New Giant NIR flare of the FSRQ HB891420+326
ATel #16021; L. Carrasco, G. Escobedo, A. Porras, E. Recillas, L. Felix; (INAOE, Mexico)
on 28 Apr 2023; 21:45 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, TeV, AGN, Blazar, Quasar
We report on a New Giant NIR flare of the intermediate redshift (z=0.682) Blazar [HB89]1420+326, We observed the source at NIR wavelengths on March 31th, 2023 (MJD 2460034.99), we found the source with NIR fluxes corresponding to J = 12.980 +/- 0.03, H = 12.149 +/- 0.03 and Ks = 11.428 +/- 0.06. While the NIR flux in the H band on MJD2459724.91 it was H = 16.299 +/- 0.05. Hence, the object has increased its luminosity in the H band by a factor of more than 45 in this lapse. The object has shown flaring activity in different wavelength bands in the past and recently. (See Atels #12379, #12866, #13382, #14822, #15986). 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 strongly encourage further multiwavelength coverage.
