A New Large NIR Flare of the Blazar [HB89] 0234+285
ATel #11261; L. Carrasco, E. Recillas, A. Porras, G. Escobedo, V. Chavushyan (INAOE, Mexico)
on 5 Feb 2018; 21:16 UT
Credential Certification: LUIS CARRASCO (firstname.lastname@example.org)
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 January 27th,2018 MJD(2458145.7470), we found the source with NIR fluxes corresponding to J = 14.169 +/- 0.02, H = 13.465 +/- 0.03 AND Ks= 12.380 +/- 0.07. While, 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 4, in this rather short lapse. The source has shown flaring activity in the past (see ATel #10034) 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.