A New NIR Flare of the FSRQ OP313
ATel #17179; L. Carrasco, G. Escobedo, A. Porras, E. Recillas, L. Felix;(INAOE, Mexico)
on 9 May 2025; 21:37 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 OP313, also cross identified with 4FGL J1310.5+3221. On May 8th , 2025 (JD 2460803.8398) we found the object undergoing a new outburst. At this time, its NIR fluxes in the JHK bands corresponded to J=11.876+/-0.03, H=11.189+/-0.03 and Ks=10.355+/-0.03. While, one month earlier, on JD 2460773.9679, the NIR fluxes in JHK bands were J=13.405+/-0.055, H=12.695+/-0.055 and Ks=11.825+/-0.055. Hence, the object has increased its luminosity in the JHK band by a factor of almost 4 in this lapse. Recently, the object has shown renewed gamma-ray, optical and NIR activity (see: ATel#17167, ATel#17173 and ATel#16991). Our observations are carried out with CANICA a NIR camera on the 2.1m telescope at the Observatorio Astrofisico Guillermo Haro, which is operated by the National Institute for Astrophysics, Optics and Electronics (INAOE, Mexico). We encourage further multiwavelength observations.
