An ongoing NIR Flare of the QSO TXS 2241+406
ATel #6837; L. Carrasco, E. Recillas, A. Porras, J. Leon-Tavares, V. Chavushyan, A. Carraminana, (INAOE, Mexico)
on 19 Dec 2014; 07:30 UT
Credential Certification: LUIS CARRASCO (carrasco@inaoep.mx)
Subjects: Radio, Infra-Red, Optical, Gamma Ray, AGN, Blazar, Quasar, Transient
We report on a recent NIR flare of the object TXS 2241+406 also known as BZB J2244+4057 (z=1.171), associated with the Gamma ray source 2FGLJ2244.1+4059. On December 15th,2014 (JD, 2457006.7075) we obtained NIR photometry for this object and found it with enhanced fluxes corresponding to: J = 13.327 +/- 0.06, H = 12.496 +/- 0.07 and Ks = 11.622 +/- 0.08. The object might have been at detection limit at the the time of the 2Mass survey, with a flux corresponding to H ~ 17.8. Hence It has increased its flux by about a factor of 130 since that epoch. The present flare shows an increment in flux of a factor of 13 since we first detected this object on JD 2456650 (Atel #5690) and a factor of 3.6 brighter than the previous flare on JD2456867.9579.(Atel #6402) Our 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 multiwavelength coverage.
