A New NIR Flare of the FSRQ S4 1726+45

ATel #14162; L. Carrasco, G. Escobedo, A. Porras, E. Recillas, D. Y. Mayya, (INAOE, Mexico)
on 9 Nov 2020; 16:44 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)

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We report on a new, recent NIR flare of BZQ J1727+4530 (B31726+455) an intermediate redshift quasar (z=0.717) also known as CGRaBS J1727+4530 and FSRQ S4 1726+45, associated with the Gamma-ray source 2FGLJ 1727.1+4531. The source has shown increased Gamma Ray activity as reported by Fermi Lat (see Atel # 14144). On November 4th, 2020 (JD 2459152.605) We determined the flux from this object to correspond to J = 13.663 +/- 0.03, H = 12.801 +/- 0.04 and Ks = 12.011 +/- 0.05. That is about 2 mag brighter than the flux value measured by our team previously. For JD2458256, when determined a flux corresponding to H = 14.885 +/- 0.04. Henceforth, this QSO has had a significant increase in flux by a factor of about 8 in this lapse. Also on September 29th,2020 we observed this object while rising, on JD2459120.6985 the H flux corresponded was H = 14.885 +/- 0.05. The object has shown flaring activity in the past (ATEL #3302, #6614, #7807). The object is now brightest since the time we started monitoring it on JD2455322, Our observations were carried out with the 2.1m telescope of the Guillermo Haro Observatory of the National Institute for Astrophysics, Optics and Electronics (Mexico), equipped with the instrument CANICA a NIR camera. We encourage further multi wavelength coverage of this object. Related 7807 A New NIR Flare of the QSO BZQJ1727+4530 6614 A recent NIR Flare of the QSO BZQJ1727+4530 3302 A NIR Brightening of the QSO BZQJ1727+4530 Related 8385 Another Recent NIR Flare of the QSO BZQJ1727+4530 7807 A New NIR Flare of the QSO BZQJ1727+4530 6614 A recent NIR Flare of the QSO BZQJ1727+4530 3302 A NIR Brightening of the QSO BZQJ1727+4530