NIR brightening of the Blazar PKS1550-242
ATel #4966; L. Carrasco, A. Porras, G. Escobedo, E. Recillas, A. Carraminana (INAOE)
on 10 Apr 2013; 19:25 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar
Referred to by ATel #: 6238
We call attention on our recent NIR observations of the Gamma Ray source 1FGLJ1553.4-2425, (cross correlated in position with the radio source PKS1550-242) with the CANICA NIR camera on the 2.1m telescope at the Observatorio Astrofisico Guillermo Haro, located in Cananea, Mexico. On April 5th, 2013 (JD2456387.0006), we found this blazar to be in a new outburst. It showed fluxes about 0.7 magnitudes brighter than our previous NIR photometry. On this date, the source was found to have a flux corresponding to H = 14.289 +/- 0.07, a factor of 67 times larger than the flux observed on JD24555637.992 H = 18.85 +/- 0.35 with the same instrument. The object has been detected while flaring, in 2010 and 2011. we reported its previous activity in Atel#2726 and Atel#3332 We encourage further multiwavelength observations.
