A new Giant NIR Flare of the FSRQ S40954+65
ATel #7750; L. Carrasco, A. Porras, E. Recillas, J. Leon-Tavares, V. Chavushyan, A. Carraminana (INAOE, Mexico)
on 2 Jul 2015; 15:38 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Gamma Ray, VHE, AGN, Blazar, Quasar
Referred to by ATel #: 8445
We report on a new giant NIR flare of the intermediate redshift FSRQ S4 0954+658(z=0.368), also known as CGRaBSJ0958+6533 associated with the gamma-ray source 2FGL0958.6+6533. Our most recent NIR photometry for this source shows that on June 11th,2015 (JD2457184.6502), the object brightness corresponded to J = 13.300+/- 0.04, H = 12.542 +/- 0.04 and Ks = 11.657 +/- 0.04. The NIR fluxes in the JHK bands had a sudden increase since the previously observed fluxes were: J = 14.468 +/- 0.07, H = 13.509 +/- 0.04 and Ks = 12.699 +/- 0.06, on JD2457180.6762. Hence the object has increased its luminosity by a factor of about 2.5 in this very short lapse. The object has shown flaring activity in different wavelength bands in the past. (see Atels #3220, #6709, #6996, #7001, #7007, #7046). 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 strongly encourage further multiwavelength coverage.