NIR photometry of the flaring Quasar PKS050-225
ATel #4613; L. Carrasco, E. Recillas, G. Escobedo, D. Y. Mayya. A. Carraminana, (INAOE, Mexico)
on 30 Nov 2012; 04:11 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Infra-Red, Optical, Gamma Ray, Request for Observations, AGN, Blazar, Quasar
Following the report of a Gamma Ray flare in this object by M. Dutka et al. (Atel # 4574),
we observed a recent NIR brightening of the high redshift, PKS0250-225 also known as CGRaBSJ0252-2219 z=1.419), cross identified with the gamma ray source 2FGLJ0252.7-2218. On November 24th 2012 (JD 2456255.7662), we determined the following photometric values H = 15.592+/- 0.05, J = 16.570 +/- 0.04 and Ks = 14.653 +/- 0.06. While for the November 27th 2012 JD2456259.8265 we derive H = 15.914 +/- 0.05, J = 16.539 +/- 0.04 and Ks = 14.894 +/- 0.05. Thus showing already a decline of the flare luminosity.
This object has been reported as a multi-wavelength flaring (Atel #4584, Atel #4601). 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.
