NIR brightening of the QSO HB891334-127
ATel #4838; L. Carrasco, G. Escobedo, E. Recillas, A. Carraminana (INAOE, Mexico),
on 24 Feb 2013; 20:00 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, X-ray, Request for Observations, AGN, Black Hole, Quasar
We report on the present NIR flare of the quasar HB891334-127 (z=0.539), cross identified with the X ray source 1WGA J1337.6-1257. On February 24th,2013, epoch JD2456347.92841, we determined the flux in the H band to be 13.691 +/- 0.08, about 1.6 magnitudes brighter than the flux determined by the 2mass survey for this object (H = 15.305 +/- 0.11), and about 1 magnitude brighter that the flux we previously determined on JD 2456074.7635 (H = 14.734 +/- 0.08). This object has presented flare activity at NIR wavelengths in the past (JD2455003.695), when the flux was also large (H = 13.599 +/- 0.03). Observations were 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 multi-wavelength coverage
