Another Fast NIR Flare of the Blazar BZQJ0237+2848
ATel #15031; L. Carrasco, E. Recillas, G. Escobedo, A. Porras, D. Mayya, V. Chavushyan (INAOE, Mexico)
on 12 Nov 2021; 23:02 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Infra-Red, Optical, Gamma Ray, AGN, Blazar, Transient
We report on a new NIR flare of the high redshift blazar (z=1.213) [hb89]0234+285 also known as BZQJ0237+2848, cross-correlated with the radio source 4C+28.07 and the Gamma-ray source 3FGLJ0237.9+2848. On October 14th,2021 JD(2459502.959), we found the source with NIR fluxes corresponding to J = 13.729 +/- 0.06, H = 12.849 +/- 0.06 and Ks= 12.011 +/- 0.05. While on JD 2458778.91 the flux in the H band corresponded to H = 16.117 +/- 0.04. Hence, the source has increased its flux by a factor of 20, in this lapse. The source has shown flaring activity in the past (see ATel #10034, #11261, #12111, #12321,#12401,#12494) 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.
