Important NIR brightening of the Quasar OJ49
ATel #17639; L. Carrasco, L. Felix , G. Escobedo, A. Porras, E. Recillas; (INAOE, Mexico)
on 30 Jan 2026; 19:17 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Quasar, Transient
We report on a significant NIR brightening of the low redshift (z=0.1738) Quasar OJ49 cross identified with the radio source PKS0829+046 and the gamma-ray source 2FGLJ0828+0429. On January 21st,2026 (JD2461062.0087) we found the source with enhanced NIR fluxes, corresponding to J = 13.06 +/- 0.03, H = 12.21 +/- 0.04 and Ks = 11.58 +/- 0.04, while on JD2461020.9522, the NIR fluxes corresponded to J = 14.53 +/- 0.04, H = 13.35 +/- 0.04 and Ks = 12.68 +/- 0.03. Hence, the source has increased its flux in the J band by a factor of 4 a lapse of 41 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 encourage further multi wavelength coverage.
