Search Publications

On the nature of the galactic gamma-ray sources.

Morfill, G. E.; Bignami, G.; Forman, M.

Available data constrain possible models of the gamma-ray point (or pointlike) sources found by COS B. Apart from the pulsars (Crab, Vela) and possibly the quasar 3C 273, which are "compact" objects, and which have been identified at other photon energies, there are some 20-odd other sources with no accepted or acceptable counterpart, as yet. This…

Search for discrete gamma-ray sources emitting at energies greater than 10(exp15) eV.

Samorski, M.; Stamm, W.

The data of the extensive air shower experiment at Kiel have been scanned systematically for possible discrete γ-ray sources in the energy range E > 10¹⁵ eV and in the declination band δ = 25° - 75°. Photon fluxes for celestial positions with the statistically most significant excesses of showers and 3 σ upper limit photon fluxes for…