NIR brightening of the BLAZAR BZBJ2012+4628
ATel #7754; L. Carrasco, E. Recillas, A. Porras, J. Leon-Tavares, V. Chavushyan, A. Carraminana (INAOE, Mexico)
on 3 Jul 2015; 00:15 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
We report on a NIR flare of the blazar BZB J2012+4628, associated with the gamma-ray source 1FGL2012.2+4629. Our most recent NIR photometry for this source shows that on June 29th,2015 (JD2457202.9616), the object brightness corresponded to J = 14.449 +/- 0.06, H = 13.355 +/- 0.05 and Ks = 12.467 +/- 0.06. The NIR fluxes in the JHK bands had a sudden increase since the previously observed fluxes were: J = 15.029 +/- 0.06, H = 14.141 +/- 0.05 and Ks = 13.322 +/- 0.07, on JD2457184.9876. Hence the object has increased its luminosity by a factor of about 2.7 in this rather short lapse. The object is brightest since the time we started monitoring it at NIR wavelengths on JD 2456464. 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.
