A New NIR Flare of the QSO PKS0458-02
ATel #6995; L. Carrasco, J. Miramon, A. Porras, E. Recillas, V. Chavushyan, A. Carraminana,
on 27 Jan 2015; 07:43 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar
We report on a NIR flare of the high redshift quasar PKS0458-02 (z=2.286), also known as CGRaBSJ0501-0159, associated with the gamma-ray source 2FGL0501.2-155. Our recent NIR photometry for this source shows that on January 24th,2015 (JD2457046.8311) the object brightness corresponded to J = 15.48 +/- 0.04, H = 14.649 +/- 0.06 and Ks = 13.329 +/- 0.07. The value in the K band is 1,1 magnitudes brighter than our previous photometry, obtained on JD2457035.79 for this field. Hence it has increased its flux by a factor of 2.8 in a lapse of 11 days. The object is brightest since we started monitoring it on JD 2455550. The object has shown flaring activity in different wavelength bands in the past. (see Atels #2993,#4396,#4402,#5951). 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.