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Fermi-LAT gamma-ray signal from Earth Limb, systematic detector effects and their implications for the 130 GeV gamma-ray excess
Andi Hektor, Martti Raidal, Elmo Tempel
We look for possible spectral features and systematic effects in Fermi-LAT publicly available high-energy gamma-ray data by studying photons from the Galactic centre, nearby galaxy…
Double gamma-ray lines from unassociated Fermi-LAT sources revisited
Andi Hektor, Martti Raidal, Elmo Tempel
We search for the presence of double gamma-ray line from unassociated Fermi-LAT sources including detailed Monte Carlo simulations to study its global statistical significance. App…
An evidence for indirect detection of dark matter from galaxy clusters in Fermi-LAT data
Andi Hektor, Martti Raidal, Elmo Tempel
We search for spectral features in Fermi-LAT gamma-rays coming from regions corresponding to eighteen brightest nearby galaxy clusters determined by the magnitude of their signal l…
Implications of the Fermi-LAT diffuse gamma-ray measurements on annihilating or decaying Dark Matter
Gert Hütsi, Andi Hektor, Martti Raidal
We analyze the recently published Fermi-LAT diffuse gamma-ray measurements in the context of leptonically annihilating or decaying dark matter (DM) with the aim to explain simultan…