BL Lac at Brightest NIR Light
ATel #14050; L. Carrasco, G. Escobedo, A. Porras, E. Recillas, V. Chavushyan, Y. D. Mayya (INAOE, Mexico)
on 29 Sep 2020; 18:05 UT
Distributed as an Instant Email Notice Transients
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Black Hole, Quasar
We report on a recent NIR flare of BL Lac, associated with the Gamma ray source 2FGLJ2202.8+4216 (z = 0.0686). On September 6th,2020 (JD, 2459098.89) we obtained NIR photometry for this object and found it with enhanced fluxes, corresponding to: J = 10.356 +/- 0.02, H = 9.503 +/- 0.02 and Ks = 8.619 +/- 0.03. Our previous photometry for this object on JD2458881.6 yielded fainter fluxes by a factor of 2.2. The present flare has reached the brightest flux levels since we started monitoring this object on JD 2454358. 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.
