Tuesday, January 1, 2013

1212.6868 (E. Bernieri et al.)

A new flaring high energy gamma-ray source    [PDF]

E. Bernieri, R. Campana, E. Massaro, A. Paggi, A. Tramacere
We report the detection of a new gamma-ray source in the Fermi-LAT sky using a source detection tool based on the Minimal Spanning Tree algorithm. The source, not reported in previous LAT catalogues but very recently observed in the X-rays and optical bands, is characterized by an increasing gamma-ray activity in 2012 June-September, reaching a weekly peak flux of (3.3+-0.6)*10^-7 photons cm^-2 s^-1. A search for a possible counterpart provides indication that it can be associated with the radio source NVSS J141828+354250 whose optical SDSS colours are typical of a blazar.
View original: http://arxiv.org/abs/1212.6868

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