Important NIR brightening of the Blazar OK+630
ATel #12858; L. Carrasco, G. Escobedo, E. Recillas, A. Porras, V. Chavushyan (INAOE, Mexico)
on 10 Jun 2019; 19:40 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
We report on NIR photometry of the radio source OK+630, cross identified with the high redshift quasar BZQJ0921+6215 (z=1.446). We observed the source in the NIR, finding that on May 24th, 2019 (MJD 2458627.7130) its fluxes corresponded to J = 15.317 +/- 0.03, H = 14.435 +/- 0.03, and Ks = 13.514 +/- 0.05. This source has been increasing its NIR fluxes in a monotonic trend since MJD 2457144.7, when its flux in the H band was H = 16.52 +/- 0.04. Hence, the source has increased its flux by a factor of 6.8 in this lapse. 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.
