Neutrino Flux Upper Limit from the Pierre Auger

Neutrino astronomy is an interesting and developing tool for understanding the Universe. Both surface detectors and fluorescence detectors of the Pierre Auger Observatory are sensitive to neutrino induced extensive air showers. Such events may be distinguished from hadronic showers by searching for inclined showers originating close to the detector - these events would have significant electromagnetic component leading to a broad signals in surface detector stations in contrast to short pulses caused nucleonic showers. In the present data from the surface detectors no such shower has been observed so upper limits to the neutrino flux have been calculated and presented.