrasco, A. Porras, E. Recillas, J. Leon-Tavares, V. Chavushyan, A. Carraminana (INAOE, Mexico)
on 21 Jan 2015; 01:45 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, TeV, AGN, Blazar, Quasar
We have observed a recent NIR brightening of the intermediate redshift quasar HB89 0422+004 also known as BZB J0424+0036 (z=0.31) it is associated with the Gamma-ray source 2FGLJ04254.7+0034. On January 9th, 2015, epoch JD2457031.7966, we determined the flux in the H band to be 12.11 +/- 0.04. A value similar to that determined by the 2mass survey. The object is brightest since the epoch JD2455242 when we started monitoring it and found it at a flux level corresponding to H = 13.35 +/- 0.05. The object has double its flux in the last 100 days. 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 multi wavelength coverage.
