Another NIR flare of the Gamma ray source PKS1550-242
ATel #3332; L. Carrasco, A. Carraminana, A. Porras, E. Recillas, G. Escobedo (INAOE)
on 9 May 2011; 05:52 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, VHE, Request for Observations, AGN, Blazar, Quasar
We call attention on our recent observation of the Gamma Ray source 1FGLJ1553.4-2425 also known as PKS1550-242 with the CANICA NIR camera on the 2.1m telescope at the Observatorio Astrofisico Guillermo Haro, located in Cananea, Mexico. On April 26th, 2011 (JD24555677.877), we found this blazar to be in outburst. It showed fluxes about 4.2 magnitudes brighter than our previous NIR photometry. On this date the source was found to have a flux corresponding to H = 14.527 +/- 0.05. This flux is a factor of 48 times larger than the flux observed on JD24555637.992 H = 18.85 +/- 0.35 with the same instrument, it a very significant increase in luminosity in a rather short period of time. During 2010 this source was also flaring, we reported its previous activity in ATEL#2726. We encourage further multiwavelength observations.
