Further NIR brightening of the high redshift the blazar BZQJ0237+2848
ATel #12321; L. Carrasco, G. Escobedo, E. Recillas, A. Porras, V. Chavushyan (INAOE, Mexico)
on 21 Dec 2018; 19:01 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar, Transient
We report on a new NIR flare of the high redshift QSO (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 December 20th,2018 MJD(2458472.8246), we found the source with NIR fluxes corresponding to J = 13.776 +/- 0.03, H = 12.881 +/- 0.03 and Ks= 12.078 +/- 0.05. On MJD 2458067.65 the flux in the H band corresponded to H = 14.983 +/- 0.03. Hence, the source has increased its flux by a factor of 7, in this lapse. The source has shown flaring activity in the past (see ATel #10034, #11261, #12111) 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.
Related
12111 SAO RAS Observations of current brightening of [HB89] 0234+285 blazar
11261 A New Large NIR Flare of the Blazar [HB89] 0234+285
10034 A NIR Flare of the QSO [HB89] 0234+285