Large NIR Flare of the blazar HB891420+326
ATel #12379; L. Carrasco, G. Escobedo, E. Recillas, A. Porras, V. Chavushyan (INAOE, Mexico)
on 11 Jan 2019; 15:16 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
Following the report of Gamma-ray flaring activity detected by Fermi LAT, of the intermediate redshift (z=0.682) Blazar [HB89]1420+326 by S. Ciprini (ATel #12277), We observed the source at NIR wavelengths on January 5th,2019 (MJD 2458488.0226), we found the source with NIR fluxes corresponding to J = 15.389 +/- 0.06, H = 14.270 +/- 0.06 and Ks= 13.489 +/- 0.04. The source was not detected in the 2mass Sky Survey at a flux limit H ~ 17.5 Hence, the source has increased its flux by a factor of at least 20. in this lapse. We have added this source to out NIR monitoring program of AGNs. 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.
