A NIR Flare of the Blazar ON246
ATel #12786; L. Carrasco, A. Porras, G. Escobedo, E. Recillas, V. Chavushyan (INAOE, Mexico)
on 20 May 2019; 23:38 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar, Transient
We report on a NIR flare of the low redshift quasar ON246 (z=0.135), also known as CGRaBSJ1230+2518, associated with the gamma-ray source 2FGL1230.2+2517. Our recent NIR photometry for this source shows that on May 8th,2015 (JD2458611.7906) the object brightness corresponded to J = 13.23 +/- 0.04 H = 12.43 +/- 0.03 and K = 11.695 +/- 0.04. These values are about 0.6 magnitudes brighter than our previous photometry, obtained on JD2458604.894, for this field. Hence, it has increased its flux by a factor of 4 in a lapse of 7 days. 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.
