NIR Flare of the Blazar HB891800+44
ATel #9712; L. Carrasco, J. Miramon, E. Recillas, A. Porras, V. Chavushyan, D. Y. Mayya (INAOE, Mexico)
on 4 Nov 2016; 19:37 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
We have observed a recent NIR flare of the intermediate redshift Blazar HB891800+440 (z=0.663) cross identified with the Gamma ray source 2FGLJ1801.7+4405 and the radio source FSRQ S41800+44. On October 26th, 2016 (MJD 2457687.65), we determined the flux in the H band to be 13.569 +/- 0.04. That is 0.9 magnitudes brighter than the flux determined for this object by our team on JD 2457653.76 when the source flux corresponded to H = 14.455 +/- 0.03. That is an important flux increment in a rather short lapse. Observations were 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.
