NIR Brightening of the Quasar PKS2255-282
ATel #4455; L. Carrasco, A. Luna, D. Y. Mayya, A. Carraminana, A. Porras, E. Recillas, G. Escobedo (INAOE, Mexico)
on 5 Oct 2012; 15:20 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Millimeter, Infra-Red, X-ray, Gamma Ray, VHE, Request for Observations, AGN, Blazar, Quasar
We observed a recent NIR brightening of the Quasar PKS2255-282
a high redshift QSO (z=0.925840 ). On September 26th, 2012, epoch JD2456196.75991, we determined the flux in the H band to be 14.004 +/- 0.06. This flux level is comparable with the observed on JD2455121.7035, when the object was raising to a NIR flare. Yet, the object has not reached the flux level observed on JD 2455153.6285 when H = 13.593 was determined. 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.
