A New NIR flare of the blazar FSRQ S40954+65
ATel #17062; L. Carrasco, G. Escobedo, A. Porras, E. Recillas, L. Felix (INAOE, Mexico)
on 4 Mar 2025; 17:28 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, TeV, AGN, Blazar, Quasar
We report on the recent NIR brightening of Flat Spectrum Radio Quasar FSRQ S40954+65 (z=0.367), also known as CGRaBS J0958+6533. On February 22th, 2025 (JD 2460728.8629), we found the blazar FSRQ S40954+65 brighter than our previous observation of February 5th, 2025 reported on ATel #17044. The NIR fluxes in the JHK bands were: J=12.178+/-0.04, H=11.359+/-0.04 and Ks=10.446+/-0.04. Hence, the object has increased its luminosity in the JHK band by a factor of 1.6 on the lapse of the last thirteen days. And a factors of almost 5.3, 6.0, 4.6 in JHK bands respectively on the last 73 days. Recently, the object has shown renewed gamma-ray activity, ATel#17042. Our observations are carried out with CANICA a NIR camera on the 2.1m telescope at the Observatorio AstrofÃsico Guillermo Haro, which is operated by the National Institute for Astrophysics, Optics and Electronics (INAOE, Mexico). We encourage further multiwavelength observations.
